A333低温管化学成分/牌号区分/标准/低温合金管的知识
|
标准
|
牌号
|
化学成分（％）
|
|
C
|
Si
|
Mn
|
P
|
S
|
Cr
|
Ni
|
Cu
|
Mo
|
V
|
Al
|
|
ASTM
A333低温合金管
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Grade 1
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≤0.30
|
|
0.40-1.06
|
≤0.025
|
≤0.025
|
|
|
|
|
|
|
|
Grade 3
|
≤0.19
|
0.18-0.37
|
0.31-0.64
|
≤0.025
|
≤0.025
|
|
3.18-3.82
|
|
|
|
|
|
Grade 4
|
≤0.12
|
0.18-0.37
|
0.50-1.05
|
≤0.025
|
≤0.025
|
0.44-1.01
|
0.47-0.98
|
0.40-0.75
|
|
|
0.04-0.30
|
|
Grade 6
|
≤0.30
|
≥0.10
|
0.29-1.06
|
≤0.025
|
≤0.025
|
|
|
|
|
|
|
|
Grade 7
|
≤0.19
|
0.13-0.32
|
≤0.90
|
≤0.025
|
≤0.025
|
|
2.03-2.57
|
|
|
|
|
|
Grade 8
|
≤0.13
|
0.13-0.32
|
≤0.90
|
≤0.025
|
≤0.025
|
|
8.40-9.60
|
|
|
|
|
|
Grade 9
|
≤0.20
|
|
0.40-1.06
|
≤0.025
|
≤0.025
|
|
1.60-2.24
|
0.75-1.25
|
|
|
|
|
Grade 10
|
≤0.20
|
0.10-0.35
|
1.15-1.50
|
≤0.03
|
≤0.015
|
≤0.15
|
≤0.25
|
≤0.015
|
≤0.50
|
≤0.12
|
≤0.06
|
|
Grade 11
|
≤0.10
|
≤0.35
|
≤0.6
|
≤0.025
|
≤0.025
|
≤0.50
|
35.0-37.0
|
|
≤0.50
|
|
