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Cryogenic storage tank material inspection

2 The use thickness without heat treatment can reach 38. 1 mm. Supply status of low temperature materials: SA537Cl . 2 is quenched + tempered; SA516 Gr60 is normalized. 100% ultrasonic inspection s...
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2 The use thickness without heat treatment can reach 38. 1 mm. Supply status of low temperature materials: SA537Cl . 2 is quenched + tempered; SA516 Gr60 is normalized. 100% ultrasonic inspection shall be carried out according to the requirements of A577/A577M “Ultrasonic Oblique Beam Inspection of Steel Plates” when the plates are supplied, and 20% ultrasonic re-inspection shall be carried out before the steel plates are processed. The chemical composition and mechanical properties of the steel plate shall meet the requirements of ASME Ⅱ A537/ A537M; ASME Ⅱ A516/ A516M.

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