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Crucible Industries, commonly known as Crucible, is an American company which develops and manufactures specialty steels, and is the sole producer of Crucible Particle Metallurgy (CPM) steels. The company produces high speed, stainless and
tool steel Tool steel is any of various carbon steels and alloy steels that are particularly well-suited to be made into tools and tooling, including cutting tools, dies, hand tools, knives, and others. Their suitability comes from their distinctive har ...
s for the automotive, cutlery, aerospace, and
machine tool A machine tool is a machine for handling or machining metal or other rigid materials, usually by cutting, boring, grinding, shearing, or other forms of deformations. Machine tools employ some sort of tool that does the cutting or shaping. All ...
industries. Crucible's history spans over 100 years, and the company inherited some of its ability to produce high-grade steel from England beginning in the late 1800s. Thirteen crucible-steel companies merged in 1900 to become the largest producer of crucible steel in the United States, and this company evolved into a corporation with 1,400 employees in several states. Crucible declined in tandem with the automotive industry during the 1980s, recovering over the next decade. Although the company entered
bankruptcy Bankruptcy is a legal process through which people or other entities who cannot repay debts to creditors may seek relief from some or all of their debts. In most jurisdictions, bankruptcy is imposed by a court order, often initiated by the debtor ...
in 2009, JP Industries of Cleveland revived it as Crucible Specialty Metals Division to continue producing specialty steels at its original site. Some of Crucible's products are manufactured using a powder metallurgy process (their CPM process), resulting in steels with superior mechanical properties. These steels find specialized scientific and industrial applications and are also favoured by knife makers for the production of blades which are tough, hard and corrosion resistant.


History

The Crucible Steel Company of America was formed from the merger of thirteen crucible-steel companies in 1900. This, known as "the great consolidation of 1900", inspired other steel companies to form
U.S. Steel United States Steel Corporation, more commonly known as U.S. Steel, is an American integrated steel producer headquartered in Pittsburgh, Pittsburgh, Pennsylvania, with production operations primarily in the United States of America and in severa ...
a year later. From 1900 through the 20th century, Crucible developed and patented new steels, and brought new steel-production methods to the United States. C. H. Halcomb, Jr. was Crucible's first president and general manager. Two years later, he left Crucible, building the Halcomb Steel mill next door (where he installed the first electric-arc melting furnace in the U.S.). In 1911 Crucible acquired Halcomb Steel, merging the Halcomb plant with the new Sanderson plant to form the Sanderson-Halcomb Works. In 1955, it began producing vacuum-arc-remelted steels, becoming the first company to use this process commercially. By 1939, Crucible was the largest producer of
tool steel Tool steel is any of various carbon steels and alloy steels that are particularly well-suited to be made into tools and tooling, including cutting tools, dies, hand tools, knives, and others. Their suitability comes from their distinctive har ...
in the United States, making over 400 products (more than any other steel company). It had nine mills in four states, two coal mines, a water company and a half-interest in a
Mesabi The Mesabi Iron Range is a mining district in northeastern Minnesota following an elongate trend containing large deposits of iron ore. It is the largest of four major iron ranges in the region collectively known as the Iron Range of Minnesota ...
ore mine. From 1968 to 1984, Crucible was owned by
Colt Industries Colt(s) or COLT may refer to: *Colt (horse), an intact (uncastrated) male horse under four years of age People *Colt (given name) *Colt (surname) Places *Colt, Arkansas, United States *Colt, Louisiana, an unincorporated community, United States ...
. In 1985, its salaried employees bought it back. By then, the company was known as Crucible Materials Corporation. Fourteen hundred employees worldwide worked for a number of companies, including Crucible Specialty Metals in
Solvay, New York Solvay is a village located in the town of Geddes, Onondaga County, New York, United States, and a suburb of the city of Syracuse. According to the 2010 census, the village had a total population of 6,584. The village is named after the Solvay br ...
; Trent Tube in
East Troy, Wisconsin East Troy is a village in Walworth County, Wisconsin, Walworth County, Wisconsin, United States. The population was 4,687 at the 2020 United States Census, 2020 census. The village is located southwest of the East Troy (town), Wisconsin, Town of ...
; Crucible Magnetics in
Elizabethtown, Kentucky Elizabethtown is a home rule-class city and the county seat of Hardin County, Kentucky, United States. The population was 28,531 at the 2010 census, and was estimated at 30,289 by the U.S. Census Bureau in 2019, making it the 11th-largest city ...
; Crucible Compaction Metals Operations in
Oakdale, Pennsylvania Oakdale is a borough in Allegheny County, Pennsylvania, United States and is a Pittsburgh suburb. The population was 1,459 at the 2010 census. Its zip code is 15071. Geography According to the United States Census Bureau, the borough has a tota ...
; the Cancer Research Center in Pittsburgh, and Crucible Limited in
Sheffield Sheffield is a city status in the United Kingdom, city in South Yorkshire, England, whose name derives from the River Sheaf which runs through it. The city serves as the administrative centre of the City of Sheffield. It is Historic counties o ...
, England. In 1989, the number of employees was reduced to 600 after a strike. The 1980s saw layoffs and plant closures across the U.S.; more than 200,000 workers lost their jobs, and more than 400 mills and divisions of plants (including Crucible's Midland plant) closed. In 1984, Crucible made the
titanium alloy Titanium alloys are alloys that contain a mixture of titanium and other chemical elements. Such alloys have very high tensile strength and toughness (even at extreme temperatures). They are light in weight, have extraordinary corrosion resista ...
used in the
artificial heart An artificial heart is a device that replaces the heart. Artificial hearts are typically used to bridge the time to heart transplantation, or to permanently replace the heart in the case that a heart transplant (from a deceased human or, exper ...
implanted by Robert Jarvik, and donated corrosive-resistant steel used to help renovate the
Statue of Liberty The Statue of Liberty (''Liberty Enlightening the World''; French: ''La Liberté éclairant le monde'') is a List of colossal sculpture in situ, colossal neoclassical sculpture on Liberty Island in New York Harbor in New York City, in the U ...
. During the 1990s, Crucible expanded its operations to Canada, working with
General Motors The General Motors Company (GM) is an American Multinational corporation, multinational Automotive industry, automotive manufacturing company headquartered in Detroit, Michigan, United States. It is the largest automaker in the United States and ...
, and building a facility with newly patented smelting and processing equipment costing $25 million. Although the number of employees increased to about 1,400, from 2001 to 2003, 200 were
laid off A layoff or downsizing is the temporary suspension or permanent termination of employment of an employee or, more commonly, a group of employees (collective layoff) for business reasons, such as personnel management or downsizing (reducing the ...
. In 2004, Crucible entered the knife market, and in May 2009, the company filed for
Chapter 11 bankruptcy Chapter 11 of the United States Bankruptcy Code (Title 11 of the United States Code) permits reorganization under the bankruptcy laws of the United States. Such reorganization, known as Chapter 11 bankruptcy, is available to every business, whe ...
. That October, JP Industries (a private equity group) purchased the operating assets of the Crucible Specialty Metals Division, formed Crucible Industries, and restarted the Geddes steel mill.


