According to Chinese Standard GB2038, ?J? integral test was carried out on base metal, weld and HAZ(heat affected zone) of X52 ERW pipes and X60 SSAW pipes under a series of temperature with TPB(three point bending) specimens.

 
  • 試驗按照GB2 0 38標準要求 ,采用三點(diǎn)彎曲試樣 ,分別對進(jìn)口X52ERW焊管母材、焊縫以及國產(chǎn)X60SSAW焊管母材、焊縫、熱影響區進(jìn)行系列溫度J積分試驗。
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