100CrMnSi 4-4 B2 - ASTM A485-2017

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

100CrMnSi 4-4 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Cu	Mo	Al	O
Minimum Value	0.93	0.45	0.9	-	-	0.9	-	-	-	-
Maximum Value	1.05	0.75	1.2	0.025	0.015	1.2	0.3	0.1	0.05	0.0015

100CrMnSi 4-4 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

100CrMnSi4-4 Corresponding Standards(Same grade name, different standards)

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