4140 Hex Bar

Alloy Steel 4140 Hex Bar Cold Finish, also referred to a chromium-, molybdenum-, and manganese-containing low alloy steel, is known for strength, resistance to fracturing, abrasion, and impact in high stress applications. AISI 4140 is popular for a wide range of applications, ductile and easily machined in the annealed state. SAE 4140 is commonly used for gears, shafts, spindles, fixtures, bolts, valves, sprockets, pistons, and collars in various high-stress and heavy-duty applications.