|
钢管种类 |
外径(D) |
壁厚(S) |
||
|
冷拔管 |
钢管外径(mm) |
允许偏差(mm) |
钢管壁厚(mm) |
允许偏差(mm) |
|
＞30～50 |
±0.3 |
＞3～20 |
±10％ |
|
力学性能：
|
标准 |
牌号 |
抗拉强度（MPa） |
屈服强度（MPa） |
伸长率（％） |
硬度 |
|
GB3087 |
10 |
335～475 |
≥195 |
≥24 |
/ |
|
20 |
410～550 |
≥245 |
≥20 |
/ |
|
|
GB5310 |
20G |
410～550 |
≥245 |
≥24 |
/ |
|
20MnG |
≥415 |
≥240 |
≥22 |
/ |
|
|
25MnG |
≥485 |
≥275 |
≥20 |
/ |
|
|
15CrMoG |
440～640 |
≥235 |
≥21 |
/ |
|
|
12Cr2MoG |
450～600 |
≥280 |
≥20 |
/ |
|
|
12Cr1MoVG |
470～640 |
≥255 |
≥21 |
/ |
|
|
12Cr2MoWVTiB |
540～735 |
≥345 |
≥18 |
/ |
|
|
10Cr9Mo1VNb |
≥585 |
≥415 |
≥20 |
/ |
|
|
ASME SA210 |
SA210A-1 |
≥415 |
≥255 |
≥30 |
≤143HB |
|
SA210C |
≥485 |
≥275 |
≥30 |
≤179HB |
|
|
ASME SA213 |
SA213 T11 |
≥415 |
≥205 |
≥30 |
≤163HB |
|
SA213 T12 |
≥415 |
≥220 |
≥30 |
≤163HB |
|
|
SA213 T22 |
≥415 |
≥205 |
≥30 |
≤163HB |
|
|
SA213 T23 |
≥510 |
≥400 |
≥20 |
≤220HB |
|
|
SA213 T91 |
≥585 |
≥415 |
≥20 |
≤250HB |
|
|
SA213 T92 |
≥620 |
≥440 |
≥20 |
≤250HB |
|
|
DIN17175 |
ST45.8/Ⅲ |
410～530 |
≥255 |
≥21 |
/ |
|
15Mo3 |
450～600 |
≥270 |
≥22 |
/ |
|
|
13CrMo44 |
440～590 |
≥290 |
≥22 |
/ |
|
|
10CrMo910 |
480～630 |
≥280 |
≥20 |
/ |
化学成分:
|
标准
|
牌号
|
化学成分（％）
|
||||||||||||||
|
C
|
Si
|
Mn
|
P
|
S
|
Cr
|
Mo
|
Cu
|
Ni
|
V
|
Al
|
W
|
Ti
|
Nb
|
N
|
||
|
GB3087
|
10
|
0.07～0.13
|
0.17～0.37
|
0.38～0.65
|
≤0.030
|
≤0.030
|
0.3～0.65
|
/
|
≤0.25
|
≤0.30
|
/
|
/
|
||||
|
20
|
0.17～0.23
|
0.17～0.37
|
0.38～0.65
|
≤0.030
|
≤0.030
|
0.3～0.65
|
/
|
≤0.25
|
≤0.30
|
/
|
/
|
|||||
|
GB5310
|
20G
|
0.17～0.24
|
0.17～0.37
|
0.35～0.65
|
≤0.030
|
≤0.030
|
≤0.25
|
≤0.15
|
≤0.20
|
≤0.25
|
≤0.08
|
|||||
|
20MnG
|
0.17～0.24
|
0.17～0.37
|
0.70～1.00
|
≤0.030
|
≤0.030
|
≤0.25
|
≤0.15
|
≤0.20
|
≤0.25
|
≤0.08
|
||||||
|
25MnG
|
0.18～0.24
|
0.17～0.37
|
0.80～1.10
|
≤0.030
|
≤0.030
|
≤0.25
|
≤0.15
|
≤0.20
|
≤0.25
|
≤0.08
|
||||||
|
15CrMo
|
0.12～0.18
|
0.17～0.37
|
0.40～0.70
|
≤0.030
|
≤0.030
|
0.80～1.10
|
0.40～0.55
|
≤0.20
