高压管线焊缝腐蚀开裂原因分析

Cause Analysis of Corrosion Cracking of Welds on High-temperature Pressure Pipelines

催化剂厂微球车间的高压管线由于处在S2 Cl- H2 O腐蚀环境中 ,因此易发生应力腐蚀开裂。消除残余应力 ,使表面产生压应力或选用 18Cr

The high-pressure pipelines in the catalyst plant were exposed to S 2-Cl --H 2O environment and subject to stress corrosion cracking. Relieving the residue stress, producing pressure stress on the surface or selecting new 18Cr-2Mo steel could prevent the cracking.