Company names

A number of steel companies have operated in Syracuse, maintaining Crucible's intellectual property and patents. In 1870, William A. Sweet founded the Sweet Iron Works. Sanderson Brothers of Sheffield, England, bought the Sweet Iron Works for U.S. production in 1876, renaming the steelworks Sanderson. In 1900, Sanderson's Syracuse steelworks merged into the Crucible Steel Company of America. In 1946, the Sanderson and Halcomb steelworks were renamed the Sanderson-Halcomb Works, later becoming the Syracuse Works of Crucible Steel. In 1968, Crucible became Colt's Crucible Specialty Metals Division. Colt consolidated its basic-materials group into the Crucible Materials Corporation in 1983.


Founding companies

According to ExplorePAHistory.com, "By 1877, the region's fourteen medium-scale crucible steel factories produced nearly three-fourths of the nation's output. Metal-shaping factories across the country depended on cutting tools made of crucible steel through the 1920s, when electric steel furnaces gained prominence." Three companies which merged to form Crucible into the largest U.S. crucible-steel-producing company were: * ''Sanderson Brothers'' began producing steel in Sheffield, England in 1776. In 1873, it was using a gas-fired crucible melting furnace. Sanderson sold its Syracuse operation to Crucible, expanding its English company with the purchase of Samuel Newbould and Company. * Hussey, Wells and Company of
Pittsburgh Pittsburgh ( ) is a city in the Commonwealth (U.S. state), Commonwealth of Pennsylvania, United States, and the county seat of Allegheny County, Pennsylvania, Allegheny County. It is the most populous city in both Allegheny County and Wester ...
, founded in 1859, was the first company in America to manufacture
crucible steel Crucible steel is steel made by melting pig iron (cast iron), iron, and sometimes steel, often along with sand, glass, ashes, and other fluxes, in a crucible. In ancient times steel and iron were impossible to melt using charcoal or coal fires ...
. Its partners were Curtis G. Hussey (who formed the Pittsburgh and Boston Mining Corporation to mine copper) and
Thomas Marshall Howe Thomas Marshall Howe (April 20, 1808 – July 20, 1877) was a Whig member of the U.S. House of Representatives from Pennsylvania. He was a financier, statesman, manufacturer, and philanthropist. He was considered the leading citizen of Pittsbur ...
(banker, investor, Congressman, assistant adjutant general of Pennsylvania and the first president of the Pittsburgh Chamber of Commerce. Thomas' son, George, helped form Crucible. Hussey and James M. Cooper formed C. G. Hussey and Company to roll and market copper. Before merging with Crucible, Hussey, Wells and Company became Howe, Brown and Company when George joined his father. * Park, Brother and Company of Pittsburgh, founded in 1860, was the second company to produce crucible steel in the U.S. James Park, Jr. and the elder David E. Park began the company after working with their father for twenty years. In 1857, James Jr. founded the Lake Superior Copper Works to sheath ship hulls. After encountering Hussey, Howe and Wells, he followed them into manufacturing crucible steel. Park built the Black Diamond (Park) Steel Works, and had interests in a suspension-bridge company and several banks. David's sons, David E. Jr., William G. and James H. Park, led in forming Crucible. In 1900, Park Steel was the largest producer of crucible and special-purpose open-hearth steels in the world. The other companies which formed Crucible were: * Aliquippa Steel Company, several miles north of Pittsburgh on the Ohio River * Anderson, DuPuy and Company * Beaver Falls Steel Works * Burgess Steel and Iron Works * Crescent Steel of Pittsburgh (founded 1865) * Cumberland Steel and Tin Plate Company * Isaac Jones' Pittsburgh Steel Works (later Anderson, Deputy and Company; founded 1845) * LaBelle Steel Company (formerly Reiter, Hartman and Company) of
Allegheny, Pennsylvania Allegheny City was a municipality that existed in the U.S. state of Pennsylvania from 1788 until it was annexed by Pittsburgh in 1907. It was located north across the Allegheny River from downtown Pittsburgh, with its southwest border formed by ...
(founded 1863) * Singer, Nimick and Company of Pittsburgh (founded 1848) * Spaulding and Jennings Company


