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About Stainless Steel
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Compare over 25 types of stainless steel to find the right material for you—all with material certificates for traceability.
Multipurpose 304 Stainless Steel Rectangular Tubes
Create frames, machine enclosures, railing bases, and load-bearing components that hold up in corrosive environments. These tubes have flat sides, which make them easy to mount. Formed from flat stainless steel strip and welded along the seam, these tubes have consistent dimensions and gently rounded corners that reduce stress points, improve strength, and create a smooth, easy-to-clean surface. They meet ASTM A554 specifications for use in structural applications but are not for use in fluid-handling or pressure-rated systems. These tubes maintain their corrosion resistance up to 1500° F.
Square Profile—Often used for posts and supports where loads can shift or come from multiple directions. With four uniform sides, these tubes distribute loads evenly across their surface. They bend consistently under uniform loads, so orientation is less critical.
Rectangular Profile—Best for beams and other long spans. This shape saves space but is strongest when the load only comes from one direction.
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Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
Outside | Inside | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Ht. | Wd. | Ht. | Wd. | Wall Thk. Tolerance | Material | Fabrication | Hardness | Specs. Met | 1/2 ft. Long | 1 ft. Long | 3 ft. Long | 6 ft. Long | |||
Square Profile | |||||||||||||||
 | |||||||||||||||
0.065" Thick Wall (16 ga.) | |||||||||||||||
| 1/2" | 1/2" | 0.37" | 0.37" | -0.007" to 0.007" | 304 Stainless Steel | Welded | Not Rated | ASTM A554 | 89825K31 | 00000 | 00000 | 000000 | 000000 | ||
| 3/4" | 3/4" | 0.62" | 0.62" | -0.007" to 0.007" | 304 Stainless Steel | Welded | Not Rated | ASTM A554 | 89825K32 | 0000 | 00000 | 00000 | 00000 | ||
| 1" | 1" | 0.87" | 0.87" | -0.007" to 0.007" | 304 Stainless Steel | Welded | Not Rated | ASTM A554 | 89825K33 | 00000 | 00000 | 00000 | 00000 | ||
| 1 1/4" | 1 1/4" | 1.12" | 1.12" | -0.007" to 0.007" | 304 Stainless Steel | Welded | Not Rated | ASTM A554 | 89825K34 | 00000 | 00000 | 00000 | 00000 | ||
| 1 1/2" | 1 1/2" | 1.37" | 1.37" | -0.007" to 0.007" | 304 Stainless Steel | Welded | Not Rated | ASTM A554 | 89825K35 | 00000 | 00000 | 00000 | 000000 | ||
| 2" | 2" | 1.87" | 1.87" | -0.007" to 0.007" | 304 Stainless Steel | Welded | Not Rated | ASTM A554 | 89825K36 | 00000 | 00000 | 00000 | 000000 | ||
0.083" Thick Wall (14 ga.) | |||||||||||||||
| 1 1/2" | 1 1/2" | 1.334" | 1.334" | -0.008" to 0.008" | 304 Stainless Steel | Welded | Not Rated | ASTM A554 | 89825K37 | 00000 | 00000 | 00000 | 000000 | ||
| 2" | 2" | 1.834" | 1.834" | -0.008" to 0.008" | 304 Stainless Steel | Welded | Not Rated | ASTM A554 | 89825K38 | — | 00000 | 00000 | 000000 | ||
