4140 Hot Rolled Heat Treated Round Bar

4140 Hot Rolled Heat Treated Round Bar

4140 is a widely used medium carbon steel. A general purpose alloy, has good strength, toughness and hardness. Refered to as chromoly steel, due to the inclusion of .95% chromium and .20% molybdenum alloying elements.

4140 Hot Rolled Heat Treated Round Bar

Sizes through 7'' comply with ASTM-A193-B7, ASME SA193 Class B7 and/or MIL-S-1222(B7). Sizes over 7'' through 9'' conform to ASTM A434 Class BC.