Timeline

The following timeline provides references and events in the context of Crucible's history. Its primary source is the '' Syracuse Post-Standard'' archives, with other sources noted.


Sanderson Brothers and Company

''1776'': The Naylor and Sanderson Steel Mill was established in Sheffield, England, and began producing tool steel with the crucible method. By 1873 it was trading as Sanderson Brothers and Company, and using a gas-fired-crucible melting furnace. In 1876 Sanderson Brothers and Company bought Sweet Iron Works, which had been established in 1870 in Syracuse. Sheffield was known for its hard, durable steel, and Syracuse was known for its hard steel. Contemporary U.S. tariffs gave Sanderson an incentive for a U.S. operation. In 1878, Sanderson had $450,000 in capital and the following officers: Robert B. Campbell of New York, president; Samuel William Johnson of New York, secretary and William A. Sweet of Syracuse, general manager. In 1900, thirteen crucible-steel manufacturing companies formed the Crucible Steel Company of America. Sanderson divested itself of its American operation, offering 500,000 shares of stock for $50 million. Crucible's fifth annual report (published in 1905) showed debts of $3.6 million, $2.4 million less than the year before.


Halcomb Steel

In 1902 C. H. Halcomb Jr., Sanderson's president and general manager, left the company and built the Halcomb Steel mill next to the Sanderson mill. Halcomb installed the first
electric arc furnace An electric arc furnace (EAF) is a furnace that heats material by means of an electric arc. Industrial arc furnaces range in size from small units of approximately one-tonne capacity (used in foundries for producing cast iron products) up to ab ...
(EAF) in the United States in 1906. In 1911 the company was acquired by Crucible, which doubled the size of its western branch warehouse (now in
Chicago (''City in a Garden''); I Will , image_map = , map_caption = Interactive Map of Chicago , coordinates = , coordinates_footnotes = , subdivision_type = Country , subdivision_name ...
) in 1913.


Hoyt-Noe Steel Company

By 1913, Thatcher Hoyt and Paul E. Noe formed the Hoyt-Noe Steel Company in Chicago. Hoyt had been representing crucible steels for twenty years; his previous companies included the Braeburn Steel Company, Singer, Nimick and Company and the Sanderson Brothers Steel Company.