0.12" Thick Wall (11 ga.) | |||||||||||||||
| 1" | 1" | 0.76" | 0.76" | -0.012" to 0.012" | 304 Stainless Steel | Welded | Not Rated | ASTM A554 | 89825K39 | 00000 | 00000 | 00000 | 000000 | ||
| 1 1/4" | 1 1/4" | 1.01" | 1.01" | -0.012" to 0.012" | 304 Stainless Steel | Welded | Not Rated | ASTM A554 | 89825K41 | 00000 | 00000 | 00000 | 00000 | ||
| 1 1/2" | 1 1/2" | 1.26" | 1.26" | -0.012" to 0.012" | 304 Stainless Steel | Welded | Not Rated | ASTM A554 | 89825K42 | 00000 | 00000 | 00000 | 000000 | ||
| 2" | 2" | 1.76" | 1.76" | -0.012" to 0.012" | 304 Stainless Steel | Welded | Not Rated | ASTM A554 | 89825K43 | 00000 | 00000 | 000000 | 000000 | ||
| 2 1/2" | 2 1/2" | 2.26" | 2.26" | -0.012" to 0.012" | 304 Stainless Steel | Welded | Not Rated | ASTM A554 | 89825K44 | 00000 | 00000 | 000000 | 000000 | ||
| 3" | 3" | 2.76" | 2.76" | -0.012" to 0.012" | 304 Stainless Steel | Welded | Not Rated | ASTM A554 | 89825K45 | — | 00000 | 000000 | 000000 | ||
| 4" | 4" | 3.76" | 3.76" | -0.012" to 0.012" | 304 Stainless Steel | Welded | Not Rated | ASTM A554 | 89825K46 | 00000 | 00000 | 000000 | 000000 | ||
0.187" Thick Wall (7 ga.) | |||||||||||||||
| 1 1/2" | 1 1/2" | 1.126" | 1.126" | -0.019" to 0.019" | 304 Stainless Steel | Welded | Not Rated | ASTM A554 | 89825K86 | 00000 | 00000 | 000000 | 000000 | ||
| 2" | 2" | 1.626" | 1.626" | -0.019" to 0.019" | 304 Stainless Steel | Welded | Not Rated | ASTM A554 | 89825K87 | 00000 | 00000 | 000000 | 000000 | ||
| 2 1/2" | 2 1/2" | 2.126" | 2.126" | -0.019" to 0.019" | 304 Stainless Steel | Welded | Not Rated | ASTM A554 | 89825K88 | 00000 | 00000 | 000000 | 000000 | ||
| 4" | 4" | 3.626" | 3.626" | -0.019" to 0.019" | 304 Stainless Steel | Welded | Not Rated | ASTM A554 | 89825K89 | 00000 | 000000 | 000000 | 000000 | ||
1/4" Thick Wall | |||||||||||||||
| 3" | 3" | 2 1/2" | 2 1/2" | -0.025" to 0.025" | 304 Stainless Steel | Welded | Not Rated | ASTM A554 | 89825K47 | 00000 | 000000 | 000000 | 000000 | ||
| 4" | 4" | 3 1/2" | 3 1/2" | -0.025" to 0.025" | 304 Stainless Steel | Welded | Not Rated | ASTM A554 | 89825K48 | 000000 | 000000 | 000000 | 000000 | ||
Rectangular Profile | |||||||||||||||
 | |||||||||||||||
0.065" Thick Wall (16 ga.) | |||||||||||||||
| 3/4" | 1 1/2" | 0.62" | 1.37" | -0.007" to 0.007" | 304 Stainless Steel | Welded | Not Rated | ASTM A554 | 89825K56 | 00000 | 00000 | 00000 | 00000 | ||
| 1" | 1 1/2" | 0.87" | 1.37" | -0.007" to 0.007" | 304 Stainless Steel | Welded | Not Rated | ASTM A554 | 89825K23 | 00000 | 00000 | 00000 | 00000 | ||
| 1 1/2" | 2" | 1.37" | 1.87" | -0.007" to 0.007" | 304 Stainless Steel | Welded | Not Rated | ASTM A554 | 89825K24 | 00000 | 00000 | 00000 | 000000 | ||
0.12" Thick Wall (11 ga.) | |||||||||||||||
| 1" | 1 1/2" | 0.76" | 1.26" | -0.012" to 0.012" | 304 Stainless Steel | Welded | Not Rated | ASTM A554 | 89825K57 | 00000 | 00000 | 00000 | 000000 | ||
