... elbows (pipe fitting) of types 90degree Elbows, 45degree Elbows, 180deg elbow Reliable provides forged, seamless & welded elbows (pipe fitting) of types ... 90° Elbows, 45° Elbows, 180° Elbow of socket weld, threaded type to ANSI B 16.5 ... WP5, A403-WP304, A403-WP304L, A403-WP316, A403-WP316L, SS304, SS304L, SS316, SS316L 5. Application Standard: ASTMB16.9, ASTM16.11ASTMB16.28 ...