Crucible

Crucible patented the first formally classified
high-speed steel High-speed steel (HSS or HS) is a subset of tool steels, commonly used as cutting tool material. It is often used in power-saw blades and drill bits. It is superior to the older high-carbon steel tools used extensively through the 1940s in tha ...
, AISI T1 (German 18-0-1), in 1910, and its basic formula was used for the next forty years. After other high-speed steels were produced, T1 remained one of the most commonly used commercial high-speed steels for the next century. The next year Crucible formed the Pittsburg Crucible Steel Company, purchasing a site from Midland Steel on the
Ohio River The Ohio River is a long river in the United States. It is located at the boundary of the Midwestern and Southern United States, flowing southwesterly from western Pennsylvania to its mouth on the Mississippi River at the southern tip of Illino ...
near
Pittsburgh Pittsburgh ( ) is a city in the Commonwealth (U.S. state), Commonwealth of Pennsylvania, United States, and the county seat of Allegheny County, Pennsylvania, Allegheny County. It is the most populous city in both Allegheny County and Wester ...
for $7.5 million to build a new plant.
Midland, Pennsylvania Midland is a borough located along the Ohio River in western Beaver County, Pennsylvania, United States. As of the 2020 census, the borough population was 2,430. It is part of the Pittsburgh metropolitan area. Founded in 1906, it was initially ...
became Crucible's
planned town A planned community, planned city, planned town, or planned settlement is any community that was carefully planned from its inception and is typically constructed on previously undeveloped land. This contrasts with settlements that evolve ...
. During the 1920s and 1930s,
World War I World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, the United States, and the Ottoman Empire, with fightin ...
financier Horace S. Wilkinson oversaw Crucible president Frederick B. Hufnagel, refusing to modernize and controlling the company's finances as he pleased. This ended with the creation of the
Security and Exchange Commission The U.S. Securities and Exchange Commission (SEC) is an independent agency of the United States federal government, created in the aftermath of the Wall Street Crash of 1929. The primary purpose of the SEC is to enforce the law against market ...
in 1934 and Wilkinson's death in 1937. At the beginning of
World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ...
Crucible was the largest producer of tool steels in the United States, manufacturing more types of steel than any other company. The company used thirty metals to make 400 commonly used
alloy steel Alloy steel is steel that is alloyed with a variety of elements in total amounts between 1.0% and 50% by weight to improve its mechanical properties. Alloy steels are broken down into two groups: low alloy steels and high alloy steels. The differe ...
s. It had nine mills in New York, New Jersey, Pennsylvania and Ohio, two coal mines, a water company and a half-interest in a
Mesabi Range The Mesabi Iron Range is a mining district in northeastern Minnesota following an elongate trend containing large deposits of iron ore. It is the largest of four major iron ranges in the region collectively known as the Iron Range of Minnesota ...
iron ore Iron ores are rocks and minerals from which metallic iron can be economically extracted. The ores are usually rich in iron oxides and vary in color from dark grey, bright yellow, or deep purple to rusty red. The iron is usually found in the fo ...
mine. Now the company's chairman, Hufnagel brought in Raoul Eugene Desvernine as president. With a legal background, Desvernine focused on improving sales. The company had about 15,000 customers, net sales of $60 million and earnings of $4 million in 1937. The following year, Crucible lost $2 million as its sales halved during the
recession of 1937–38 In economics, a recession is a business cycle contraction when there is a general decline in economic activity. Recessions generally occur when there is a widespread drop in spending (an adverse demand shock). This may be triggered by various ...
. When Crucible sought to borrow money in 1940, the Mellon Security Corporation insisted on a full audit. This resulted in a $40 million revaluation of the company's property and plants (down to $81 million) and the loss of its fiscal surplus. On December 7, 1941, when the U.S. entered World War II, Syracuse was considered the
Porretta Terme Porretta Terme ( Bolognese: ''Puratta'') is a town of the Reno Valley Tuscan-Emilian Apennines, a ''frazione'' of the ''comune'' of Alto Reno Terme, Emilia-Romagna. Porretta Terme is located about south-west of Bologna. Known since Roman times fo ...
(Italy's gear-producing center) of America. In 1945 William P. Snyder Jr., president of Snyder Mining Company of Pittsburgh and a Crucible stockholder, brought in president William H. Colvin Jr. With the board's approval, Colvin closed four of the company's eleven operations and began a $46 million modernization. The Syracuse plants were consolidated in 1946 into the Sanderson-Halcomb Works. In 1949, Crucible began operations in an $18 million sheet and strip mill at the Midland works, becoming the first steel mill to use hot and cold rolling of stainless and high-alloy sheet and
strip Strip or Stripping may refer to: Places * Aouzou Strip, a strip of land following the northern border of Chad that had been claimed and occupied by Libya * Caprivi Strip, narrow strip of land extending from the Okavango Region of Namibia to ...
. Iron Age, manufacturer of the hot reversing mill, called this a transition from a curiosity to standard production practice; ovens on both sides of the rolls could better control the steel's temperature. When Crucible removed
escape clause An escape clause is any clause, term, or condition in a contract that allows a party to that contract to avoid having to perform the contract. If an agreement was drawn up for the sale of a house, for example, the purchaser could include some k ...
s from its employee contracts after the war, the company received approval from the
United Steelworkers The United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial and Service Workers International Union, commonly known as the United Steelworkers (USW), is a general trade union with members across North America. Headquar ...
