Bearing steel chrome steel
 

Spec. Nr.

Indication

C

S1

Mn

P

S

Cr

Ni

Mo

China YJZ-84
GCr15
0.95-1.05

0.15-0.35

0.20-0.40

≤0.027

≤0.02

1.30-1.65
≤0.025
-

Korea KS D 3525
STB 2
0.95-1.10

0.15-0.35

≤0.50

≤0.025

≤0.025

1.30-1.60
≤0.25
≤0.08

STB 3
0.95-1.10

0.40-0.70

0.9-1.15

≤0.025

≤0.025

0.90-1.20
≤0.25
≤0.08
STB 4

0.95-1.10

0.15-0.35

≤0.50

≤0.025

≤0.025

1.30-1.60

≤0.25
0.10-0.25

Japan JIS G 4805
SW 1
0.95-1.10

0.15-0.35

≤0.50

≤0.025

≤0.025

0.90-1.20
≤0.25
≤0.08

SW 2
0.95-1.10

0.15-0.35

≤0.50

≤0.025

≤0.025

1.30-1.60
≤0.25
≤0.08
SW 3

0.95-1.10

0.40-0.70

0.90-1.15

≤0.025

≤0.025

-.90-1.20

≤0.25
≤0.08
SW 4
0.95-1.10

0.15-0.35

≤0.50

≤0.025

≤0.025

1.30-1.60

≤0.25
0.10-0.25

SW 5
0.95-1.10

0.40-0.70

0.90-1.15

≤0.025

≤0.025

0.90-1.20

≤0.25

0.10-0.25

U.S.A. AISI SAE J 405
E 51100

0.98-1.10

0.20-0.35

0.25-0.45

≤0.025

≤0.025

0.90-1.15

≤0.25

≤0.08
E 52100
0.98-1.10

0.20-0.35

0.25-0.45

≤0.025

≤0.025

1.30-1.60

≤0.25
≤0.08

German VDEH
105 Cr 2
1.00-1.10

0.15-0.35

0.25-0.40

≤0.030

≤0.025

0.40-0.60

-
-

105 Cr 4
1.00-1.10

0.15-0.35

0.25-0.40

≤0.030

≤0.025

0.90-1.15

-
-
100 Cr 6

0.90-1.05

0.15-0.35

0.25-0.40

≤0.025

≤0.020

1.40-1.65

-
-
100 CrMn 6
0.90-1.05

0.50-0.70

1.00-1.20

≤0.025

≤0.020

1.40-1.65

-
-