Material

CDA

Federal

Military

ASTM

UNS

AMS

Bearing Steel

52100

QQ-S-624b
FED STD66b
E 52100

MIL-S 980A(-1)
MIL-B 1083C

A295-46T
TYPE A

6440E
G-52986

-MS 19059
7440(52100)

Chemical Analysis:

Carbon.............................

0.98% to 1.05%

Chromium.........................

1.30% to 1.60%

Manganese.......................

0.25% to 0.45%

Silicon..............................

0.15% to 0.35%

Sulphur............................

0.008% maximum

Phosphorus......................

0.020% maximum

Mechanical Properties
Bearing steel balls are uniformly hardened and tempered throughout their entire diameter to achieve maximum strength

 and quality. 

Ball hardness is controlled within the 60-67 HRC 

range as measured on parallel flat surfaces. Custom heat treating is available for special hardness and dimensional stability

 requirements.

Tensile Strength...............................

325,000 psi

Yield Strength..................................

295,000 psi

Elongation in two inches...................

5%

Reduction in area.............................

8%

Modulus of elasticity........................

29,500,000 psi

Density...........................................

0.283 lbs./cu. in.

Consumable electrode vacuum melted (CEVM) available upon request

Usages-  Chrome Steel Ball Bearing Balls G10-G1000