SGS factory directly supply 3 inch round metal balls for bearing

Balls: (Chrome Steel) (52100) (GCr100)                                                                                         

Material

Size Range

Grade

Chrome

3/16 - 1” (4.762mm - 25.4mm)

10 - 48

Chrome

1 - 2 3/4” (25.4mm - 69.85mm)

24 - 48

Chrome

1/8 - 5” (3.175mm - 127.0mm)

100 - 1000

Chrome

1/16 - 6” (1.587mm - 152.4mm)

5 -1000 (Special Sizes)

Material

CDA

Federal

Military

ASTM

Chrome Steel

52100

QQ-S-624b
FED STD66b
E 52100

MIL-S 980A(-1)
MIL-B 1083C

A295-46T
TYPE A

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
Chrome 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