Both chromium and vanadium increase the hardenability of steel. Important synergistic effects, not yet fully defined, can also occur when combinations are used in place of single elements.
Chromium brings resistance to corrosion and oxidation, high temperature strength and abrasion resistance. Vanadium inhibits grain growth during heat treating while improving toughness of hardened and tempered steels.
Grade Designation: 61XX
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Chemical Composition Ranges
and Limits Charts.