牌号

标准

化学成分（质量分数％）

C

Si

Mn

Cr

Mo

Ni≤

Cu≤

P≤

S≤

GCr4

GB/T 18254-2002

0.95~1.05

0.15~0.30

0.15~0.30

0.35~0.50

≤0.08

0.25

0.30

0.025

0.020

GCr15

0.95~1.05

0.15~0.35

0.25~0.45

1.04~1.65

≤0.10

0.30

0.25

0.025

0.025

GCr15SiMn

0.95~1.05

0.45~0.75

0.95~1.25

1.40~1.65

≤0.10

0.30

0.25

0.025.0.025

GCr15SiMo

0.95~1.05

0.65~0.85

0.20~0.40

1.40~1.70

0.30~0.40

0.30

0.25

0.27~0.020

GCr18Mo

0.95~1.05

0.20~0.40

0.25~0.40

1.65~1.95