石油天然气输送管标准探讨

Discussion of Standards for Oil & Gas Linepipe

结合多年生产实践,对现行石油天然气输送管标准进行了探讨;针对有关标准对导向弯曲试验、理化性能组批取样、夹杂物、屈强比、化学成分最小值、金属维氏硬度试验、错边、焊偏和静水压试验压力规定上的不足,提出了改进建议。

Based on years＇ experiences of oil and gas linepipe production, the standards for such products are discussed. As a result, proposals for supplements to certain contents of the standards are put forward, covering such aspects as guided-bend test, lot sampling for physical-chemical property tests, inclusions, yield to tensile ratio, minimal chemical composition, metal Vickers hardness test, radial offset, misalignment and hydrostatic test pressure etc.