... "(DN15-DN1200) welded 1/2"-88"(DN15-DN2000) MaterialsCarbon Steel:ASTM A234 WPB, ST35, ST37, 20#. Stainless Steel:SS304, 304L, 316, 316L ... , P91, Q345, 16Mn SizeFrom 1/2 inch up to 88 inchseamless1/2”-48”(DN15-DN1200)welded1/2”-88”(DN15-DN2000)Wall thicknessSCH10-SCH160 ...