Size:1/2"-2" Pound Class:900Lb-2500Lb Design and Manufacture:API602, BS5352 Size: 1/2"-2" Pound Class: 900Lb-2500Lb Design and Manufacture: API602, BS5352 Socket-Weld Dimension: ANSI B16.11 End Connection Std.: ANSI B1.20.1 Pressure & Temperature Ratings: ASME B16.34 Test Standard: API 598 Material: A105. LF2, F5, F11, F22, 304/L, 316/L, F347, F321 F51, Monel, Alloy 20