1906
First electric arc furnace is used in the U.S. at Holcomb Steel Co. in Syracuse, NY.

1913
First true stainless steel melted by Harry Brearley in Sheffield, England.

1913
Crucible Steel Casting Co.'s Lansdown, PA plant installs the first low-frequency electric furnace for special melting.

1923
Formation of the International Committee of Foundry Technical Associations in Zurich, Switzerland.

1924
Dr. W.H. Hatfield invents 18/8 stainless steel (18% chromium, 8% nickel).

1930
University of Michigan professors pioneer Spectrography for metal analysis.

1930
First high-frequency coreless electric induction furnace in the U.S. is installed in the Lebanon Steel Foundry in Lebanon, PA.

1940
Wood flour is introduced into foundry practice as a sand additive.

1947
The Shell process, invented by J. Croning of Germany during WWII, is discovered by U.S. officials and made public.

1948
Development of ductile iron, a cast iron with a fully spheriodal graphite structure.

1949
U.S. patent granted to K.D. Millis, A.P. Gagnebin and N.B. Pilling of International Nickel Company for developing ductile iron.

1953
The Hotbox system of making and curing cores in one operation is developed, eliminating the need for dielectric drying ovens.

1958
H.F. Shroyer is granted a patent for the full mold process, the forerunner of the expendable pattern (lost foam) casting process.

1960
Compactibility and methylene blue clay tests are developed for green sand control. Also developed at this time are high-pressure molding processes and fast-setting nobake binders for sand.

1964
The first Disamatic molding machine is introduced.

1965
The Scanning Electron Microscope is invented by the Cambridge University Engineering Department in England.

1965
Cast metal matrix composites are first poured at International Nickel Company in Sterling Forest, NY, by Pradeep Rohatgi.

1968
The Coldbox process is introduced by L. Toriello and J. Robins for high production core making.

Early 1970s
The Semi-Solid Metalworking (SSM) process is conceived of at Massachusetts Institute of Technology. It combines aspects of casting with aspects of forging.

1971
The Japanese develop V-Process molding. This method uses unbonded sand and a vacuum.

1971
Rheocasting is developed at Massachusetts Institute of Technology.

1971
U.S. Congress passes the Clean Air Act and OSHA, the Occupational Health and Safety Act.

1972
The first production Austempered Ductile Iron (ADI) component is produced by Wagner Castings Company.

1974
Fiat introduces the in-mold process for ductile iron treatment.

1976
Compacted graphite iron (CGI), an iron with elongated graphite particles with rounded edges and roughened surfaces, is developed in the U.K. It has characteristics of both gray and ductile iron.

1982
The Warm Box binder system is introduced.

1993
First foundry application of a plasma ladle refiner (melting and refining in one vessel) occurs at Maynard Steel Casting Company in Milwaukee, WI.

1995
Babcock and Wilcox, Barberton, OH, patent a lost foam vacuum casting process to produce stainless steel castings with low carbon content.

1996
Cast metal matrix composites are first used in a production model automobile in the brake rotors for the Lotus Elise.

1997
Electromagnetic casting processes developed by Argonne and Inland Steel Corporation. Electromagnetic edge containment greatly reduces cost and energy expenditures in steel production.