hardness of chrome steel-www.tengdabearings.com

Chrome steel is very strict quality required steel. Present request for chrome steel : Free process and free inspection, to improve quality, specification refinement and improved dimensional accuracy, etc. Furthermore, the degree of importance of these requirements is increasingly high.
Chemical component of chrome steel:

Steel grade	C	Si	Mn	P	S	Cr	Ni
GCr15	0.95-1.05	0.15-0.35	0.25-0.45	≤0.025	≤0.0.25	1.40-1.65	≤0.3
GCr15SiMn	0.95-1.05	0.45-0.75	0.95-1.25	≤0.025	≤0.025	1.40-1.65	≤0.3

Useage:
GCr15: used for internal combustion engines, motor vehicles, machine tools, tractors, steel rolling machine, drilling machine, mine general machinery, as well as high-speed rotation, high load mechanical shaft ball, roller and sleeve.
GCr15SiMn: as a heavy-duty machine tools, large machinery and rolling mill no large impact load bearing.

FAG HCS71916C.T.P4S.UL| FAG HCS71913E.T.P4S.UL | FAG HCS71914C.T.P4S.UL | FAG HCS71912E.T.P4S.UL | FAG HCS71911E.T.P4S.UL | FAG HCS7010C.T.P4S.UL | FAG HCS71906E.T.P4S.UL | FAG HCS7008C.T.P4S.UL | FAG HCS71906C.T.P4S.UL | FAG HCS71905E.T.P4S.UL