Forged Elbow 45-Degree and 90-Degree Elbow Fittings with SW& Threaded Connection Ends. Pressure: 2000LBS, 3000LBS, 6000LBS, 9000LBS Size: from 1/8" to 4" Material: ASTM A105, F304, F316, F304L, F316L, A182 F11/F22/F91 Connection ends: socket weld and threaded Threaded Pipe Fitting SS304 Precision Cast Fittings Threaded Pipe Fitting SS304 with 90 degrees Elbow, Class 150lb, Male and Female Thread. Size: 1/2 to 4 inchesb SS304 90 degrees elbow, class 150lb, with male and female thread Materials: SS304 and SS316 Manufacturing standards: ANSI, JIS, and DIN