| 1" | 2" | 0.76" | 1.76" | -0.012" to 0.012" | 304 Stainless Steel | Welded | Not Rated | ASTM A554 | 89825K58 | 00000 | 00000 | 00000 | 000000 | ||
| 1" | 3" | 0.76" | 2.76" | -0.012" to 0.012" | 304 Stainless Steel | Welded | Not Rated | ASTM A554 | 89825K59 | 00000 | 00000 | 000000 | 000000 | ||
| 1 1/2" | 3" | 1.26" | 2.76" | -0.012" to 0.012" | 304 Stainless Steel | Welded | Not Rated | ASTM A554 | 89825K61 | 00000 | 00000 | 000000 | 000000 | ||
| 2" | 3" | 1.76" | 2.76" | -0.012" to 0.012" | 304 Stainless Steel | Welded | Not Rated | ASTM A554 | 89825K63 | 00000 | 00000 | 000000 | 000000 | ||
| 2" | 4" | 1.76" | 3.76" | -0.012" to 0.012" | 304 Stainless Steel | Welded | Not Rated | ASTM A554 | 89825K66 | 00000 | 00000 | 000000 | 000000 | ||
| 2" | 6" | 1.76" | 5.76" | -0.018" to 0.018" | 304 Stainless Steel | Welded | Not Rated | ASTM A554 | 89825K25 | 00000 | 000000 | 000000 | 000000 | ||
0.18" Thick Wall (7 ga.) | |||||||||||||||
| 1 1/2" | 3" | 1.14" | 2.64" | -0.018" to 0.018" | 304 Stainless Steel | Welded | Not Rated | ASTM A554 | 89825K62 | 00000 | 00000 | 000000 | 000000 | ||
| 2" | 3" | 1.64" | 2.64" | -0.018" to 0.018" | 304 Stainless Steel | Welded | Not Rated | ASTM A554 | 89825K64 | 00000 | 00000 | 000000 | 000000 | ||
| 2" | 4" | 1.64" | 3.64" | -0.018" to 0.018" | 304 Stainless Steel | Welded | Not Rated | ASTM A554 | 89825K67 | 00000 | 000000 | 000000 | 000000 | ||
| 2" | 6" | 1.64" | 5.64" | -0.018" to 0.018" | 304 Stainless Steel | Welded | Not Rated | ASTM A554 | 89825K72 | 00000 | 000000 | 000000 | 000000 | ||
| 3" | 4" | 2.64" | 3.64" | -0.018" to 0.018" | 304 Stainless Steel | Welded | Not Rated | ASTM A554 | 89825K69 | 00000 | 000000 | 000000 | 000000 | ||
| 3" | 6" | 2.64" | 5.64" | -0.018" to 0.018" | 304 Stainless Steel | Welded | Not Rated | ASTM A554 | 89825K73 | 000000 | 000000 | 000000 | 000000 | ||
| 4" | 6" | 3.64" | 5.64" | -0.018" to 0.018" | 304 Stainless Steel | Welded | Not Rated | ASTM A554 | 89825K74 | 000000 | 000000 | 000000 | 000000 | ||
1/4" Thick Wall | |||||||||||||||
| 2" | 3" | 1 1/2" | 2 1/2" | -0.025" to 0.025" | 304 Stainless Steel | Welded | Not Rated | ASTM A554 | 89825K65 | 00000 | 000000 | 000000 | 000000 | ||
| 2" | 4" | 1 1/2" | 3 1/2" | -0.025" to 0.025" | 304 Stainless Steel | Welded | Not Rated | ASTM A554 | 89825K26 | 00000 | 000000 | 000000 | 000000 | ||
| 3" | 4" | 2 1/2" | 3 1/2" | -0.025" to 0.025" | 304 Stainless Steel | Welded | Not Rated | ASTM A554 | 89825K71 | 000000 | 000000 | 000000 | 000000 | ||
| 4" | 8" | 3 1/2" | 7 1/2" | -0.025" to 0.025" | 304 Stainless Steel | Welded | Not Rated | ASTM A554 | 89825K27 | 000000 | 000000 | 000000 | 00000000 | ||
Polished Multipurpose 304 Stainless Steel Round Tubes
 |  |
Mirror Like #7 |
Polished to either a brushed or mirror-like finish on the outside, this material is widely used to fabricate decorative enclosures and industrial workstations. 304 stainless steel is a good all-around choice for a wide range of applications. It maintains its corrosion resistance in temperatures up to 1500° F.
