|
C
|
Si
|
Mn
|
P
|
S
|
Cr
|
Mo
|
Cu
|
Ni
|
ASTM A106 A
|
≤0.25
|
≥0.10
|
0.27~0.93
|
≤0.035
|
≤0.035
|
≤0.40
|
≤0.15
|
≤0.40
|
≤0.40
|
ASTM A106B
|
≤0.30
|
≥0.10
|
0.29~1.06
|
≤0.035
|
≤0.035
|
≤0.40
|
≤0.15
|
≤0.40
|
≤0.40
|
ASTM A106C
|
≤0.35
|
≥0.10
|
0.29~1.06
|
≤0.35
|
≤0.35
|
≤0.40
|
≤0.15
|
≤0.40
|
≤0.40
|