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  SA106C high pressure thick wal
  SA333ⅠThick wall steel tube
  SA333Ⅵ Thick wall high pressur
  SA335 P11 High presure thick w
  SA335 P12 Thick wall steel tub
  SA335 P22 Thick wall steel tub
  SA335 P5 Thick wall steel tube
  SA335 P91 Thick wall steel tub
  SA335 P92 Thick wall steel tub
  ST45.8/Ⅲ Thick wall steel tube
  15Mo3 Forged thick wall steel
  13CrMo44 Forged thick wall ste
  10CrMo910 Forged thick wall st
  15NiCuMoNb5-6-4(WB36)Thick wal
  A312TP304 Thick wall steel tub
  A312TP316 Thick wall steel tub
  21CrMo10 Thick wall steel tube
  10Cr9Mo1VNb Thick wall steel t
  12Cr1MoV Thick wall steel tube
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   20MnG High pressure thick wall forged tube


20MnG Forged thick wall high pressure big diameter steel tube  
厚壁高压大口径锻造无缝管20MnG
TE PRESSURE) BOILER AND PETROCHEMICAL INDUSTRY
 标准 Standard :
GB3087 —— 中国国家标准 Chinese standard
GB5310 —— 中国国家标准 Chinese standard
ASME SA106 —— 美国锅炉及压力容器规范 
ASME SA333 —— 美国锅炉及压力容器规范
ASME SA335 —— 美国锅炉及压力容器规范 Boiler and pressure vessel specification of USA
DIN17175 —— 联邦德国工业标准
EN10216-2 —— 欧洲压力管道标准European standard of pressure pipeline.
用途 Application :
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)的集箱及蒸汽管道;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)的集箱及蒸汽管道,石化工业,核电,军工,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℃).
主要生产钢管牌号 Main steel grades:
10、20、20G、20MnG、25MnG、15CrMoG、12Cr2MoG、12Cr1MoVG、10Cr9Mo1VNb、SA106B、SA106C、SA333Ⅰ级、SA333Ⅵ级、SA335 P5、SA335 P11、SA335 P12、SA335P22、SA335 P91、SA335 P92、ST45.8/Ⅲ、15Mo3、13CrMo44、10CrMo910、15NiCuMoNb5-6-4 etc.
类型 TYPE 外径OD 壁厚Wall thickness(S)  
钢管外径(mm) 允许偏差(mm) 钢管壁厚(mm) 允许偏差(mm) 长度Length M
热轧管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
挤压管Hot extruded tube 200-1320 ±0.9% 18-220 -6%,+8% 4-12
锻造管 Hot forged tube 140-650 ±0.9% 50-250 -6%,+8% 3-19
化学成分 Chemical compostion :
标准Standard 牌号 Grade 化学成分 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级 0.09~0.12 / 0.7~1.00 ≤0.020 ≤0.010                  
SA333Ⅵ级 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      
力学性能 Mechanical propeties:
标准Standard 牌号 Grade 抗拉强度Tensile(MPa) 屈服强度 Yeild(MPa) 伸长率 Elongation (%) 冲击功 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级 ≥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    
生产工艺流程 producing process flow :

设备EQUIPMENTS:

应用领域 application fields:

 


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