Mirror Like #7—This finish is reflective with some visible grain lines.
Welded—The common choice for most structural applications. Since these tubes are formed from a strip that's welded along the length, their strength may vary slightly at the seam under extreme loads.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
OD | OD Tolerance | ID | Fabrication | Hardness | Specs. Met | 1 ft. Long | 3 ft. Long | 6 ft. Long | |||
|---|---|---|---|---|---|---|---|---|---|---|---|
Mirror Like #7 | |||||||||||
0.035" Thick Wall | |||||||||||
| 1/2" | -0.020" to 0.020" | 0.43" | Welded | Rockwell B80 (Medium) | ASTM A554 | 1750T22 | 000000 | 000000 | 000000 | ||
| 3/4" | -0.020" to 0.020" | 0.68" | Welded | Rockwell B80 (Medium) | ASTM A554 | 1750T23 | 00000 | 00000 | 00000 | ||
| 7/8" | -0.005" to 0.005" | 0.805" | Welded | Rockwell B80 (Medium) | ASTM A554 | 1750T24 | 00000 | 00000 | 00000 | ||
| 1" | -0.020" to 0.020" | 0.93" | Welded | Rockwell B80 (Medium) | ASTM A554 | 1750T25 | 00000 | 00000 | 00000 | ||
| 1 1/4" | -0.020" to 0.020" | 1.18" | Welded | Rockwell B80 (Medium) | ASTM A554 | 1750T26 | 00000 | 00000 | 00000 | ||
| 1 1/2" | -0.020" to 0.020" | 1.43" | Welded | Rockwell B80 (Medium) | ASTM A554 | 1750T27 | 00000 | 00000 | 00000 | ||
| 2" | -0.020" to 0.020" | 1.93" | Welded | Rockwell B80 (Medium) | ASTM A554 | 1750T28 | 00000 | 00000 | 000000 | ||
0.049" Thick Wall | |||||||||||
| 1/2" | -0.020" to 0.020" | 0.402" | Welded | Rockwell B80 (Medium) | ASTM A554 | 1750T29 | 00000 | 00000 | 00000 | ||
| 3/4" | -0.020" to 0.020" | 0.652" | Welded | Rockwell B80 (Medium) | ASTM A554 | 1750T11 | 00000 | 00000 | 00000 | ||
| 7/8" | -0.020" to 0.020" | 0.777" | Welded | Rockwell B80 (Medium) | ASTM A554 | 1750T13 | 00000 | 00000 | 00000 | ||
| 1" | -0.020" to 0.020" | 0.902" | Welded | Rockwell B80 (Medium) | ASTM A554 | 1750T15 | 00000 | 00000 | 00000 | ||
| 1 1/4" | -0.020" to 0.020" | 1.152" | Welded | Rockwell B80 (Medium) | ASTM A554 | 1750T17 | 00000 | 00000 | 00000 | ||
| 1 1/2" | -0.020" to 0.020" | 1.402" | Welded | Rockwell B80 (Medium) | ASTM A554 | 1750T19 | 00000 | 00000 | 000000 | ||
| 2" | -0.020" to 0.020" | 1.902" | Welded | Rockwell B80 (Medium) | ASTM A554 | 1750T31 | 00000 | 00000 | 000000 | ||
0.065" Thick Wall | |||||||||||
| 1/2" | -0.020" to 0.020" | 0.37" | Welded | Rockwell B80 (Medium) | ASTM A554 | 1750T32 | 00000 | 00000 | 00000 | ||
| 3/4" | -0.020" to 0.020" | 0.62" | Welded | Rockwell B80 (Medium) | ASTM A554 | 1750T12 | 00000 | 00000 | 00000 | ||
| 7/8" | -0.020" to 0.020" | 0.745" | Welded | Rockwell B80 (Medium) | ASTM A554 | 1750T14 | 00000 | 00000 | 00000 | ||
| 1" | -0.020" to 0.020" | 0.87" | Welded | Rockwell B80 (Medium) | ASTM A554 | 1750T16 | 00000 | 00000 | 00000 | ||
| 1 1/4" | -0.020" to 0.020" | 1.12" | Welded | Rockwell B80 (Medium) | ASTM A554 | 1750T18 | 00000 | 00000 | 000000 | ||
