石油天然氣輸送管標(biāo)準(zhǔn)探討
Discussion of Standards for Oil ＆ Gas Linepipe
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摘要: 結(jié)合多年生產(chǎn)實(shí)踐,對(duì)現(xiàn)行石油天然氣輸送管標(biāo)準(zhǔn)進(jìn)行了探討;針對(duì)有關(guān)標(biāo)準(zhǔn)對(duì)導(dǎo)向彎曲試驗(yàn)、理化性能組批取樣、夾雜物、屈強(qiáng)比、化學(xué)成分最小值、金屬維氏硬度試驗(yàn)、錯(cuò)邊、焊偏和靜水壓試驗(yàn)壓力規(guī)定上的不足,提出了改進(jìn)建議。Abstract: 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.
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