国标GB

各国标准 

C

Mn

Si

Cr

Ni

S

P

Cu

GB ER49-1 

≤0.11 

1.80~2.10 

0.65~0.95 

≤0.20 

≤0.30 

≤0.03 

≤0.03 

≤0.50 

GB ER50-3 

AWS ER70S-3

JIS  YGW16 

0.06~0.15 

0.90~1.40 

0.45~0.75 

≤0.035 

≤0.025 

≤0.50

GB ER50-4

AWS ER70S-4
  JIS  YGW12

0.07~0.15

1.0~1.5

0.65~0.85

≤0.035

≤0.025

≤0.50

GB ER50-6

AWS ER70S-6
   JIS  YGW12

0.06~0.15

0.06~0.15

0.06~0.15

≤0.035

≤0.025

≤0.50