What Grade Of Steel Is 4140?
What Grade Of Steel Is 4140? AISI 4140 grade is a low-alloy steel that contains chromium and molybdenum that act as a strengthening agent. It is a versatile alloy steel that has a good combination of strength, toughness, corrosion resistance, and wear resistance. What is HRC of 4140? 4140 PREHARD is heat treated to a