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Cold-Rolled High-Strength Steels for Automotive Applications
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1973 by SAE International in United States
Annotation ability available
The metallurgical possibilities for increasing the strength of cold-rolled sheet are briefly reviewed. Solid solution hardening, precipitation hardening, grain refinement, and dislocation substructure can be used to varying extents to strengthen partially or fully recrystallized sheets. Yield strengths ranging 45-100 ksi (310-690 MPa) and higher appear to be technically feasible, and steels with yield strengths up to 65 ksi (450 MPa) are close to commercial production.
The average plastic strain ratios of the high-strength cold-rolled steels are somewhat higher (1.0-1.35) than for similar hot-rolled steels but still relatively poor when compared to low-strength aluminum killed deep drawing sheet. The forming limit curves and forming performance of cold-rolled sheet are similar to hot-rolled high-strength steels indicating that less severe part design, improved die design, improved lubrication and shop practice, and control of steel cleanliness and sulfide shape will be essential if the new steels are to be properly exploited in automobile parts.
CitationGray, J., "Cold-Rolled High-Strength Steels for Automotive Applications," SAE Technical Paper 730527, 1973, https://doi.org/10.4271/730527.
- “Materials for Vehicle Weight Reduction.” AIME Symposium Detroit Chapter Feb. 19 1973
- Johnson, T. E. Jr. Schaffnit W. O. “Dent Resistance of Cold-Rolled Low-Carbon Steel Sheet.” Fifteenth Mechanical Working and Steel Processing Conference, Iron and Steel Div. AIME Pittsburgh Jan. 24 1973
- Leslie W. C. Sober R. J. Babcock S. G. Green S. J. “Plastic Flow in Binary Substitutional Alloys of BCC Iron-Effects of Strain Rate, Temperature, and Alloy Content.” Transactions of the American Society for Metals 62 1969 690
- Kasper A. Chrysler Corp.
- Jones R. T. “Corrosion Resistance of Various Coated and Uncoated Steels in Automotive Body Applications.” U.S. Steel Research Center Bulletin Oct. 7 1968
- “An End to the Rusty Auto?” Business Week Jan. 13 1973 62k
- “Present Situation of Research on High-Strength Cold-Rolled Steel Sheet at Nippon Kokan.” Nippon Kokan Bulletin August 1972
- Yeo R. B. G. Melville A. G. Repas P. E. Gray J. M. “Properties and Control of Hot-Rolled Steels.” Jrl. of Metals 20 1968 33
- Gross J. H. “Transformation Characteristics of Low-Carbon Columbium Containing Steels.” Metallurg Symposium on Low-Alloy High-Strength Steels Nuremberg BRD May 1970
- “Strong, Tough Structural Steels.” April 1967
- Metallurg Symposium Publication “Low-Alloy High-Strength Steels.” Proceedings of Symposium Nuremberg, BRD May 1970
- “Processing and Properties of Low-Carbon Steel.” Proceedings of AIME Symposium Cleveland Oct. 18-19 1972 AIME New York
- Meyer L. Buhler H. E. Heisterkamp F. “Metallurgical and Technological Basis for the Development and Production of Pearlite-Reduced Structural Steels.” Thyssen Forschung 3 1 2 1971 8
- Gray J. M. “High-Strength Hot-Rolled Precipitation-Hardened Steels for Automotive Applications.” ASM Material/Design Workshop on High-Strength Hot-Rolled Steels for Automobiles Detroit Jan. 28 1972
- Irani J. J. Burton D. Jones J. D. Rothwell A. B. “Beneficial Effects of Controlled Rolling in the Processing of Structural Steels.” 1967 110
- Gray J. M. Wilson W. G. “Effect of Processing Variables on the Properties of a Low-Carbon Columbium Steel Proposed for Arctic Pipelines.” 14th Mechanical Working and Steel Processing Conference Chicago Jan. 29 1972 “Mechanical Working and Steel Processing Proceedings.” Iron and Steel Div., Metallurgical Society of AIME X 1972
- Gray J. M. Melville A. G. Repas P. E. Yeo R. B. G. “Beneficial Effects of Controlled Rolling in the Processing of Structural Steels.” “Strong Tough Structural Steels.” Scarboro, U. K. April 1967
- Gray J. M. Yeo R. B. G. “Columbium Carbonitride Precipitation in Low-Alloy Steels with Particular Emphasis on ‘Precipitate-Row’ Formation.” 61 1968 255
- Hu H. Goodman S. R. “Effect of Manganese on the Annealing Texture and Strain Ratio of Low Carbon Steels.” Metallurgical Transactions 1 1970 3057
- Dillamore I. L. Private Communication BSC Corporate Laboratories Sheffield, U. K. October 1972
- Gladman T. McIvor I. D. Pickering F. B. “Effect of Carbide and Nitride Particles on the Recrystallization of Ferrite.” Jrl. Iron and Steel Institute 209 1971 380
- Gray J. M. “Columbium (Niobium) As A Grain Refiner In Hot-Rolled Steels.” “Processing and Properties of Low-Carbon Steels Cleveland Oct 18 19 1972 Gray J. M.
- Mould P. E. Gray J. M. “Plastic Anisotropy of Low-Carbon, Low-Manganese Steels Containing Niobium.” Metallurgical Transactions 3 1972 3122
- Kubota H. Kozasu I. “Effect of Small Amounts of Nb and V on the Annealing Behavior of Cold-Worked Low-Carbon Steels.” TMS Fall Meeting of AIME Detroit Oct. 14 1968
- Hecker S. S. “Formability of High-Strength Low-Alloy Steel Sheets.” Fall Metal Congress Cleveland Oct. 16-19 1972
- Gray J. M. “High-Strength Hot-Rolled Steels for Automotive Use.” “Materials for Vehicle Weight Reduction.” Detroit Chapter AIME Feb. 19 1973
- Hunt P. J. “The Development of High-Strength Steels for Bumpers and Bumper Reinforcings.” CIM Conference of Metallurgists Halifax, Nova Scotia Aug. 27-29 1972
- Ferry B. N. “Formability of Light Gage HSLA Sheets.” Fifteenth Mechanical Working and Steel Processing Conference, Iron and Steel Div. AIME, Pittsburgh Jan. 24 1973 “Mechanical Working and Steel Processing Proceedings.” XI 1973