Abstract
The effects of those impurities most commonly found in scrap steel on the mechanical properties of low-carbon steel were investigated. The yield and tensile strengths, uniform elongation, strain-hardening exponent, and normal anisotropy ratio were determined as afunction of copper, nickel, tin, and chromium content. Attempts to correlate the formability of steel sheet with changes in these properties are described. Emphasis is placed on the use of the normal anisotropy ratio and the strain-hardening exponentfor predicting to tal formability performance. The results of these tests indicate that tin is most detrimental to the formability of mild steel and that appreciable amounts of copper, nickel, and chromium can be tolerated with relatively few adverse effects.
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