|
牌號
GB/T 1591 |
相似牌號
|
化學成分(%)
|
|||||||||
|
ASTM
A529M |
JIS
G3135 |
DIN
10025 |
C
|
Mn
|
Si
|
Nb
|
V
|
P
|
S
|
Ti
|
|
|
≤
|
|||||||||||
|
Q295A
|
Gr。42
|
SPFC490
|
E295
|
≤0.16
|
0.80-1.50
|
≤0.55
|
0.015-0.060
|
0.02-0.15
|
0.045
|
0.045
|
0.02-0.20
|
|
Q345A
|
Gr。50
|
SPFC590
|
E335
|
≤0.20
|
1.00-1.60
|
≤0.55
|
0.015-0.060
|
0.02-0.15
|
0.045
|
0.045
|
0.02-0.20
|
|
Q390A
|
|
SYKT540
|
|
≤0.20
|
1.00-1.60
|
≤0.55
|
0.015-0.060
|
0.02-0.15
|
≤0.05
|
≤0.05
|
0.02-0.20
|
|
Q420A
|
Gr。60
|
|
|
≤0.20
|
1.00-1.70
|
≤0.55
|
0.015-0.060
|
0.02-0.15
|
≤0.05
|
≤0.05
|
0.02-0.20
|