ASTM Standards For Bearing Steels

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ISO 683 part 17 specifies the Heat-Treated steels´╝îalloy steels and free-cutting steels- Ball and roller bearing steels. According to the heat treatment and application, the standard divides bearing steels into five categories: fully quenched bearing steels, surface quenched bearing steels, induction quenched bearing steels, stainless bearing steels and high-temperature bearing steels. British, French and German bearing steel standards are all equivalent to ISO 683-17. While the American standard classified the bearing steel as: high carbon anti-wear bearing steel ASTM A295 / A295-14, high hardenability anti-wear bearing steel ASTM A485-17, carburized anti-wear bearing steel ASTM A534-17, stainless anti-wear bearing steel ASTM A756-17 and medium carbon anti-wear bearing steel ASTM A866-14.


ASTM Bearing Steel Standards

Standards

Type

Materials

ASTM   A295

High   carbon anti-friction bearing steel

52100

5195  

5090M

1070M

5160

ASTM   A485

High   hardenability anti-friction bearing steel

Gr1

Gr2  

Gr3  

Gr4

100CrMnSi4

100CrMnSi6   100CrMoSi7

100CrMnMoSi8-4-6

ASTM   A756

Stainless   anti-friction bearing steel

440C

X30CrMnN15   

X47Cr14

X65Cr14  

X108CrMo17   X89CrMoV18

ASTM   A534

Carburized   anti-friction bearing steel

4118H,   4320H, 4620H, 4720H, 4817H, 4820H, 5120H, 8617H, 8620H, 9310H,

20Cr3H,  

17MnCr5H,  

ASTM   A866

Medium   carbon anti-friction bearing steel

1030,   1040, 1050, 1541, 1552, 4130, 4140, 4150, 5140, 5150, 6150, 56Mn4,

43CrMo4