高压（低中压）锅炉及石化工业用小口径无缝钢管
标准：
GB3087 —— 中国国家标准
GB5310 —— 中国国家标准
ASME SA210 —— 美国锅炉及压力容器规范
ASME SA213 —— 美国锅炉及压力容器规范
DIN17175 —— 联邦德国工业标准
用途：
用于低中压锅炉（工作压力一般不大于5.88Mpa，工作温度在450℃以下）的受热面管子；用于高压锅炉（工作压力一般在9.8Mpa以上，工作温度在450℃～650℃之间）的受热面管子、省煤器、过热器、再热器、石化工业用管等。
主要生产钢管牌号：
10、20、20G、20MnG、25MnG、15CrMoG、12Cr2MoG、12Cr1MoVG、12Cr2MoWVTiB、10Cr9Mo1VNb、SA210A1、SA210C、SA213 T11、SA213 T12、SA213 T22、SA213 T23、SA213 T91、SA213 T92、ST45.8/Ⅲ、15Mo3、13CrMo44、10CrMo910等
尺寸公差:
|
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
|
B0.0005～0.006
|
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
|
|
|
