Engineering steels

Engineering steels cover a wide variety of steels that are generally heat treated to produce high strength leels of 750Mpa and above. Typical applications include automotive engine and transmission components, bearings, rails, machine tools and wire ropes. Although engineering steels iclude carbon-manganese compositions(with high carbon content), most contain small to large additions of other alloy elements, such as Cr, Ni, V, Mo, W, etc. Typical grades like 1020, 1045, 1055, 4130, 4140/42CrMo4, 4145H, 4340/34CrNiMo6, 8620H, 16-20MnCr5, etc.