. During the 1950s, shortages of tungsten and vanadium caused by the wartime drive for cheaper alloying metals resulted in the development of AISI M2 high-speed steel.
Colt Industries Colt(s) or COLT may refer to: *Colt (horse), an intact (uncastrated) male horse under four years of age People *Colt (given name) *Colt (surname) Places *Colt, Arkansas, United States *Colt, Louisiana, an unincorporated community, United States ...
bought Crucible Steel Corporation of America in 1968, and the Syracuse works become Colt's Crucible Specialty Metals Division. In 1975, Crucible began marketing its products in the
Soviet Union The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a federal union of fifteen national ...
. During the 1980s the AISI reported that more than 200,000 steelworkers in the U.S. had lost their jobs, and more than 400 mills and plant divisions were closing (including Crucible's Midland plant near Pittsburgh). Jones & Laughlin Steel bought the Midland plant and merged with
Republic Steel Republic Steel is an American steel manufacturer that was once the country's third largest steel producer. It was founded as the Republic Iron and Steel Company in Youngstown, Ohio in 1899. After rising to prominence during the early 20th Centu ...
to form the
LTV Steel Corporation LTV may refer to: Television * Lagos Television, a TV channel in Nigeria. * Latvijas Televīzija, Latvian Television * LRT televizija, formerly LTV, Lithuanian National Television * LTV Ethiopia, a private satellite TV channel in Ethiopia * Lumier ...
, which went bankrupt. In 1981 Colt moved the Crucible and Trent Tube Divisions to Syracuse from Pittsburgh, and the following year it began closing its Crucible Steel Plant (laying off 400 workers). In 1983 Colt Industries consolidated its basic-materials group into the Crucible Materials Corporation, with its headquarters in New York City. This was the last year that
Crucible Specialty Metals A crucible is a ceramic or metal container in which metals or other substances may be melted or subjected to very high temperatures. While crucibles were historically usually made from clay, they can be made from any material that withstands te ...
negotiated union contracts without a strike. In 1984 Crucible manufactured the titanium alloy used in the
artificial heart An artificial heart is a device that replaces the heart. Artificial hearts are typically used to bridge the time to heart transplantation, or to permanently replace the heart in the case that a heart transplant (from a deceased human or, exper ...
implanted by Robert Jarvik, and donated corrosion-resistant steel for the renovation of the Statue of Liberty. The following year, Crucible Materials Corporation's salaried employees purchased the corporation’s stock in a
leveraged buyout A leveraged buyout (LBO) is one company's acquisition of another company using a significant amount of borrowed money (leverage) to meet the cost of acquisition. The assets of the company being acquired are often used as collateral for the loan ...
and moved its headquarters to Syracuse. The purchase price ($135 million) included the 1,400-employee Crucible Specialty Metals plant in Solvay; Trent Tube in
East Troy East Troy is a village in Walworth County, Wisconsin, United States. The population was 4,687 at the 2020 census. The village is located southwest of the Town of East Troy. A small portion extends into the adjacent Town of Troy. Geography Eas ...
, Wisconsin; Crucible Magnetics in Elizabethtown, Kentucky; Crucible Compaction Metals Operations in Oakdale, Pennsylvania; Crucible Research Center in Pittsburgh, and Crucible Limited in Sheffield, England. In 1988, Crucible Specialty Metals modernized its plant and the division employed 1,425 people worldwide. The Crucible Service Centers Division opened its Camillus, New York headquarters in 1989, marketing specialty steel products worldwide. That year, the workers struck; when a contract was signed, only 600 of 1,100 workers were called back to work. In 1991 Crucible Materials and
General Motors The General Motors Company (GM) is an American Multinational corporation, multinational Automotive industry, automotive manufacturing company headquartered in Detroit, Michigan, United States. It is the largest automaker in the United States and ...
' Central Foundry Division begin three years of joint research and development in die casting, tooling and machine elements, and Crucible Materials Corporation purchased
Sanderson Specialty Steels Sanderson may refer to: Places * Sanderson, Florida, a town in the United States * Sanderson, Texas, a census-designated place in the United States * Sanderson, West Virginia, an unincorporated community in the United States * Sanderson, Northern T ...
of Canada. Two years later union workers rejected a company contract offer, continuing to work. At this time, Crucible employed about 700 union workers. By 1998 CMC employed 820 workers and invested $25 million in a new, facility for manufacturing newly patented smelting and processing equipment. In 2000, the
U.S. Department of Labor The United States Department of Labor (DOL) is one of the United States federal executive departments, executive departments of the federal government of the United States, U.S. federal government. It is responsible for the administration of fede ...
sued Crucible Materials Corporation over its pension plan for salaried employees. From 2001 to 2003, the corporation laid off 186 salaried and hourly workers on a rotating basis. CMC employed 1,209 workers, 722 union workers and 487 salaried workers in Geddes and its distribution center in Camillus. In 2004 Crucible Specialty Metals entered the knife market, moving its Camillus operation to the Geddes plant. The corporation filed for Chapter 11 bankruptcy in May 2009, and in October JP Industries (a private equity group in Cleveland) purchased the operating assets of the Crucible Specialty Metals Division and formed Crucible Industries. A month later, the Geddes steel mill was restarted. In 2010, Crucible partnered with Latrobe Specialty Steel Distribution to market its steels. According to Crucible president James Beckman, "Latrobe Distribution offers everything we wanted in a partner for our CPM grades of steel". Latrobe, with eight locations in North America, is a division of Latrobe Specialty Steel of Latrobe, Pennsylvania. That year Crucible partnered with Robert Zapp Werkstofftechnik, a division of the Zapp Group, to sell Crucible Particle Metallurgy products worldwide except for North America and Japan.


