低中壓鍋爐及石化工業(yè)用大口徑無縫鋼管
鋼管種類
外徑(D)
壁厚(S)
冷拔管
鋼管外徑(mm)
允許偏差(mm)
鋼管壁厚(mm)
允許偏差(mm)
>30~50
±0.3
>3~20
±10%
標(biāo)準(zhǔn):
GB3087 —— 中國國家標(biāo)準(zhǔn)
GB5310 —— 中國國家標(biāo)準(zhǔn)
ASME SA210 —— 美國鍋爐及壓力容器規(guī)范
ASME SA213 —— 美國鍋爐及壓力容器規(guī)范
DIN17175 —— 聯(lián)邦德國工業(yè)標(biāo)準(zhǔn)
用途:
用于低中壓鍋爐(工作壓力一般不大于5.88Mpa,工作溫度在450℃以下)的受熱面管子;用于高壓鍋爐(工作壓力一般在9.8Mpa以上,工作溫度在450℃~650℃之間)的受熱面管子、省煤器、過熱器、再熱器、石化工業(yè)用管等。
主要生產(chǎn)鋼管牌號(hào):
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:
力學(xué)性能:
標(biāo)準(zhǔn) |
牌號(hào) |
抗拉強(qiáng)度(MPa) |
屈服強(qiáng)度(MPa) |
伸長率(%) |
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 |
/ |
化學(xué)成分:
標(biāo)準(zhǔn)
牌號(hào)
化學(xué)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
0.0005~0.006
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