Penn Stainless Products supplies seamless tube per ASTM A 213, ASTM A 269 and ASTM A 511. We supply common grades of stainless such as 304/304L and 316/316L in standard tube sizes and wall thicknesses. We can also supply more challenging stainless and nickel seamless tubing in 304H, 309/S, 310/S, 317/L, 321H, 347H, Alloy 20, Duplex 2205, Duplex 2507, Alloy 200/201, C276, Alloy 400, Alloy 600, Alloy 625, Alloy 800H, Alloy 800HT, 254SMO, AL6XN and others. We also supply seamless stainless hollow bar for machining applications with wall thicknesses in excess of 2” for some stainless grades. Most sizes of seamless stainless and nickel tube can be cut to exact sizes. Non standard sizes can be made to order. Contact a sales associate today for your exact seamless nickel or stainless tubing requirement.
| OD / Wall | ID | WT / FT | Grade | OD / Wall | ID | WT / FT | Grade | |
| 3" x .375 | 2.250 | 10.8285 | 316/L | 3-1/4" x .250 | 2.750 | 8.250 | 316/L | |
| 321 | Continued | 321 | ||||||
| 3" x .438 | 2.124 | 12.3441 | 304/L | 3-1/4" x .375 | 2.500 | 11.860 | 304/L | |
| 316/L | 316/L | |||||||
| 3" x .500 | 2.000 | 13.7505 | 304/L | 321 | ||||
| 310 | 3-1/4" x .438 | 2.374 | 13.549 | 304/L | ||||
| 316/L | 316/L | |||||||
| 321 | 3-1/4" x .500 | 2.250 | 15.126 | 304/L | ||||
| 3" x .625 | 1.750 | 16.3287 | 304/L | 316/L | ||||
| 316/L | 321 | |||||||
| 321 | 3-1/4" x .625 | 2.000 | 18.048 | 304/L | ||||
| 3" x .750 | 1.500 | 18.3631 | 304/L | 316/L | ||||
| 316/L | 321 | |||||||
| 321 | 3-1/4" x .750 | 1.750 | 20.625 | 304/L | ||||
| 3" x .875 | 1.250 | 20.4538 | 304/L | 316/L | ||||
| 316/L | 321 | |||||||
| 3" x 1.000 | 1.000 | 22.0008 | 304/L | 3-1/4" x .875 | 1.500 | 22.860 | 304/L | |
| 316/L | 316/L | |||||||
| 3-1/8" x .120 | 2.885 | 3.9667 | 304/L | 3-1/4" x 1.000 | 1.250 | 24.751 | 304/L | |
| 316/L | 316/L | |||||||
| 3-1/8" x .188 | 2.749 | 6.0739 | 304/L | 3-3/8" x .188 | 2.999 | 6.591 | 304/L | |
| 316/L | 316/L | |||||||
| 3-1/8" x .250 | 2.625 | 7.9065 | 304/L | 3-3/8" x .250 | 2.875 | 8.594 | 304/L | |
| 316/L | 316/L | |||||||
| 321 | 321 | |||||||
| 3-1/8" x .313 | 2.499 | 9.6820 | 304/L | 3-3/8" x .375 | 2.625 | 12.375 | 304/L | |
| 316/L | 316/L | |||||||
| 3-1/8" x .375 | 2.375 | 11.3441 | 304/L | 3-3/8" x .500 | 2.375 | 11.647 | 304/L | |
| 316/L | 316/L | |||||||
| 321 | 3-1/2" x .065 | 3.370 | 2.456 | 304/L | ||||
| 3-1/8" x .438 | 2.249 | 12.9464 | 304/L | 316/L | ||||
| 316/L | 321 | |||||||
| 3-1/8" x .500 | 2.125 | 14.4380 | 304/L | 3-1/2" x .083 | 3.334 | 3.120 | 304/L | |
| 316/L | 316/L | |||||||
| 321 | 321 | |||||||
| 3-1/8" x .625 | 1.875 | 17.1881 | 304/L | 3-1/2" x .120 | 3.260 | 4.462 | 304/L | |
| 316/L | 316/L | |||||||
| 3-1/4" x .065 | 3.120 | 2.2773 | 304/L | 321 | ||||
| 316/L | 3-1/2" x .134 | 3.232 | 4.961 | 304/L | ||||
| 321 | 3-1/2" x .156 | 3.188 | 5.738 | 304/L | ||||
| 3-1/4" x .120 | 3.010 | 4.1317 | 304/L | 321 | ||||
| 316/L | 3-1/2" x .188 | 3.124 | 6.849 | 304/L | ||||
| 321 | 321 | |||||||
| 3-1/4" x .188 | 2.874 | 6.3324 | 304/L | 3-1/2" x .250 | 3.000 | 8.938 | 304/L | |
| 316/L | 310 | |||||||
| 321 | 316/L | |||||||
| 3-1/4" x .250 | 2.750 | 8.2503 | 304/L | 321 |
- Tube can be cut to size or polished per customer specification.
- Tube is stocked in 17' to 24' R/L sections. Longer lengths can be made to order.
- Penn Stainless also stocks seamless and welded pipe.