Knife design and manufacturing

Many production and custom knife manufacturers use Crucible steels. Chris Reeve collaborated with Dick Barber of Crucible to develop the S30V and S35VN steel alloys, and
Chris Reeve Knives Chris Reeve Knives is an American knife manufacturing corporation with international sales and distribution headquartered in Boise, Idaho, that designs, develops, and sells folding pocket knives and fixed-blade knives. Its products include the S ...
uses these and other steels. Bob Loveless introduced 154CM stainless-steel knives in 1972. A founder and president of the
Knifemakers' Guild The Knifemakers' Guild is an American organization, based in Richfield, Utah, made up of knifemakers to promote custom knives, encourage ethical business practices, assist with technical aspects of knife making, and to sponsor knife shows. The Guil ...
, Loveless has designed for
Gerber Knives Gerber Legendary Blades is an American maker of knife, knives, Gerber multitool, multitools, and other tools for outdoors and military headquartered in Portland, Oregon. Gerber is owned by the Finland, Finnish outdoors products company Fiskars. ...
, Lone Wolf Knives and
Beretta Fabbrica d'Armi Pietro Beretta (; "Pietro Beretta Weapon Factory") is a privately held Italian firearms manufacturing company operating in several countries. Its firearms are used worldwide for a variety of civilian, law enforcement, and milita ...
.
Schrade Cutlery Imperial Schrade Corp. was an American knife manufacturer of hunting knives, pocketknives, utility knives, and bayonets during the 20th and early 21st centuries. The consolidation of five forerunner companies, including its namesakes, the Imperi ...
and
Spyderco Spyderco is an American cutlery company based in Golden, Colorado, producing knives and knife sharpeners. Spyderco pioneered many features that are now common in folding knives, including the pocket clip, serrations, and the opening hole. Spyd ...
use 154CM, 440C, D2, S30V, S60V and S90V steel, and
Ernest Emerson Ernest R. Emerson (born March 7, 1955) is an American custom Knifemaking, knifemaker, Martial arts, martial artist, and edged-weapons expert. Originally an engineer and machinist in the aerospace industry, Emerson became a knifemaker by produci ...
's knives are hard-ground from differentially heat-treated A2 tool steel.
Emerson Knives Emerson Knives, Inc. is an American company that produces knives and related products. It was founded in 1996 by custom knifemaker Ernest Emerson in an effort to mass-produce his folding knife designs for the U.S. Military and collector markets. ...
machines blades from 154CM steel, and
Mike Snody Mike Snody is a Southern Texas knife maker who is known for his use of exotic materials in his custom knives. He is currently based in Walsenburg, Colorado. Knife Making Snody worked as a Quality Control Inspector in the petroleum industry befor ...
uses A2, S35V, 154CM and 440C steels.
Phill Hartsfield Phill Hartsfield (August 16,1931 – May 20, 2010) was a Southern California sword and knifemaker based in Garden Grove who is noted for popularizing the chisel ground blade in the western world. Hartsfield's designs have influenced other k ...
's
katana A is a Japanese sword characterized by a curved, single-edged blade with a circular or squared guard and long grip to accommodate two hands. Developed later than the '' tachi'', it was used by samurai in feudal Japan and worn with the edge f ...
-style blades are hand-ground from A2 tool steel and differentially edge-hardened.Hartsfield, Phill (1995), "Live Swords", ''International Shinkendo Newsletter'' Volume 1, Issue 3.
Ken Onion Ken Onion (born January 16, 1963) is an American custom knifemaker based in Kaneohe, Hawaii, United States who invented the "SpeedSafe" assisted opening mechanism for Kershaw Knives. Ken Onion was the Premier Knife Designer for Kershaw Knives. ...
's Kershaw's Blur uses
CPM S30V steel CPM S30V is a martensitic (hardened) powder-made (sintered) wear and corrosion resistant stainless steel developed by Dick Barber of Crucible Industries in collaboration with knifemaker Chris Reeve. Its chemistry promotes the formation and even d ...
.


Products

Crucible Particle Metallurgy (CPM) steels are used in the automotive, aerospace and tool industries. The
list of blade materials Blade materials are materials used to make the blade of a knife or other simple edged hand tool or weapon, such as a hatchet or sword. Blades can be made from a variety of materials. The most common being carbon steel, stainless steel, tool s ...
describes several CPM products, and the company's website has data sheets for all of them. The following table includes trademarks of Crucible users. Although the following metals add general characteristics to an alloy, its actual characteristics are determined by a number of factors. ''Metallurgy for the non-Metallurgist'' is an introduction to the field.


CPM process

Conventional and CPM steel-making
smelts Smelts are a family of small fish, the Osmeridae, found in the North Atlantic and North Pacific Oceans, as well as rivers, streams and lakes in Europe, North America and Northeast Asia. They are also known as freshwater smelts or typical smelts ...
ore Ore is natural rock or sediment that contains one or more valuable minerals, typically containing metals, that can be mined, treated and sold at a profit.Encyclopædia Britannica. "Ore". Encyclopædia Britannica Online. Retrieved 7 Apr ...
into steel with an
electric arc furnace An electric arc furnace (EAF) is a furnace that heats material by means of an electric arc. Industrial arc furnaces range in size from small units of approximately one-tonne capacity (used in foundries for producing cast iron products) up to ab ...
, refines it by removing some carbon, reducing it by removing the sulphur. Further refining may use
argon oxygen decarburization Argon oxygen decarburization (AOD) is a process primarily used in stainless steel making and other high grade alloys with oxidizable elements such as chromium and aluminum. After initial melting the metal is then transferred to an AOD vessel where ...
, an implementation of
powder metallurgy Powder metallurgy (PM) is a term covering a wide range of ways in which materials or components are made from metal powders. PM processes can reduce or eliminate the need for subtractive processes in manufacturing, lowering material losses and ...
. The conventional process teems (distributes and pours) the steel into ingot molds. The steel slowly solidifies, allowing the elements to segregate into non-uniform patterns at the microscopic level. The CPM process pours molten steel through a small nozzle. High-pressure gas atomizes the liquid stream into a spray which rapidly cools the steel into a uniform powder. The powder then goes into high-pressure containers and is heated at
forge A forge is a type of hearth used for heating metals, or the workplace (smithy) where such a hearth is located. The forge is used by the smith to heat a piece of metal to a temperature at which it becomes easier to shape by forging, or to th ...
temperatures to press the powder into ingots; this is known as
hot isostatic pressing Hot isostatic pressing (HIP) is a manufacturing process, used to reduce the porosity of metals and increase the density of many ceramic materials. This improves the material's mechanical properties and workability. The process can be used to pro ...
(HIP), and the resulting metal is uniform. Both processes then use
hot Hot or the acronym HOT may refer to: Food and drink *Pungency, in food, a spicy or hot quality *Hot, a wine tasting descriptor Places * Hot district, a district of Chiang Mai province, Thailand **Hot subdistrict, a sub-district of Hot Distric ...
or
cold rolling In metalworking, rolling is a metal forming process in which metal stock is passed through one or more pairs of rolls to reduce the thickness, to make the thickness uniform, and/or to impart a desired mechanical property. The concept is simil ...
to toughen the steel and
mill Mill may refer to: Science and technology * * Mill (grinding) * Milling (machining) * Millwork * Textile mill * Steel mill, a factory for the manufacture of steel * List of types of mill * Mill, the arithmetic unit of the Analytical Engine early ...
it into finished products.


