MATERIAL

CHEMISTRY

HEAT TREATMENT DETAILS

AISI/
ASTM

EN

DIN

JIS

C

SI

Mn

P

S

Cr

W

Mo

V

Soft Anealing 

Normalizing

Hardening Water/Oil 

Tempering 

Annealed
(HB) - Max

Quenched
(Hrc) Tempered

SAE 52100

1.3505

0.95 

0.3

0.3

0.025 

0.025

1.3 

780-800

K310 

1.2327 

0.95 

 0.1 

0.21

0.018

0.009

1.97 

0.09 

BALL BEARING STEEL 

AISI

DIN

Supply Condition

Rounds

Square

Flat

Application

SAE 52100 

1.3505

Annealed 

5 - 800 

20X90 - 40X600

Rolls for Cold Rolling (Stainless, Brass, Aluminium, Copper) Coils Strips & Patta Mills. Bearing & Bearing Material. Punching & Trimming Dies 

K310 

1.2327 

Annealed 

100 - 800 

Rolls for Cold Rolling (Stainless, Brass, Aluminium, Copper) Coils Patti & Patta Mills. Bearing & Bearing Material.