A dedicated range of butt-weld, threaded and socket-weld stainless fittings—not simply stainless pipe—with grade and finish matched to the application.
The enquiry must distinguish welded piping components from compact forged fittings. Grade suffix, schedule, pressure class, end preparation and surface finish are stated separately.
See complete product images for stainless pipe, butt-weld fittings, forged fittings and flanges.
Open Stainless Steel Guide →Material selection belongs to the project engineer. 304/304L and 316/316L are shown as common enquiry grades, not substitutes for one another.
| Product | Common specification basis | Indicative range |
|---|---|---|
| Pipe | ASTM A312 TP304/304L/316/316L | NPS ½–24; Sch 5S/10S/40S/80S |
| Butt-weld fittings | ASTM A403 / ASME B16.9 | NPS ½–24; wall to suit pipe |
| Forged threaded fittings | ASTM A182 / ASME B16.11 | NPS ⅛–4; class by design |
| Forged socket-weld fittings | ASTM A182 / ASME B16.11 | NPS ⅛–4; Class 3000/6000/9000 |
| Flanges | ASTM A182 / ASME B16.5 | NPS ½–24; Class 150–2500 |
| Family | Items | RFQ detail |
|---|---|---|
| Butt-weld | 45°/90° elbows, tees, reducers, caps, stub ends | Grade, size, schedule and seamless/welded requirement |
| Threaded | Elbows, tees, sockets, unions, bushes, plugs | Thread standard, pressure class and grade |
| Socket-weld | Elbows, tees, couplings, unions and branch fittings | Class, bore, end preparation and grade |
| Flanged | Weld-neck, slip-on, blind, threaded and lap-joint | Class, facing, bore, schedule and grade |
