Componen:

C碳 Si硅 Mn锰 Cr铬 Mo钼 V钒 S硫 W钨
(％)
0.9 0.6 1.2 - - - - 0.55

Uses:
With good property of mechanical machining, it is used to make shaving, punching, cutting, molding, small-pressing dies, pinion, piston, nozzle, came and so on.