NPT threaded type or Butt-welding type or Socket welding type.
Forged steel Outlets conform to MSS SP 97-2006
Forged Fittings Material: Carbon steel to ASTM A105/SA105N and NACE MR-01-75; Stainless steel to ASTM A182 F304, F304L, F316 and F316L.
Connect types: Socket-Welding / Thread (Screwed NPT/BSPT/ ISO7-1).
: Threaded WOG: 2000, 3000, 6000 LBS / Socket-Welding: 3000, 6000, 9000 LBS.
Size: NPS 1/8”-4” (DN6-DN100).
Finish: Galvanized or Black for carbon steel pipe fittings; Passivation for Stainless steel pipe fittings.
Forged Steel O'let
Pressure Rate
Forged Pipe Fittings: Class designation with Schedule Number and NPS size.
| Class Designation of Fittings | Type of Fittings | Pipe Schedule NO. | Pipe Wall Designations | NPS Size |
| 2000 | Threaded | 80 | XS | 1/8”-4” |
| 3000 | Threaded | 160 | … | |
| 6000 | Threaded | … | XXS | |
| 3000 | Socket-welding | 80 | XS | 1/8”-4” |
| 6000 | Socket-welding | 160 | … | 1/8”-2” |
| 9000 | Socket-welding | … | XXS | 1/2”-2” |
All Forged Pipe Fittings Specifications as below:
90/45 ELBOW, CROSS, STREET ELBOW, TEE, REDUCING TEE, COUPLING, HALF COUPLING, CAP, PLUG, HEXAGON HEAD BUSHING, UNION, SWAGE NIPPLE, ROUND HEAD PLUG, HEXAGON H PLUG, SQUARE HEAD PLUG, REDUCER INSERT, PIPE NIPPLE, SOCKET WELD ELBOW, SCREWED ELBOW and BULL PLUGES.
Related Standards about forged pipe fittings:
ASME B16.11 Standard specification for forged fittings with socket-weld or screwed ends.
ASTM A105 / ASME SA105 Material standards covering forged carbon steel piping components for ambient- and higher temperature service in pressure systems.
ASTM A182 / ASME SA182 Material standards covering forged or rolled low alloy-steel piping components for use in pressure systems, suitable for elevated temperatures.
ASTM A350 / ASME SA350 Material standards covering several grades of carbon and low-alloy steel forged or ring-rolled flanges, forged fittings and valves intended primarily for low-temperature service.
BS 3799 Standard specification for forged nipples with socket-weld or screwed ends.
MSS SP-79 Standard specification for socket welding reducing inserts.
MSS SP-83 Standard specification for carbon steel pipe unions, with socket-weld or screwed ends.
MSS SP-95 Sewage nipple and Bull Plugs
MSS SP-97 Standard specification for weld o’lets.
ASME B36.10 M Standard specification of connecting dimensions for elbows and fittings. This standard gives a survey of outside diameters and wall thicknesses.
ANSI/ASME B1.20.1 Pipe threads, general purpose. This standard indicates the thread of NPT.
ISO 7/1 Pipe threads where pressure tight joints are made on the threads.
