A New HSLA Steel for an Automotive Steering Coupling Component
Abstract:
A special processed steel was developed and has been used successfully to man,ufacture more than 45 million parts. Design objectives were low weight and 552MPa {80ksi} minimum yield. Processing required ultra-good formability with no cracking and a high degree of dimensional stability. A special heat treatment on a HSLA provided excellent formability with the capability of exceeding 552MPa (80ksi) after straining and low temperature thermal aging. It is a dual-phased, micro-alloyed steel identified as GM980X. · ·
This paper describes the development and the production experience since 1976. Data is shown on over 7 million pounds of steel involving 73 heats. The steel is cost effective in comparison with a conventional heat treated steel.
Keywords:
vanadium Microalloying, automotive, steering component.
Author:
D. D. Rogers, D. A. Wilkinson
Affiiation
Saginaw Steering Gear Division, Saginaw, Michigan 48605
PDF:
Source:
Vanadium Structural Steels - Reprint of papers on vanadium steel from the proceedings of “ASM HSLA Steels Technology and Applications Conference, Philadelphia, USA, Oct., 1983, pp. 161-168