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How to Identify and Measure Fittings
Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.
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Standard-Wall Aluminum Unthreaded Pipe
- For Use With: Air, Oil, Water
- Specifications Met: ASTM B241
- Fittings: Use Schedule 40 aluminum
- Flanges: Use Class 125 aluminum
With a thicker wall than our thin-wall aluminum pipe, this pipe is also known as Schedule 40. Weld it to fittings and additional lengths of pipe. Welded connections are stronger than threaded connections and less likely to leak. Pipe is aluminum, which is lightweight with good corrosion resistance.
Seamless pipe has a smooth interior for unrestricted flow and is stronger than welded pipe. Welded pipe has a weld bead on the inside.
For technical drawings and 3-D models, click on a part number.
| Lg., ft. | Wall Thick. | Construction | Each | |
1/8 Pipe Size | ||||
|---|---|---|---|---|
| 1 | 0.068" | Seamless | 00000000 | 00000 |
| 3 | 0.068" | Seamless | 0000000 | 00000 |
| 6 | 0.068" | Seamless | 0000000 | 00000 |
1/4 Pipe Size | ||||
| 1 | 0.088" | Seamless | 00000000 | 0000 |
| 3 | 0.088" | Seamless | 0000000 | 00000 |
| 6 | 0.088" | Seamless | 0000000 | 00000 |
3/8 Pipe Size | ||||
| 1 | 0.091" | Seamless | 00000000 | 00000 |
| 3 | 0.091" | Seamless | 0000000 | 00000 |
| 6 | 0.091" | Seamless | 0000000 | 00000 |
1/2 Pipe Size | ||||
| 1 | 0.109" | Seamless | 00000000 | 00000 |
| 3 | 0.109" | Seamless | 0000000 | 00000 |
| 6 | 0.109" | Seamless | 0000000 | 00000 |
3/4 Pipe Size | ||||
| 1 | 0.113" | Seamless | 00000000 | 00000 |
| 3 | 0.113" | Seamless | 0000000 | 00000 |
| 6 | 0.113" | Seamless | 0000000 | 00000 |
1 Pipe Size | ||||
| 1 | 0.133" | Seamless | 00000000 | 00000 |
| 3 | 0.133" | Seamless | 0000000 | 00000 |
| 6 | 0.133" | Seamless | 0000000 | 00000 |
1 1/4 Pipe Size | ||||
| 1 | 0.14" | Seamless | 00000000 | 00000 |
| 3 | 0.14" | Seamless | 0000000 | 00000 |
| 6 | 0.14" | Seamless | 0000000 | 000000 |
1 1/2 Pipe Size | ||||
| 1 | 0.145" | Seamless | 00000000 | 00000 |
| 3 | 0.145" | Seamless | 0000000 | 00000 |
| 6 | 0.145" | Seamless | 0000000 | 000000 |
2 Pipe Size | ||||
| 1 | 0.154" | Seamless | 00000000 | 00000 |
| 3 | 0.154" | Seamless | 0000000 | 00000 |
| 6 | 0.154" | Seamless | 0000000 | 000000 |
2 1/2 Pipe Size | ||||
| 1 | 0.203" | Seamless | 00000000 | 00000 |
| 3 | 0.203" | Seamless | 0000000 | 000000 |
| 6 | 0.203" | Seamless | 0000000 | 000000 |
3 Pipe Size | ||||
| 1 | 0.216" | Seamless | 00000000 | 00000 |
| 3 | 0.216" | Seamless | 0000000 | 000000 |
| 6 | 0.216" | Seamless | 0000000 | 000000 |
4 Pipe Size | ||||
| 1 | 0.237" | Seamless | 00000000 | 000000 |
| 3 | 0.237" | Seamless | 0000000 | 000000 |
| 6 | 0.237" | Seamless | 0000000 | 000000 |
6 Pipe Size | ||||
| 1 | 0.28" | Welded | 00000000 | 000000 |
| 3 | 0.28" | Welded | 00000000 | 000000 |
| 6 | 0.28" | Welded | 00000000 | 00000000 |