Building Materials - Engineering
Q1: Vanadium steel is generally used forA
railway switches and crossing
B
bearing balls
C
magnets
D
axles and springs.
ANS:D - axles and springs. Chromium-vanadium steel (symbol Cr-V or CrV; 6000-series SAE steel grades) is a group of steel alloys incorporating carbon (0.50%) , manganese (0.70-0. 90%) , silicon (0.30%) , chromium (0.80-1. 10%) , and vanadium (0.18%). Some forms can be used as high-speed steel. Chromium and vanadium both make the steel more hardenable. |
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