AISI SAE 4140 42CrMo Alloy steel bar – 4140/42CrMo Prehard | Heat Treated Bars
What is AISI/SAE 4140/Din 1.7255 42CrMo steel AISI 4140 /42CrMo alloy steel is a chromium molybdenum alloy steel specification widely used in general purpose high tensile steel for components. As axles, shafts, bolts, gears, and other applications. Similar to alloy grade AISI 4130 chrome moly alloy steel but with slightly higher carbon content. The higher [...]