低溫熱交換器管道用無縫鋼管力學性能:
標準
|
牌號
|
抗拉強度
(Mpa)
|
屈服強度
(Mpa)
|
伸長率(%)
|
|
縱向
|
橫向
|
|
|
|
|
GB/T1898
-2003
|
16MnDG
|
490-665
|
≥325
|
≥30
|
--
|
10MnDG
|
≥400
|
≥240
|
≥35
|
--
|
|
09DG
|
≥385
|
≥210
|
≥35
|
--
|
|
09Mn2VDG
|
≥450
|
≥300
|
≥30
|
--
|
|
06Ni3MoDG
|
≥455
|
≥250
|
≥30
|
--
|
|
ASTM A333
|
Grade1
|
≥380
|
≥205
|
≥35
|
≥25
|
Grade3
|
≥450
|
≥240
|
≥30
|
≥20
|
|
Grade4
|
≥415
|
≥240
|
≥30
|
≥16.5
|
|
Grade6
|
≥415
|
≥240
|
≥30
|
≥16.5
|
|
Grade7
|
≥450
|
≥240
|
≥30
|
≥22
|
|
Grade8
|
≥690
|
≥515
|
≥22
|
--
|
|
Grade9
|
≥435
|
≥315
|
≥28
|
--
|
|
Grade10
|
≥550
|
≥450
|
≥22
|
--
|
|
Grade11
|
≥450
|
≥240
|
≥18
|
--
|
|
化學成分:
標準
|
牌號
|
化學成分(%)
|
C
|
Si
|
Mn
|
P
|
S
|
Cr
|
Ni
|
Cu
|
Mo
|
V
|
Al
|
GB/T18984
-2003
|
16MnDG
|
0.12-0.20
|
0.20-0.55
|
1.20-1.60
|
≤0.025
|
≤0.025
|
--
|
--
|
--
|
--
|
--
|
--
|
10MnDG
|
≤0.13
|
0.17-0.37
|
≤1.35
|
≤0.025
|
≤0.025
|
--
|
--
|
--
|
--
|
≤0.07
|
--
|
|
09DG
|
≤0.12
|
0.17-0.37
|
≤0.95
|
≤0.025
|
≤0.025
|
--
|
--
|
--
|
--
|
≤0.07
|
--
|
|
09Mn2VDG
|
≤0.12
|
0.17-0.37
|
≤1.85
|
≤0.025
|
≤0.025
|
--
|
--
|
--
|
--
|
≤0.12
|
--
|
|
06Ni3MoDG
|
≤0.08
|
0.17-0.37
|
≤0.85
|
≤0.025
|
≤0.025
|
--
|
2.5-3.7
|
--
|
0.15-0.30
|
≤0.05
|
--
|
|
ASTM A333
|
Grade1
|
≤0.30
|
--
|
0.40-1.06
|
≤0.025
|
≤0.025
|
--
|
--
|
--
|
--
|
--
|
--
|
Grade3
|
≤0.19
|
0.18-0.37
|
0.31-0.64
|
≤0.025
|
≤0.025
|
--
|
3.18-3.82
|
--
|
--
|
--
|
--
|
|
Grade4
|
≤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
|
|
Grade6
|
≤0.30
|
≥0.10
|
0.29-1.06
|
≤0.025
|
≤0.025
|
--
|
--
|
--
|
--
|
--
|
--
|
|
Grade7
|
≤0.19
|
0.13-0.32
|
≤0.90
|
≤0.025
|
≤0.025
|
--
|
2.03-2.57
|
--
|
--
|
--
|
--
|
|
Grade8
|
≤0.13
|
0.13-0.32
|
≤0.90
|
≤0.025
|
≤0.025
|
--
|
8.40-9.60
|
--
|
--
|
--
|
--
|
|
Grade9
|
≤0.20
|
--
|
0.40-1.06
|
≤0.025
|
≤0.025
|
--
|
1.60-2.24
|
0.75-1.25
|
--
|
--
|
--
|
|
Grade10
|
≤0.20
|
0.10-0.35
|
1.15-1.50
|
≤0.030
|
≤0.015
|
≤0.15
|
≤0.25
|
≤0.015
|
≤0.50
|
≤0.12
|
≤0.06
|
|
Grade11
|
≤0.10
|
≤0.035
|
≤0.60
|
≤0.025
|
≤0.025
|
≤0.50
|
35.0-37.0
|
--
|
≤0.50
|
--
|
--
|
|
低溫管理論重量計算公式:(外徑-壁厚)×壁厚×0.02466=KG/M(每米的重量)
|