1.Stainless Steel Cap 2.Size: 1/2"-72" 3.Wall Thickness: SCH20,STD,SCH40,SCH80,SCH160,XXS 4.Standard: ANSI,ASME,ASTM,JIS,DIN Stainless ... / 16.28, ASTM A53/A106, API 5L, ASME B36.10M---1996, DIN2605 / 2615 / 2616, JIS P2311/23122. Size: 1/2"-72"3. Wall ... ,304L,304LN,304TI,304H,321,321H,316,316L,317,317L 1/2"-72" ANSI/ASME/ASTM/JIS/DIN Stainless Steel Cap