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 Stainless Steel
Unthreaded Pipe Nipples and Pipe
![](/prerenderstable/mvPRE/contents/gfx/imagecache/194/1947k38-@halfx_637604785562988709.png?ver=imagenotfound)
Also known as Schedule 40, this pipe has a thicker wall than our thin-wall stainless steel unthreaded pipe. Weld it to fittings and additional lengths of pipe. Welded connections are stronger than threaded connections and less likely to leak.
304 stainless steel pipe has very good corrosion resistance. 316 stainless steel pipe has excellent 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.
- For Use With: Air, Natural Gas, Oil, Water
- Specifications Met:
Pipe 10" and shorter: ASTM 312
Pipe 1 ft. and longer: ASME B36.19, ASTM 312 - Fittings: Use Class 150 or Schedule 40 stainless steel
- Flanges: Use Schedule 40 stainless steel
304/304L Stainless Steel | 316/316L Stainless Steel | ||||
---|---|---|---|---|---|
Lg. | Wall Thick. | Each | Each | ||
1/8 Pipe Size | |||||
1" | 0.068" | 0000000 | 00000 | 000000 | 00 |
1 1/2" | 0.068" | 0000000 | 0000 | 000000 | 00 |
2" | 0.068" | 0000000 | 0000 | 000000 | 00 |
2 1/2" | 0.068" | 0000000 | 0000 | 000000 | 00 |
3" | 0.068" | 0000000 | 0000 | 000000 | 00 |
4" | 0.068" | 0000000 | 0000 | 000000 | 00 |
5" | 0.068" | 00000000 | 0000 | 000000 | 00 |
6" | 0.068" | 0000000 | 0000 | 000000 | 00 |
8" | 0.068" | 00000000 | 00000 | 000000 | 00 |
10" | 0.068" | 00000000 | 00000 | 000000 | 00 |
1ft. | 0.068" | 000000000 | 00000 | 000000000 | 000000 |
3ft. | 0.068" | 000000000 | 00000 | 000000000 | 00000 |
6ft. | 0.068" | 000000000 | 00000 | 000000000 | 00000 |
1/4 Pipe Size | |||||
1" | 0.088" | 0000000 | 0000 | 000000 | 00 |
1 1/2" | 0.088" | 0000000 | 0000 | 000000 | 00 |
2" | 0.088" | 0000000 | 0000 | 000000 | 00 |
2 1/2" | 0.088" | 0000000 | 0000 | 000000 | 00 |
3" | 0.088" | 0000000 | 0000 | 000000 | 00 |
4" | 0.088" | 0000000 | 0000 | 000000 | 00 |
5" | 0.088" | 00000000 | 0000 | 000000 | 00 |
6" | 0.088" | 0000000 | 0000 | 000000 | 00 |
8" | 0.088" | 00000000 | 00000 | 000000 | 00 |
10" | 0.088" | 00000000 | 00000 | 000000 | 00 |
1ft. | 0.088" | 000000000 | 00000 | 000000000 | 00000 |
3ft. | 0.088" | 000000000 | 00000 | 000000000 | 00000 |
6ft. | 0.088" | 000000000 | 00000 | 000000000 | 00000 |
3/8 Pipe Size | |||||
1" | 0.091" | 0000000 | 0000 | 000000 | 00 |
1 1/2" | 0.091" | 0000000 | 0000 | 000000 | 00 |
2" | 0.091" | 0000000 | 0000 | 000000 | 00 |
2 1/2" | 0.091" | 0000000 | 0000 | 000000 | 00 |
3" | 0.091" | 0000000 | 0000 | 000000 | 00 |
4" | 0.091" | 0000000 | 0000 | 000000 | 00 |
5" | 0.091" | 00000000 | 0000 | 000000 | 00 |
6" | 0.091" | 0000000 | 00000 | 000000 | 00 |
8" | 0.091" | 00000000 | 00000 | 000000 | 00 |
10" | 0.091" | 00000000 | 00000 | 000000 | 00 |
1ft. | 0.091" | 000000000 | 00000 | 000000000 | 00000 |
3ft. | 0.091" | 000000000 | 00000 | 000000000 | 00000 |
6ft. | 0.091" | 000000000 | 00000 | 000000000 | 00000 |
