100CrMo 7-4 B7 - ASTM A485-2017(R2022)

Grade	100CrMo 7-4
Other Names
Corresponding Standard	ASTM A485-2017(R2022) High Hardenability Antifriction Bearing Steel
Classification	Bearing Steel
Properties	High Hardness Fatigue Resistance High Hardenability

100CrMo 7-4 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Cu	Mo	Al	O
Minimum Value	0.93	0.15	0.6	-	-	1.65	-	0.4	-	-
Maximum Value	1.05	0.35	0.8	0.025	0.015	1.95	0.3	0.5	0.05	0.0015

Note 1: Elements not quoted shall not be intentionally added to the steel without the agreement of the purchaser.
Note 2: Intentional additions of calcium or calcium alloys for deoxidation or inclusion shape control are not permitted unless specifically approved by the purchaser.
Note 3: Oxygen content applies to product analysis and shall be determined in accordance with Test Methods E1019.

① Steels listed as ISO meet the requirements of ISO 683, Part 17, Third Edition, Table 3.
② A maximum titanium content may be agreed upon at the time of inquiry and order.

100CrMo 7-4 Mechanical Properties

condition	Heat Treatment or Condition	Hardness HBW
Bars, rebar, pipes	Annealed, Cold Drawn①	≤260
Bars, pipes	Hot Rolling, Annealing	≤217
Rebars	Annealing, Cold Drawing (Stress Relief)	HRB ≤92
Rebars	Hot Rolling, Annealing	≤97

100CrMo7-4 Corresponding Standards(Same grade name, different standards)

1	ISO 683-17-2014
	100CrMo 7-4
2	ASTM A485-2017
	100CrMo 7-4 B7
3	DIN EN ISO 683-17-2015
	100CrMo 7-4 1.3538
4	ASTM A485-2017(R2022)
	100CrMo 7-4 B7

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!