... .Wall thicknessSCH5S-SCH160, XS XXSStandardsANSI , ASTM , DIN , JIS, EN , BS, GB , SH and HG etcMaterialStainless steel : ASTM A403 , WP304 ,304L,301,316 ... ,316L,321,347,904LCarbon Steel : ASTM A 234 WPB, WPC ASTM A 105 WPHY 42 , 46 , 52 , 56 , ... 60 , 65 , 70 , 80Alloy Steel:ASTM A234 WP1, WP5 , WP9 , WP11,WP22, WP91Low Temperature:ASTM A420 WPL 1,WPL3 ,WPL 6Surface ...