1/2 Pipe Size | |||||
1" | 0.109" | 0000000 | 0000 | 000000 | 00 |
1 1/2" | 0.109" | 0000000 | 0000 | 000000 | 00 |
2" | 0.109" | 0000000 | 0000 | 0000000 | 0000 |
2 1/2" | 0.109" | 0000000 | 0000 | 000000 | 00 |
3" | 0.109" | 0000000 | 0000 | 000000 | 00 |
4" | 0.109" | 0000000 | 0000 | 0000000 | 00000 |
5" | 0.109" | 00000000 | 0000 | 000000 | 00 |
6" | 0.109" | 0000000 | 00000 | 0000000 | 00000 |
8" | 0.109" | 00000000 | 00000 | 000000 | 00 |
10" | 0.109" | 00000000 | 00000 | 000000 | 00 |
1ft. | 0.109" | 000000000 | 00000 | 000000000 | 00000 |
3ft. | 0.109" | 000000000 | 00000 | 000000000 | 00000 |
6ft. | 0.109" | 000000000 | 00000 | 000000000 | 00000 |
3/4 Pipe Size | |||||
1" | 0.113" | 0000000 | 0000 | 000000 | 00 |
1 1/2" | 0.113" | 0000000 | 0000 | 000000 | 00 |
2" | 0.113" | 0000000 | 0000 | 0000000 | 0000 |
2 1/2" | 0.113" | 0000000 | 0000 | 000000 | 00 |
3" | 0.113" | 0000000 | 0000 | 000000 | 00 |
4" | 0.113" | 0000000 | 00000 | 0000000 | 00000 |
5" | 0.113" | 00000000 | 00000 | 000000 | 00 |
6" | 0.113" | 0000000 | 00000 | 0000000 | 00000 |
8" | 0.113" | 00000000 | 00000 | 000000 | 00 |
10" | 0.113" | 00000000 | 00000 | 000000 | 00 |
1ft. | 0.113" | 000000000 | 00000 | 000000000 | 00000 |
3ft. | 0.113" | 000000000 | 00000 | 000000000 | 00000 |
6ft. | 0.113" | 000000000 | 00000 | 000000000 | 000000 |
1 Pipe Size | |||||
1 1/2" | 0.133" | 0000000 | 0000 | 000000 | 00 |
2" | 0.133" | 0000000 | 0000 | 0000000 | 00000 |
2 1/2" | 0.133" | 0000000 | 0000 | 000000 | 00 |
3" | 0.133" | 0000000 | 00000 | 000000 | 00 |
4" | 0.133" | 0000000 | 00000 | 0000000 | 00000 |
5" | 0.133" | 00000000 | 00000 | 000000 | 00 |
6" | 0.133" | 0000000 | 00000 | 0000000 | 00000 |
8" | 0.133" | 00000000 | 00000 | 000000 | 00 |
10" | 0.133" | 00000000 | 00000 | 000000 | 00 |
1ft. | 0.133" | 000000000 | 00000 | 000000000 | 00000 |
3ft. | 0.133" | 000000000 | 00000 | 000000000 | 000000 |
6ft. | 0.133" | 000000000 | 000000 | 000000000 | 000000 |
1 1/4 Pipe Size | |||||
1 1/2" | 0.14" | 0000000 | 0000 | 000000 | 00 |
2" | 0.14" | 0000000 | 00000 | 0000000 | 00000 |
2 1/2" | 0.14" | 0000000 | 00000 | 000000 | 00 |
3" | 0.14" | 0000000 | 00000 | 000000 | 00 |
4" | 0.14" | 0000000 | 00000 | 0000000 | 00000 |
5" | 0.14" | 00000000 | 00000 | 000000 | 00 |
6" | 0.14" | 0000000 | 00000 | 0000000 | 00000 |
8" | 0.14" | 00000000 | 00000 | 000000 | 00 |
10" | 0.14" | 00000000 | 00000 | 000000 | 00 |
1ft. | 0.14" | 000000000 | 00000 | 000000000 | 00000 |
3ft. | 0.14" | 000000000 | 00000 | 000000000 | 000000 |
6ft. | 0.14" | 000000000 | 000000 | 000000000 | 000000 |
1 1/2 Pipe Size | |||||
1 1/2" | 0.145" | 0000000 | 00000 | 000000 | 00 |
2" | 0.145" | 0000000 | 00000 | 0000000 | 00000 |
2 1/2" | 0.145" | 0000000 | 00000 | 000000 | 00 |
3" | 0.145" | 0000000 | 00000 | 000000 | 00 |
4" | 0.145" | 0000000 | 00000 | 0000000 | 00000 |
5" | 0.145" | 00000000 | 00000 | 000000 | 00 |