|
≤0.30
|
|||||||
|
12Cr2MoG
|
0.08～0.15
|
≤0.50
|
0.40～0.70
|
≤0.030
|
≤0.030
|
2.00～2.50
|
0.90～1.20
|
≤0.20
|
≤0.30
|
|||||||
|
12Cr1MoV
|
0.08～0.15
|
0.17～0.37
|
0.40～0.70
|
≤0.030
|
≤0.030
|
0.90～1.20
|
0.25～0.35
|
≤0.20
|
≤0.30
|
0.15～0.30
|
||||||
|
12Cr2MoWVTiB
|
0.08～0.15
|
0.45～0.75
|
0.45～0.65
|
≤0.030
|
≤0.030
|
1.60～2.10
|
0.50～0.65
|
≤0.20
|
≤0.30
|
0.28～0.42
|
0.30～0.55
|
0.08～0.15
|
B 0.002～0.008
|
|||
|
10Cr9Mo1VNb
|
0.08～0.12
|
0.20～0.50
|
0.30～0.60
|
≤0.020
|
≤0.010
|
8.00～9.50
|
0.85～1.05
|
≤0.20
|
≤0.40
|
0.18～0.25
|
≤0.015
|
0.06～0.10
|
0.03～0.07
|
|||
|
ASME SA210
|
SA210A-1
|
0.13～0.19
|
≥0.1
|
0.45～0.65
|
≤0.030
|
≤0.030
|
||||||||||
|
SA210C
|
0.18～0.24
|
≥0.1
|
0.80～1.10
|
≤0.030
|
≤0.030
|
|||||||||||
|
ASME SA213
|
SA213 T11
|
0.05～0.15
|
0.50～1.0
|
0.30～0.60
|
≤0.030
|
≤0.030
|
1.00～1.50
|
0.50～1.00
|
||||||||
|
SA213 T12
|
0.05～0.15
|
≤0.50
|
0.30～0.61
|
≤0.030
|
≤0.030
|
0.80～1.25
|
0.44～0.65
|
|||||||||
|
SA213 T22
|
0.05～0.15
|
≤0.50
|
0.30～0.60
|
≤0.030
|
≤0.010
|
1.90～2.60
|
0.87～1.13
|
|||||||||
|
SA213 T23
|
0.04～0.10
|
≤0.50
|
0.10～0.60
|
≤0.030
|
≤0.030
|
1.90～2.60
|
0.05～0.30
|
≤0.030
|
1.45～1.75
|
B
|
0.02～0.08
|
≤0.040
|
||||
|
SA213 T91
|
0.08～0.12
|
0.20～0.50
|
0.30～0.60
|
≤0.020
|
≤0.010
|
8.00～9.50
|
0.85～1.05
|
≤0.40
|
0.18～0.25
|
≤0.015
|
0.06～0.10
|
0.03～0.07
|
||||
|
SA213 T92
|
0.07～0.13
|
≤0.50
|
0.30～0.60
|
≤0.020
|
≤0.010
|
8.50～9.50
|
0.30～0.60
|
≤0.40
|
0.15～0.25
|
≤0.015
|
1.50～2.00
|
B 0.001～0.006
|
0.04～0.09
|
0.03～0.07
|
||
|
DIN 17175
|
ST45.8/Ⅲ
|
≤0.21
|
0.10～0.35
|
0.40～1.20
|
≤0.040
|
≤0.040
|
||||||||||
|
15Mo3
|
0.12～0.20
|
0.10～0.35
|
0.40～0.80
|
≤0.035
|
≤0.035
|
0.25～0.35
|
||||||||||
|
13CrMo44
|
0.10～0.18
|
0.10～0.35
|
0.40～0.70
|
≤0.035
|
≤0.035
|
0.70～1.10
|
0.45～0.65
|
|||||||||
|
10CrMo910
|
0.08～0.15
|
≤0.50
|
0.30～0.70
|
≤0.025
|
≤0.020
|
2.00～2.50
|
0.90～1.10
|
≤0.30
|
≤0.30
|
≤0.015
|
||||||