| 1 1/2" | -0.020" to 0.020" | 1.37" | Welded | Rockwell B80 (Medium) | ASTM A554 | 1750T21 | 00000 | 00000 | 000000 | ||
| 2" | -0.020" to 0.020" | 1.87" | Welded | Rockwell B80 (Medium) | ASTM A554 | 1750T33 | 00000 | 000000 | 000000 | ||
0.12" Thick Wall | |||||||||||
| 7/8" | -0.010" to 0.010" | 0.635" | Welded | Rockwell B80 (Medium) | ASTM A554 | 1750T34 | 00000 | 00000 | 000000 | ||
| 1" | -0.020" to 0.020" | 0.76" | Welded | Rockwell B80 (Medium) | ASTM A554 | 1750T35 | 00000 | 00000 | 000000 | ||
| 1 1/8" | -0.020" to 0.020" | 0.885" | Welded | Rockwell B80 (Medium) | ASTM A554 | 1750T36 | 00000 | 00000 | 000000 | ||
| 1 1/4" | -0.020" to 0.020" | 1.01" | Welded | Rockwell B80 (Medium) | ASTM A554 | 1750T37 | 00000 | 00000 | 000000 | ||
| 1 1/2" | -0.020" to 0.020" | 1.26" | Welded | Rockwell B80 (Medium) | ASTM A554 | 1750T38 | 00000 | 000000 | 000000 | ||
| 2" | -0.020" to 0.020" | 1.76" | Welded | Rockwell B80 (Medium) | ASTM A554 | 1750T39 | 00000 | 000000 | 000000 | ||
| 3" | -0.020" to 0.020" | 2.76" | Welded | Rockwell B80 (Medium) | ASTM A554 | 1750T41 | 000000 | 000000 | 000000 | ||
Highly Corrosion-Resistant 316 Stainless Steel Rectangular Tubes
Create flat-sided structural components that hold up in harsh, highly corrosive environments. Formed from flat stainless steel strip and welded along the seam, these tubes have consistent dimensions and gently rounded corners that reduce stress points, improve strength, and create a smooth, easy-to-clean surface. They meet ASTM A554 specifications for use in structural applications but are not for use in fluid-handling or pressure-rated systems. These tubes maintain their corrosion resistance up to 1500° F.
316/316L Stainless Steel—Dual certified to meet both 316 and 316L requirements. The low carbon content makes this stainless steel easy to weld while maintaining strength and corrosion resistance.
Square Profile—Often used for posts and supports where loads can shift or come from multiple directions. With four uniform sides, these tubes distribute loads evenly across their surface. They bend consistently under uniform loads, so orientation is less critical.
Rectangular Profile—Best for beams and other long spans. This shape saves space but is strongest when the load only comes from one direction.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
Outside | Inside | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Ht. | Wd. | Ht. | Wd. | Wall Thk. Tolerance | Material | Fabrication | Hardness | Specs. Met | 1/2 ft. Long | 1 ft. Long | 2 ft. Long | 3 ft. Long | 4 ft. Long | 6 ft. Long | 10 ft. Long | 20 ft. Long | |||
Square Profile | |||||||||||||||||||
| |||||||||||||||||||
0.062" Thick Wall (16 ga.) | |||||||||||||||||||
| 3/4" | 3/4" | 0.626" | 0.626" | -0.006" to 0.006" | 316/316L Stainless Steel | Welded | Rockwell B90 (Medium) | ASTM A554 | 2937K12 | 000000 | 000000 | 000000 | 000000 | 000000 | 000000 | — | — | ||