Publications


Cataloged Crucible

* Crucible Steel Company of America, ''Condensed suggestions for steel workers''. BiblioBazaar (1902, reprint 2010) * Crucible Steel Company of America, ''High Speed Steel''. (1912, reprint 2011) Nabu Press, * Crucible Steel Company of America, ''Crucible Steel Company of America'' (1925) ASIN B002683KAG


Crucible

* Crucible Steel Company of America, ''The Treatment of Steel''. (1902) * Crucible Steel Company of America, ''Sanderson Bros. Steel Works''. (1911) * Crucible Steel Company of America, ''Steels and Alloys for Special Purposes'' (1912) * Underhill, Earl M.; Crucible Steel Company of America, ''Permanent magnet design: including a discussion of permanent magnet measurements'' (1943) * Payson, Peter; Crucible Steel Company of America, ''The Annealing of Steel''. (1944) Payson * Crucible Steel Company of America, ''The Fabricator's Handbook - How to Fabricate Rezistal Stainless Steels Produced by Crucible Steel Company of America'' (1955) * Mathews, John A. (1872–1935), ''Crucible Steel Company of America. Central Research Laboratory. Library'' (1959) * Banerjee, B. R.; Hauser, J. J.; Crucible Steel Company of America, ''Effect of Processing Variables on Crack Propagation of High-strength Steels and Titanium: Fracture Micromechanics in High-strength Steels'', Crucible Steel Company of America, Central Research Laboratory (1963) * Crucible Steel Company of America. Library; Ussack, P., ''Continuous Casting of Steel''. (3 ed. 1964) Volume 12, Library. Bibliographical series.


Crucible and the U.S. Air Force

* Tarwater, J. P.; Dulis, Edward J.; Wright Air Development Center; Crucible Steel Company of America, ''Investigation of Fe-Mn-Cr-N-C System for Heat Resistance and Oxidation Resistance Between 1200 F and 2000 F'' Wright Air Development Center, Air Research and Development Command, U.S. Air Force (1957). * Bhat, Gopal K.; Philip, T. V.; Nehrenberg, Alvin E.; Steven, G.; Crucible Steel Company of America; Wright Air Development Center, United States. Wright Air Development Division. ''A Study of the Metallurgical Properties that are Necessary for Satisfactory Bearing Performance and the Development of Improved Bearing Alloys for Service Up to 1000 F''. Defense Technical Information Center (1957). * Crucible Steel Company of America; Moskovitz, A.; Redmerski, L., ''Corrosion of superalloys by selected fused salts'' Wright Air Development Division, Air Research and Development Command, U.S. Air Force (1960). * Crucible Steel Company of America. Central Research Laboratory, ''Research on Workable Refractory Alloys of Tungsten, Tantalum, Molybdenun, and Columbium'' Aeronautical Systems Division, Air Force Systems Command, U.S. Air Force (1961).


See also

* Methods of steel production: ** Metallurgy cementation process ** Crucible steel processes ** Open-hearth furnace process, the Siemens-Martin process *
Steel industry Steel is an alloy made up of iron with added carbon to improve its strength and fracture resistance compared to other forms of iron. Many other elements may be present or added. Stainless steels that are corrosion- and oxidation-resistant t ...
**
Crucible steel Crucible steel is steel made by melting pig iron (cast iron), iron, and sometimes steel, often along with sand, glass, ashes, and other fluxes, in a crucible. In ancient times steel and iron were impossible to melt using charcoal or coal fires ...
**
Blast furnace A blast furnace is a type of metallurgical furnace used for smelting to produce industrial metals, generally pig iron, but also others such as lead or copper. ''Blast'' refers to the combustion air being "forced" or supplied above atmospheric ...
**
Steel mill A steel mill or steelworks is an industrial plant for the manufacture of steel. It may be an integrated steel works carrying out all steps of steelmaking from smelting iron ore to rolled product, but may also be a plant where steel semi-finish ...
or Steelworks. * Industry in Syracuse, New York.


Further reading

*Verhoeven, John D. (2007) Steel Metallurgy for the non-Metallurgist *Barney, Richard W.; Loveless, Robert W. (1995) ''How to Make Knives''. Krause Publications, Inc. *Desvernine, Raoul Eugene, former president of Crucible. ''Democratic Despotism'', against the ''
New Deal The New Deal was a series of programs, public work projects, financial reforms, and regulations enacted by President Franklin D. Roosevelt in the United States between 1933 and 1939. Major federal programs agencies included the Civilian Cons ...
''


