25MnG Forged thick wall high pressure big diameter steel tube
25MnG 厚壁高壓大口徑鍛造無縫管
高壓（低中壓）鍋爐及石化工業用大口徑無縫鋼管
BIG DIAMETER SEAMLESS STEEL TUBE USED FOR HIGH PRESSURE (LOW/INTERMEDIATE PRESSURE) BOILER AND PETROCHEMICAL INDUSTRY
標準 Standard ：
GB3087 —— 中國國家標準 Chinese standard
GB5310 —— 中國國家標準 Chinese standard
ASME SA106 —— 美國鍋爐及壓力容器規范
ASME SA333 —— 美國鍋爐及壓力容器規范
ASME SA335 —— 美國鍋爐及壓力容器規范 Boiler and pressure vessel specification of USA
DIN17175 —— 聯邦德國工業標準
EN10216-2 —— 歐洲壓力管道標準European standard of pressure pipeline.
用途 Application ：
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）的集箱及蒸汽管道；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）的集箱及蒸汽管道，石化工業,核電，軍工，海洋工程用管。
Used for steam pipeline of low medium pressure boiler(working pressure is generally not more than 5.88Mpa. Working temperature below 450℃). Used for steam pipeline of high pressure boiler，petrochemical industry ,nuclear power,military industry and ocean engineering etc.(working pressure is generally above 9.8Mpa, working temperature between 450℃～650℃).
主要生產鋼管牌號 Main steel grades：
10、20、20G、20MnG、25MnG、15CrMoG、12Cr2MoG、12Cr1MoVG、10Cr9Mo1VNb、SA106B、SA106C、SA333Ⅰ級、SA333Ⅵ級、SA335 P5、SA335 P11、SA335 P12、SA335P22、SA335 P91、SA335 P92、ST45.8/Ⅲ、15Mo3、13CrMo44、10CrMo910、15NiCuMoNb5-6-4 etc.
|
類型 TYPE |
外徑OD |
壁厚Wall thickness（S） |
|
|
鋼管外徑(mm) |
允許偏差(mm) |
鋼管壁厚(mm) |
允許偏差(mm) |
長度Length M |
|
熱軋管Hot rolled tube |
＞219～457 |
±1.0％ |
≤20 |
－10％，＋12.5％ |
6-12.2 |
|
＞20～40 |
－10％，＋10％ |
6-12.2 |
|
＞457～1066 |
±0.9％ |
＞40～70 |
－7％，＋9％ |
6-12.2 |
|
＞70～120 |
－6％，＋8％ |
6-12.2 |
|
擠壓管Hot extruded tube |
200-1320 |
±0.9％ |
18-220 |
－6％，＋8％ |
4-12 |
|
鍛造管 Hot forged tube |
140-650 |
±0.9％ |
50-250 |
－6％，＋8％ |
3-19 |
化學成分 Chemical compostion :
|
標準Standard |
牌號 Grade |
化學成分 Chemical composition （％） |
|
C |
Si |
Mn |
P |
S |
Cr |
Mo |
Cu |
Ni |
V |
Al |
W |
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 |
0.17～0.25 |
0.17～0.37 |
0.70～1.00 |
≤0.030 |
≤0.030 |
≤0.25 |
≤0.15 |
≤0.20 |
≤0.25 |
≤0.08 |
|
|
|
|
|
25MnG |
0.23～0.27 |
0.17～0.37 |
0.70～1.00 |
≤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 |
|
|
|
|
|
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 SA106 |
SA106B |
0.17～0.25 |
≥0.1 |
0.70～1.00 |
≤0.030 |
≤0.030 |
|
|
|
|
|
|
|
|
|
|
ASME SA106 |
SA106C |
0.23～0.27 |
≥0.1 |
0.70～1.00 |
≤0.030 |
≤0.030 |
|
|
|
|
|
|
|
|
|
|
ASME SA333 |
SA333Ⅰ級 |
0.09～0.12 |
/ |
0.7～1.00 |
