Chemical composition: ( % )

C	Si	Mn	Mo	S \P	Ni\ Cu	Cr
0.38-0.45	0.15-0.40	0.60-0.90	0.15-0.30	0.035	0.030	0.90-1.20

Hardening Temp : 820 - 850 C

Ouenching Medium : Oil

Hardness as Supplied :

It's mainly used for making various kinds of machinery, automobile, mining spare part, the gearwheel of the engine, the driving gear of supercharger, the abckshaft, the conncetingrob and the pinchock under the high pressure. Parts for power train applications, cold formed fastener components, shafts, gears, drill collars for the oil exploration, etc.