油气开采中应用的管道

面对发展深水和特深油井的挑战，还有在不断酸化以及高温高压的环境，针对钻探，生产和注射用管我们设计了一套油井管材系列产品。

核心制造过程遵循API 5LC & API 5CRA 质量认证标准，并结合广泛的客户专业认证和授权，产品质量完全值得客户信赖。

我们完整的生产工艺确保覆盖所有的生产环节，从退火条件到经过冷轧或冷拔整个过程，最大限度的完善耐腐蚀性能和机械性能。

MST designationUNS numberMaterial Identity ISO 13680
GroupStructureCategory
DMV 22.5S318032Duplex22-5-3
DMV 25.7S312602Duplex25-7-3
DMV 25.7NS327602Super Duplex25-7-4
DMV 928N080283Austenitic Ni base27-31-4
DMV 825N088254Austenitic Ni base21-42-3
DMV G3N069854Austenitic Ni base22-50-7
DMV C276N102764Austenitic Ni base15-60-16
MST designationUNS numberMaterial Identity ISO 13680GradeDelivery condition
GroupStructureCategory  
DMV 22.5S318032Duplex22-5-365SA
110CH
     125CH
140CH
DMV 25.7S312602Super Duplex25-7-375SA
110CH
     125CH
140CH
DMV 25.7NS327602SuperDuplex25-7-480SA
125CH
     140CH
SA = Solution annealed
CH = Cold hardened
MST designationUNS numberMaterial Identity ISO 13680GradeDelivery condition
GroupStructureCategory  
DMV 928N080283Austenitic Ni base27-31-4110CH
125CH
DMV 825N088254Austenitic Ni-base21-42-3110CH
120CH
DMV G3N069854Austenitic Ni-base22-50-7110CH
125CH
DMV C276N102764Austenitic Ni-base15-60-16125CH
CH = Cold hardened
MST designationTypical chemical composition 1)
CmaxSimaxMnmaxNiPmaxSmaxCrMoWNFeTiCuOthersPREN
DMV 22.5 0.03 1.0 2.04.5 - 6.5 0.03 0.0221.0 - 23.02.5 - 3.50.08 - 0.2Bal.35 min
DMV 25.7 0.03 0.75 1.05.5 - 7.5 0.03 0.0324.0 - 26.02.5 - 3.50.10 - 0.500.1 - 0.3Bal. 0.2 - 0.8 38 min
DMV 25.7N 0.03 1.0 1.06.0 - 8.0 0.03 0.0124.0 - 26.03.0 - 4.00.5 - 1.00.2 - 0.3Bal.0.5 - 142 min
DMV 928 0.03 1.0 2.529.5 - 32.5 0.03 0.0326.0 - 28.03.0 - 4.0  Bal. 0.6 - 1.4  
DMV 825 0.05 0.5 1.038.0 - 46.0 0.03 0.0319.5 - 23.52.5 - 3.5Bal.0.6 - 1.21.5 - 3.0Al ≤ 0.2
DMV G3 0.015 1.0 1.0Bal. 0.04 0.0321.0 - 23.56.0 - 8.01.5 18.0 - 21.0  1.5 - 2.5Co ≤ 5
Nb + Ta ≤ 0.5		 
DMV C276 0.02 0.08 1.0Bal. 0.03 0.0314.5 - 16.515.0 - 17.03.0 - 4.54.0 - 7.0Co ≤ 2.5
V ≤ 0.35
Ni + Co ≤ 52
1) All figures in weight percentage. In case of order, the limits of the order specification will apply.
QHSE
材质比较工具