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How to chose the pipe fittings material? ASTM A420-WPL6 or ASTM A234-WPB
ASTM A420-WPL6 or ASTM A234-WPB What is ASTM A420 WPL6 material? ASTM A420 WPL6 is a typical low temperature material grade for Butt weld pipe fittings. The most important character for ASTM A420 WPL6 is used for low temperature enviorement therefore,all the pipe fittings shall be impact tested and The impact Read more…