日本管道管用高焊接性13%Cr激光焊接钢管的开发

Weldable 13% Chromium Line Pipe by High Power Laser Welding

日本 NKK公司通过使用大功率激光焊接工艺开发生产出了高焊接性的 13% Cr管线钢管。这种激光焊管实现了薄壁合金管在流体输送管道上的应用。该合金管的强度性能与 API- X80级管线钢管相当 ,焊缝区试验表明 ,韧性和耐腐蚀性与母材相当 ,具有很好的特性。它将会成为 CO2

NKK has developed weldable 13% chromium line pipe by applying the high power laser welding process(NKK-HPLW). This laser welded pipe realizes thinner alloy line pipe which is commonly designed in flow line usage. Tensile properties of this developed laser welded alloy pipe show equivalent revel of API-X80 grade.On toughness and corrosion resistance, weld area test results show the same revel of base metal. It is confirmed that good characteristics as same as base metal are obtained by NKK-HPLW. And high power laser welded 13% chromium pipe will become an advantageous material for CO 2 corrosive field development.