详细介绍: ASTM A333 GR.6低温管和焊接低温钢管对应国标什么材质
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ASTM A333 GR.6低温管和焊接低温钢管
标准
ASTM A333——Seamless and Welded Steel Pipe for Low-Temperature Service
主要生产钢管牌号
Grade 1, Grade 3, Grade 4, Grade 6, Grade 7, Grade 8, Grade 9, Grade 10, Grade 11
冲击温度
级别
|
最低冲击试验温度
|
℉
|
℃
|
Grade 1
|
-50
|
-45
|
Grade 3
|
-150
|
-100
|
Grade 4
|
-150
|
-100
|
Grade 6
|
-50
|
-45
|
Grade 7
|
-100
|
-75
|
Grade 8
|
-320
|
-195
|
Grade 9
|
-100
|
-75
|
Grade 10
|
-75
|
-60
|
力学性能
标准
|
牌号
|
抗拉强度(MPa)
|
屈服强度(MPa)
|
伸长率(%)
|
纵 向
|
横 向
|
ASTM
A333
|
Grade 1
|
≥380
|
≥205
|
≥35
|
≥25
|
Grade 3
|
≥450
|
≥240
|
≥30
|
≥20
|
Grade 4
|
≥415
|
≥240
|
≥30
|
≥16.5
|
Grade 6
|
≥415
|
≥240
|
≥30
|
≥16.5
|
Grade 7
|
≥450
|
≥240
|
≥30
|
≥22
|
Grade 8
|
≥690
|
≥515
|
≥22
|
|
Grade 9
|
≥435
|
≥315
|
≥28
|
|
Grade 10
|
≥550
|
≥450
|
≥22
|
|
Grade 11
|
≥450
|
≥240
|
≥18
|
|
化学成分
标准
|
牌号
|
化学成分(%)
|
C
|
Si
|
Mn
|
P
|
S
|
Cr
|
Ni
|
Cu
|
Mo
|
V
|
Al
|
ASTM
A333
|
Grade 1
|
≤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
|
|
|
|