STAINLESS STEEL FORGED FITTINGS Types Elbows, equal and reducing rees, reducers, caps, couplings, half-couplings, bosses, unions, crosses, pipe nipples End connections: threaded (NPT, etc.) / socket welding Standards/Grades ASME B16 11 ASTM A 182 F 304 L and 316 L ASTM A 312 TP 304 L and 316 L (pipe nipples) Dimensions / Tolerances / Testing (according to Standard) Outside Diameter: 1/4" to 2" Class 3000, 6000 Finishing - Certification 3.1 B according to EN 10 204 Accessories - Applications For use with "oil series" pipe