常见钢管质量问题及成因分析

国产钢管常见的质量问题主要表现在表面质量、尺寸偏差、化学成分、力学性能和质检等方面。通过大量实例，分析了国产钢管常见质量问题的形成原因，给出了提高钢管产品质量的办法。阐述了进口钢管供求双方在高温性能数据、碳钢热处理、微观组织等方面的认识差异。

Common Quality Problem & Cause Analyses of Steel Pipe

Common quality problem occurred in China made steel pipe mainly involved in surface quality,dimension deviation, chemical composition,mechanical properties and quality inspection,etc.From a collection of examples,this article analyses formed reason of common quality problem of China steel pipe,and proposals methods to improve quality of steel pipe,and also states cognitive difference in performance data at high temperature,heat treatment of carbon steel,and microcosmic structure between supplier and demander of importing steel pipe.