6" | 0.145" | 0000000 | 00000 | 0000000 | 00000 |
8" | 0.145" | 00000000 | 00000 | 000000 | 00 |
10" | 0.145" | 00000000 | 00000 | 000000 | 00 |
1ft. | 0.145" | 000000000 | 00000 | 000000000 | 00000 |
3ft. | 0.145" | 000000000 | 000000 | 000000000 | 000000 |
6ft. | 0.145" | 000000000 | 000000 | 000000000 | 000000 |
2 Pipe Size | |||||
2" | 0.154" | 0000000 | 00000 | 000000 | 00 |
2 1/2" | 0.154" | 0000000 | 00000 | 0000000 | 00000 |
3" | 0.154" | 0000000 | 00000 | 000000 | 00 |
4" | 0.154" | 0000000 | 00000 | 0000000 | 00000 |
5" | 0.154" | 00000000 | 00000 | 000000 | 00 |
6" | 0.154" | 0000000 | 00000 | 0000000 | 00000 |
8" | 0.154" | 00000000 | 00000 | 000000 | 00 |
10" | 0.154" | 00000000 | 00000 | 000000 | 00 |
1ft. | 0.154" | 000000000 | 00000 | 000000000 | 000000 |
3ft. | 0.154" | 000000000 | 000000 | 000000000 | 000000 |
6ft. | 0.154" | 000000000 | 000000 | 000000000 | 000000 |
2 1/2 Pipe Size | |||||
2 1/2" | 0.203" | 0000000 | 00000 | 000000 | 00 |
3" | 0.203" | 0000000 | 00000 | 000000 | 00 |
4" | 0.203" | 0000000 | 00000 | 000000 | 00 |
5" | 0.203" | 00000000 | 00000 | 000000 | 00 |
6" | 0.203" | 0000000 | 00000 | 000000 | 00 |
8" | 0.203" | 00000000 | 00000 | 000000 | 00 |
10" | 0.203" | 00000000 | 00000 | 000000 | 00 |
1ft. | 0.203" | 000000000 | 00000 | 000000000 | 000000 |
3ft. | 0.203" | 000000000 | 000000 | 000000000 | 000000 |
6ft. | 0.203" | 000000000 | 000000 | 000000000 | 000000 |
3 Pipe Size | |||||
2 1/2" | 0.216" | 0000000 | 00000 | 000000 | 00 |
3" | 0.216" | 0000000 | 00000 | 000000 | 00 |
4" | 0.216" | 0000000 | 00000 | 000000 | 00 |
5" | 0.216" | 00000000 | 00000 | 000000 | 00 |
6" | 0.216" | 0000000 | 00000 | 000000 | 00 |
8" | 0.216" | 00000000 | 00000 | 000000 | 00 |
10" | 0.216" | 00000000 | 00000 | 000000 | 00 |
1ft. | 0.216" | 000000000 | 000000 | 000000000 | 000000 |
3ft. | 0.216" | 000000000 | 000000 | 000000000 | 000000 |
6ft. | 0.216" | 000000000 | 000000 | 000000000 | 000000 |
4 Pipe Size | |||||
2 1/2" | 0.237" | 0000000 | 00000 | 000000 | 00 |
3" | 0.237" | 0000000 | 00000 | 000000 | 00 |
4" | 0.237" | 0000000 | 00000 | 000000 | 00 |
5" | 0.237" | 00000000 | 00000 | 000000 | 00 |
6" | 0.237" | 0000000 | 00000 | 000000 | 00 |
8" | 0.237" | 0000000 | 00000 | 000000 | 00 |
10" | 0.237" | 0000000 | 00000 | 000000 | 00 |
1ft. | 0.237" | 000000000 | 000000 | 000000000 | 000000 |
3ft. | 0.237" | 000000000 | 000000 | 000000000 | 000000 |
6ft. | 0.237" | 000000000 | 000000 | 000000000 | 000000 |
6 Pipe Size | |||||
3" | 0.28" | 0000000 | 000000 | 000000 | 00 |
4" | 0.28" | 0000000 | 000000 | 000000 | 00 |
5" | 0.28" | 0000000 | 000000 | 000000 | 00 |
6" | 0.28" | 0000000 | 000000 | 000000 | 00 |
8" | 0.28" | 0000000 | 000000 | 000000 | 00 |
10" | 0.28" | 0000000 | 000000 | 000000 | 00 |
1ft. | 0.28" | 000000000 | 000000 | 000000000 | 000000 |
3ft. | 0.28" | 000000000 | 000000 | 000000000 | 000000 |
6ft. | 0.28" | 000000000 | 000000 | 000000000 | 000000 |
