高硫高盐油田用825复合钢管焊接国际标准探讨

基于国内外825合金焊接研究的基础，结合国际标准和国际石油公司的技术规范，明确了825合金的适用范围，探讨了焊接关键参数对825复合钢管焊接接头性能的影响，规定了相关性能试验的检测要求和指标，建立了825复合钢管焊接指南，切实保证了825复合钢管焊接接头的力学性能和抗腐蚀开裂性能，为高硫高盐油田用825复合钢管焊接提供参考和依据。

Discussion on International Standards of 825 Alloy Composite Pipe Welding in High-sulfur and High-salt Oil Field

Based on the research of 825 alloy welding at home and abroad，combined with the international standards and specifications of the international petroleum companies，the application scope of 825 alloy is defined，the influence of key welding parameters on the performance of 825 composite steel pipe welding joint is discussed，the inspection requirements and indexes of the relevant performance tests are specified，the welding guide of 825 composite steel pipe is established，and the welding guide of 825 composite steel pipe is effectively guaranteed. The mechanical properties and anti-corrosion cracking properties of the joint provide reference and basis for 825 composite steel pipe welding in high sulfur and high-salt oil field.