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Microalloyed Bar Products
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English
Abstract
Microalloying is the technique of adding very small amounts of certain elements to steel in order to markedly improve the mechanical properties, most notably the strength and hardness. In 1977, the VanCraft series of high strength microalloyed cold finished bars was introduced. In 1978, this technique has been extended to include hot rolled bars for hot forging applications.
Hot forging of steel bars is the technique employed to produce many critical automotive components such as connecting rods, stabilizer bars,
and many others. Typically, these parts require subsequent heat treatment to obtain the necessary properties. By microalloying with Cb or V, this heat treatment can often be eliminated since the desired properties are met in the as-forged part. This provides a significant cost savings and, of course, results in a reduction in energy consumption.
The metallurgical principles involved and the properties obtainable in hot rolled and cold finished bars will be described as well as selected applications.
Authors
Citation
Bucher, J., Butler, J., and Held, J., "Microalloyed Bar Products," SAE Technical Paper 790026, 1979, https://doi.org/10.4271/790026.Also In
References
- SAE Handbook Supplement HS 30 1977
- “Micro Alloying 75” Symposium Proceedings
- British Steel Corporation “Steels for Forgings Offering Reduced Through Costs” Sheffield Laboratories April 19 1978
- Daimler-Benz Delivery Conditions GKN Translation No. 7257
- Frodl D. Randak A. Vetter K. 1974 29 3 169 175
- Steinen A von der Engineer S. Horn E. Preis G. 1975 95 6 209 214
- Engineer S. 1976 2 105 110
- Dunlop G. L. Carlsson C. J. Frimodig G. Met. Trans. A 9A February 1978 261 266
- Jones & Laughlin Steel Corporation VanCraft Brochure 1977