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Measure your pipe and fittings to identify their pipe size, thread size, schedule, and thread type. Then, find compatible components.
Standard-Wall Butt-Weld Stainless Steel Unthreaded Pipe Fittings
Also known as Schedule 40 fittings, these have thicker walls than our thin-wall stainless steel unthreaded butt-weld fittings. They have beveled ends that, when flush to pipe, create a trough for a strong weld that permits maximum flow.
304 stainless steel fittings have very good corrosion resistance. 316 stainless steel fittings have excellent corrosion resistance.
- For Use With: Air, Natural Gas, Oil, Water
- Specifications Met: ASME B16.9, ASTM A403, MSS SP-43
- Pipe Nipples and Pipe: Use Schedule 40 stainless steel
- Flanges: Use Class 150 stainless steel
304/304L Stainless Steel | 316/316L Stainless Steel | |||||
|---|---|---|---|---|---|---|
Pipe Size | Wall Thick. | Construction | Each | Each | ||
| 1/2 | 0.109" | Welded | 45605K581 | 000000 | 45555K581 | 000000 |
| 3/4 | 0.113" | Welded | 45605K582 | 00000 | 45555K582 | 00000 |
| 1 | 0.133" | Welded | 45605K583 | 00000 | 45555K583 | 00000 |
| 1 1/4 | 0.14" | Welded | 45605K584 | 00000 | 45555K584 | 00000 |
| 1 1/2 | 0.145" | Welded | 45605K585 | 00000 | 45555K585 | 00000 |
| 2 | 0.154" | Welded | 45605K586 | 00000 | 45555K586 | 00000 |
| 2 1/2 | 0.203" | Welded | 45605K587 | 00000 | 45555K587 | 00000 |
| 3 | 0.216" | Welded | 45605K591 | 00000 | 45555K591 | 00000 |
| 4 | 0.237" | Welded | 45605K593 | 00000 | 45555K593 | 00000 |
| 6 | 0.28" | Welded | 45605K595 | 00000 | 45555K595 | 000000 |
| 8 | 0.322" | Welded | 45605K529 | 000000 | 45555K614 | 000000 |
Thin-Wall Butt-Weld Stainless Steel Unthreaded Pipe Fittings
Also known as Schedule 10 fittings, these are thin and lightweight. They have beveled ends that, when flush to pipe, create a trough for a strong weld that permits maximum flow.
304 stainless steel fittings have very good corrosion resistance. 316 stainless steel fittings have excellent corrosion resistance.
- For Use With: Air, Natural Gas, Oil, Water
- Specifications Met: ASME B16.9, ASTM A403, MSS SP-43
- Pipe: Use Schedule 10 stainless steel
304/304L Stainless Steel | 316/316L Stainless Steel | |||||
|---|---|---|---|---|---|---|
| Pipe Size | Wall Thick. | Construction | Each | Each | ||
| 1/2 | 0.083" | Welded | 45735K271 | 000000 | 43645K371 | 000000 |
| 3/4 | 0.083" | Welded | 45735K272 | 00000 | 43645K372 | 00000 |
| 1 | 0.109" | Welded | 45735K273 | 00000 | 43645K373 | 00000 |
| 1 1/4 | 0.109" | Welded | 45735K277 | 00000 | 43645K147 | 00000 |
| 1 1/2 | 0.109" | Welded | 45735K275 | 00000 | 43645K375 | 00000 |
| 2 | 0.109" | Welded | 45735K276 | 00000 | 43645K376 | 00000 |
| 2 1/2 | 0.12" | Welded | 45735K281 | 00000 | 43645K148 | 00000 |
| 3 | 0.12" | Welded | 45735K278 | 00000 | 43645K378 | 00000 |
| 4 | 0.12" | Welded | 45735K279 | 00000 | 43645K379 | 00000 |
| 6 | 0.134" | Welded | 45735K282 | 00000 | 43645K149 | 00000 |
| 8 | 0.148" | Welded | 45735K115 | 000000 | 43645K151 | 000000 |
| 10 | 0.165" | Welded | 45735K619 | 000000 | 43645K458 | 000000 |
| 12 | 0.18" | Welded | 45735K621 | 000000 | 43645K459 | 000000 |