≤0.020 |
≤0.010 |
|
|
|
|
|
|
|
|
|
|
SA333Ⅵ級 |
0.09～0.12 |
≥0.1 |
0.9～1.10 |
≤0.020 |
≤0.010 |
|
|
|
|
|
|
|
|
|
|
ASME SA335 |
SA335 P11 |
0.05～0.15 |
0.50～1.0 |
0.30～0.60 |
≤0.030 |
≤0.030 |
1.00～1.50 |
0.50～1.00 |
|
|
|
|
|
|
|
|
|
SA335 P12 |
0.05～0.15 |
≤0.50 |
0.30～0.61 |
≤0.030 |
≤0.030 |
0.80～1.25 |
0.44～0.65 |
|
|
|
|
|
|
|
|
|
SA335 P22 |
0.05～0.15 |
≤0.50 |
0.30～0.60 |
≤0.030 |
≤0.030 |
1.90～2.60 |
0.87～1.13 |
|
|
|
|
|
|
|
|
|
SA335 P5 |
≤0.15 |
≤0.50 |
0.30～0.60 |
≤0.030 |
≤0.030 |
4.00/6.00 |
0.45/0.65 |
|
|
|
|
|
|
|
|
|
SA335 P91 |
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 |
|
|
SA335 P92 |
0.07～0.13 |
≤0.50 |
0.30～0.60 |
≤0.020 |
≤0.010 |
8.50～9.50 |
0.30～0.60 |
0.30～0.60 |
≤0.40 |
0.15～0.25 |
≤0.015 |
1.50～2.00 |
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 |
≤0.30 |
|
|
|
|
|
|
|
|
|
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 |
|
|
|
力學性能 Mechanical propeties：
|
標準Standard |
牌號 Grade |
抗拉強度Tensile（MPa） |
屈服強度 Yeild（MPa） |
伸長率 Elongation （％） |
沖擊功 Impact （J） |
硬度 Hardness |
|
GB3087 |
10 |
335～475 |
≥195 |
≥24 |
|
/ |
|
20 |
410～550 |
≥245 |
≥20 |
|
/ |
|
GB5310 |
20G |
410～550 |
≥245 |
≥24 |
≥35 |
/ |
|
20MnG |
≥415 |
≥240 |
≥22 |
≥35 |
/ |
|
25MnG |
≥485 |
≥275 |
≥20 |
≥35 |
/ |
|
15CrMoG |
440～640 |
≥235 |
≥21 |
≥35 |
/ |
|
12Cr2MoG |
450～600 |
≥280 |
≥20 |
≥35 |
/ |
|
12Cr1MoVG |
470～640 |
≥255 |
≥21 |
≥35 |
/ |
|
10Cr9Mo1VNb |
≥585 |
≥415 |
≥20 |
≥35 |
/ |
|
ASME SA106 |
SA106B |
≥415 |
≥240 |
≥22 |
≥35 |
/ |
|
SA106C |
≥485 |
≥275 |
≥20 |
≥35 |
/ |
|
ASME SA333 |
SA333Ⅰ級 |
≥380 |
≥205 |
≥28 |
－45≥18 |
/ |
|
ASME SA335 |
SA335 P11 |
≥415 |
≥205 |
≥22 |
≥35 |
|
|
|
SA335 P12 |
≥415 |
≥220 |
≥22 |
≥35 |
≤163HB |
|
|
SA335 P22 |
≥415 |
≥205 |
≥22 |
≥35 |
≤163HB |
|
|
SA335 P5 |
≥415 |
≥205 |
≥22 |
≥35 |
≤187HB |
|
|
SA335 P91 |
585～760 |
≥415 |
≥20 |
≥35 |
≤250HB |
|
|
SA335 P92 |
≥620 |
≥440 |
≥20 |
≥35 |
250HB |
|
DIN17175 |
ST45.8/Ⅲ |
410～530 |
≥255 |
≥21 |
≥27(DVM) |
/ |
|
15Mo3 |
450～600 |
≥270 |
≥22 |
≥34(DVM) |
/ |
|
13CrMo44 |
440～590 |
≥290 |
≥22 |
≥34(DVM) |
/ |
|
10CrMo910 |
480～630 |
≥280 |
≥20 |
≥34(DVM) |
/ |
|
EN10216-2 |
15NiCuMoNb5-6-4 (WB36) |
610～780 |
≥440 |
≥19 |
≥40 |
/ |
|
|
A312TP304 |
≥515 |
≥205 |
35 |
|
|
|
|
A312TP316 |
≥515 |
≥205 |
35 |
|
|
|
|
21CrMo10 |
≥515 |
≥205 |
35 |
|
|
生產工藝流程 producing process flow :
設備EQUIPMENTS:
應用領域 application fields:
