100CrMnMoSi 8-4-6 B8 - ASTM A485-2017

Grade	100CrMnMoSi 8-4-6
Other Names
Corresponding Standard	ASTM A485-2017 High Hardenability Antifriction Bearing Steel
Classification	Bearing Steel
Properties	High Hardness Fatigue Resistance High Hardenability

100CrMnMoSi 8-4-6 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Cu	Mo	Al	O
Minimum Value	0.93	0.4	0.8	-	-	1.8	-	0.5	-	-
Maximum Value	1.05	0.6	1.1	0.025	0.015	2.05	0.3	0.6	0.05	0.0015

100CrMnMoSi 8-4-6 Mechanical Properties

condition	Heat Treatment or Condition	Hardness HBW
Bars, rebar, pipes	Annealed, Cold Drawn	≤260
Bars, pipes	Hot Rolling, Annealing	≤217
Rebars	Annealing, Cold Drawing (Stress Relief)	HRB ≤92
Rebars	Hot Rolling, Annealing	≤97

100CrMnMoSi8-4-6 Corresponding Standards(Same grade name, different standards)

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