8 Pipe Size | |||||
1ft. | 0.322" | 000000000 | 000000 | 000000000 | 000000 |
3ft. | 0.322" | 000000000 | 000000 | 000000000 | 000000 |
6ft. | 0.322" | 000000000 | 00000000 | 000000000 | 00000000 |
- For Use With: Air, Natural Gas, Oil, Water
- Specifications Met: ASTM A312
- Fittings: Use Class 150 or Schedule 40 stainless steel
- Flanges: Use Schedule 40 stainless steel
304/304L Stainless Steel | 316/316L Stainless Steel | ||||
---|---|---|---|---|---|
Lg. | Wall Thick. | Each | Each | ||
1/4 Pipe Size | |||||
2" | 0.088" | 000000 | 00 | 0000000 | 00000 |
4" | 0.088" | 000000 | 00 | 0000000 | 0000 |
6" | 0.088" | 000000 | 00 | 0000000 | 00000 |
3/8 Pipe Size | |||||
2" | 0.091" | 000000 | 00 | 0000000 | 0000 |
4" | 0.091" | 000000 | 00 | 0000000 | 00000 |
6" | 0.091" | 000000 | 00 | 0000000 | 00000 |
1/2 Pipe Size | |||||
1ft. | 0.109" | 000000000 | 000000 | 000000000 | 00000 |
3ft. | 0.109" | 000000000 | 00000 | 000000000 | 000000 |
6ft. | 0.109" | 00000000 | 000000 | 00000000 | 000000 |
3/4 Pipe Size | |||||
1ft. | 0.113" | 000000000 | 00000 | 000000000 | 00000 |
3ft. | 0.113" | 000000000 | 000000 | 000000000 | 000000 |
6ft. | 0.113" | 00000000 | 000000 | 00000000 | 000000 |
1 Pipe Size | |||||
1ft. | 0.133" | 000000000 | 00000 | 000000000 | 00000 |
3ft. | 0.133" | 000000000 | 000000 | 000000000 | 000000 |
6ft. | 0.133" | 00000000 | 000000 | 00000000 | 000000 |
1 1/4 Pipe Size | |||||
1ft. | 0.14" | 000000000 | 00000 | 000000000 | 00000 |
3ft. | 0.14" | 000000000 | 000000 | 000000000 | 000000 |
6ft. | 0.14" | 00000000 | 000000 | 00000000 | 000000 |
1 1/2 Pipe Size | |||||
1ft. | 0.145" | 000000000 | 00000 | 000000000 | 00000 |
3ft. | 0.145" | 000000000 | 000000 | 000000000 | 000000 |
6ft. | 0.145" | 00000000 | 000000 | 00000000 | 000000 |
2 Pipe Size | |||||
1ft. | 0.154" | 000000000 | 00000 | 000000000 | 000000 |
3ft. | 0.154" | 000000000 | 000000 | 000000000 | 000000 |
6ft. | 0.154" | 00000000 | 000000 | 00000000 | 000000 |
2 1/2 Pipe Size | |||||
1ft. | 0.203" | 000000000 | 000000 | 000000000 | 000000 |
3ft. | 0.203" | 000000000 | 000000 | 000000000 | 000000 |
6ft. | 0.203" | 00000000 | 000000 | 00000000 | 000000 |
3 Pipe Size | |||||
1ft. | 0.216" | 000000000 | 000000 | 000000000 | 000000 |
3ft. | 0.216" | 000000000 | 000000 | 000000000 | 000000 |
6ft. | 0.216" | 00000000 | 000000 | 00000000 | 000000 |
4 Pipe Size | |||||
1ft. | 0.237" | 000000000 | 000000 | 000000000 | 000000 |
3ft. | 0.237" | 000000000 | 000000 | 000000000 | 000000 |
6ft. | 0.237" | 00000000 | 000000 | 00000000 | 000000 |
6 Pipe Size | |||||
1ft. | 0.28" | 000000000 | 000000 | 000000000 | 000000 |
3ft. | 0.28" | 000000000 | 000000 | 000000000 | 000000 |
6ft. | 0.28" | 00000000 | 00000000 | 00000000 | 00000000 |
8 Pipe Size | |||||
1ft. | 0.322" | 000000000 | 000000 | 000000000 | 000000 |
3ft. | 0.322" | 000000000 | 000000 | 000000000 | 00000000 |
6ft. | 0.322" | 000000000 | 00000000 | 000000000 | 00000000 |