Discribtion:short radius return Materia:304,304L,309S,310S,316,316L,321,347H,e Choose CHENGANG,Choose BEST Product. DescriptionSteel eblowSize1/ 2"- 72"Wall thickness:SCH20, SGP, STD, SCH40, SCH80, SCH160Applicable standardANSI B 16.9, ASME, ASTM, , JIS, DIN, EN, ANSI B16.9/16.28, ASTM, API 5L, DIN2605/2615/2616, JIS P2311/2312 ASME B36.10M---1996MaterialCarbon steel, alloy steel, stainless steel ...