上海城市天然气高压管线断裂止裂韧性值探讨

Probe on Shanghai Natural Gas HP Pipeline Tenacity Value of Stop-crack

介绍了输气钢管的延性断裂和止裂,止裂韧性计算的公式以及几条典型管线的止裂韧性要求,并且讨论了上海天然气主干管网工程用螺旋焊管韧性指标值。

The article introduces ductility crack and stop-crack of steel pipeline, the demands of calculationformula of stop-crack tenacity and some typical pipeline stop-crack tenacity. And screw welded steel pipelinetenacity value using in Shanghai main pipeline network in discussed.