History

*
Darnall Works The Darnall Works is a former steelworks in the Darnall area of Sheffield in England. The only remaining large complex of crucible furnaces, the works opened in the 1835 and were frequently extended and adapted until the late 20th century. Som ...
: built by Sanderson in 1835, and is part of a
Scheduled Ancient Monument In the United Kingdom, a scheduled monument is a nationally important archaeological site or historic building, given protection against unauthorised change. The various pieces of legislation that legally protect heritage assets from damage and d ...
in Sheffield, England. *
George Naylor George Naylor (21 October 1670 – 29 January 1730), of Hurstmonceaux, Sussex, was an English lawyer and Whig politician who sat in the House of Commons between 1706 and 1722. Naylor was the eldest son of Francis Naylor of Staple Inn and his wi ...
was the partner in the ''Naylor & Sanderson'' company.
George Naylor George Naylor (21 October 1670 – 29 January 1730), of Hurstmonceaux, Sussex, was an English lawyer and Whig politician who sat in the House of Commons between 1706 and 1722. Naylor was the eldest son of Francis Naylor of Staple Inn and his wi ...
, with his son-in-law
Edward Vickers Edward Vickers (1804-1897) was the founder of Naylor Vickers & Co. which became Vickers Limited. Career Vickers was a successful miller who invested his money in the railway industry. In 1828 he gained control of his father-in-law's steel foundry ...
, founded the
Vickers Limited Vickers Limited was a British engineering conglomerate. The business began in Sheffield in 1828 as a steel foundry and became known for its church bells, going on to make shafts and propellers for ships, armour plate and then artillery. Entir ...
steel
foundry A foundry is a factory that produces metal castings. Metals are cast into shapes by melting them into a liquid, pouring the metal into a mold, and removing the mold material after the metal has solidified as it cools. The most common metals pr ...
and the ''Naylor Vickers & Co.'' that
cast Cast may refer to: Music * Cast (band), an English alternative rock band * Cast (Mexican band), a progressive Mexican rock band * The Cast, a Scottish musical duo: Mairi Campbell and Dave Francis * ''Cast'', a 2012 album by Trespassers William * ...
church bells A church bell in Christian architecture is a bell which is rung in a church for a variety of religious purposes, and can be heard outside the building. Traditionally they are used to call worshippers to the church for a communal service, and ...
in 1854.
Vickers Limited Vickers Limited was a British engineering conglomerate. The business began in Sheffield in 1828 as a steel foundry and became known for its church bells, going on to make shafts and propellers for ships, armour plate and then artillery. Entir ...
acquired ''The Barrow Shipbuilding Company'' and Maxim Nordenfelt Guns And Ammunitions Company, and built the
Royal Navy The Royal Navy (RN) is the United Kingdom's naval warfare force. Although warships were used by English and Scottish kings from the early medieval period, the first major maritime engagements were fought in the Hundred Years' War against F ...
's first submarine, ''
Holland 1 ''Holland 1'' (or ''HM submarine Torpedo Boat No 1'') is the first submarine commissioned by the Royal Navy. The first in a six-boat batch of the , she was lost in 1913 while under tow to be scrapped following her decommissioning. Recovered in ...
'', and acquired the John Brown & Co. shipyard at
Clyde Clyde may refer to: People * Clyde (given name) * Clyde (surname) Places For townships see also Clyde Township Australia * Clyde, New South Wales * Clyde, Victoria * Clyde River, New South Wales Canada * Clyde, Alberta * Clyde, Ontario, a tow ...
, Scotland.
Edward Edward is an English given name. It is derived from the Anglo-Saxon name ''Ēadweard'', composed of the elements '' ēad'' "wealth, fortune; prosperous" and '' weard'' "guardian, protector”. History The name Edward was very popular in Anglo-Sa ...
, with his sons William and Thomas Vickers (son-in-law of
George Naylor George Naylor (21 October 1670 – 29 January 1730), of Hurstmonceaux, Sussex, was an English lawyer and Whig politician who sat in the House of Commons between 1706 and 1722. Naylor was the eldest son of Francis Naylor of Staple Inn and his wi ...
), also formed ''Vickers, Sons & Company'' to produce marine shafts,
propeller A propeller (colloquially often called a screw if on a ship or an airscrew if on an aircraft) is a device with a rotating hub and radiating blades that are set at a pitch to form a helical spiral which, when rotated, exerts linear thrust upon ...
s,
armour plate Military vehicles are commonly armoured (or armored; see spelling differences) to withstand the impact of shrapnel, bullets, shells, rockets, and missiles, protecting the personnel inside from enemy fire. Such vehicles include armoured fight ...
s, and
artillery Artillery is a class of heavy military ranged weapons that launch munitions far beyond the range and power of infantry firearms. Early artillery development focused on the ability to breach defensive walls and fortifications during siege ...
. * Grace's Guide to British industrial history of Sanderson Brothers and Co.


References


Bibliography

* Gilmer, Harrison, ''Birth of the American Crucible Steel Industry'' (1953). ** Harrison Gilmer's primary reference: Bwank, James Moore, ''History of the Manufacturing of Iron in All Ages'' (1892); publisher: American Iron and Steel Association, Philadelphia, Pennsylvania * Kaufmann, Dwight W., Crucible, ''The Story of a Steel Company'' (1986). * Kennedy, Richard; Roberts, George Adam (1998). ''Tool Steels'' (5th ed. ed.). Materials Park, OH: ASM International. .


External links

*
Crucible Products
*Crucible distributors: *
Latrobe Specialty Steel Distribution
*
Niagara Specialty Metals
*
Robert Zapp Werkstofftechnik
{{Iron and steel production 1900 establishments in New York (state) Steel companies of the United States American companies established in 1900 Manufacturing companies established in 1900 Manufacturing companies based in Syracuse, New York