| 1 1/2" | 1 1/2" | 1.376" | 1.376" | -0.006" to 0.006" | 316/316L Stainless Steel | Welded | Rockwell B90 (Medium) | ASTM A554 | 2937K31 | 00000 | 00000 | 00000 | 00000 | — | 000000 | — | — | ||
| 2" | 2" | 1.876" | 1.876" | -0.006" to 0.006" | 316/316L Stainless Steel | Welded | Rockwell B90 (Medium) | ASTM A554 | 2937K16 | 00000 | 00000 | 00000 | 00000 | 000000 | 000000 | — | — | ||
0.065" Thick Wall (16 ga.) | |||||||||||||||||||
| 1" | 1" | 0.87" | 0.87" | -0.007" to 0.007" | 316/316L Stainless Steel | Welded | Rockwell B90 (Medium) | ASTM A554 | 2937K11 | 00000 | 00000 | 00000 | 00000 | 00000 | 000000 | — | — | ||
0.12" Thick Wall (11 ga.) | |||||||||||||||||||
| 3/4" | 3/4" | 0.51" | 0.51" | -0.012" to 0.012" | 316/316L Stainless Steel | Welded | Rockwell B90 (Medium) | ASTM A554 | 2937K38 | 00000 | 00000 | 00000 | 00000 | 00000 | 000000 | — | — | ||
| 1" | 1" | 0.76" | 0.76" | -0.012" to 0.012" | 316/316L Stainless Steel | Welded | Rockwell B90 (Medium) | ASTM A554 | 2937K13 | 00000 | 00000 | 00000 | 00000 | 00000 | 000000 | 0000000 | 0000000 | ||
| 1 1/4" | 1 1/4" | 1.01" | 1.01" | -0.012" to 0.012" | 316/316L Stainless Steel | Welded | Rockwell B90 (Medium) | ASTM A554 | 2937K14 | 00000 | 00000 | — | 00000 | — | 000000 | — | — | ||
| 1 1/2" | 1 1/2" | 1.26" | 1.26" | -0.012" to 0.012" | 316/316L Stainless Steel | Welded | Rockwell B90 (Medium) | ASTM A554 | 2937K15 | 00000 | 00000 | 00000 | 000000 | 000000 | 000000 | 000000 | — | ||
| 2" | 2" | 1.76" | 1.76" | -0.012" to 0.012" | 316/316L Stainless Steel | Welded | Rockwell B90 (Medium) | ASTM A554 | 2937K17 | 00000 | 00000 | 00000 | 000000 | 000000 | 000000 | 000000 | — | ||
| 2 1/2" | 2 1/2" | 2.26" | 2.26" | -0.012" to 0.012" | 316/316L Stainless Steel | Welded | Rockwell B90 (Medium) | ASTM A554 | 2937K18 | 00000 | 00000 | 000000 | 000000 | — | 000000 | — | — | ||
| 3" | 3" | 2.76" | 2.76" | -0.012" to 0.012" | 316/316L Stainless Steel | Welded | Rockwell B90 (Medium) | ASTM A554 | 2937K19 | 00000 | 00000 | — | 000000 | — | 000000 | — | — | ||
| 4" | 4" | 3.76" | 3.76" | -0.012" to 0.012" | 316/316L Stainless Steel | Welded | Rockwell B90 (Medium) | ASTM A554 | 2937K39 | 00000 | 000000 | 000000 | 000000 | — | 000000 | — | — | ||
0.18" Thick Wall (7 ga.) | |||||||||||||||||||
| 1 1/2" | 1 1/2" | 1.14" | 1.14" | -0.018" to 0.018" | 316/316L Stainless Steel | Welded | Rockwell B90 (Medium) | ASTM A554 | 2937K61 | 00000 | 00000 | — | 000000 | — | 000000 | — | — | ||
| 2" | 2" | 1.64" | 1.64" | -0.018" to 0.018" | 316/316L Stainless Steel | Welded | Rockwell B90 (Medium) | ASTM A554 | 2937K62 | 00000 | 00000 | 000000 | 000000 | 000000 | 000000 | — | — | ||
| 2 1/2" | 2 1/2" | 2.14" | 2.14" | -0.018" to 0.018" | 316/316L Stainless Steel | Welded | Rockwell B90 (Medium) | ASTM A554 | 2937K63 | 00000 | 000000 | — | 000000 | — | 000000 | — | — | ||
| 3" | 3" | 2.64" | 2.64" | -0.018" to 0.018" | 316/316L Stainless Steel | Welded | Rockwell B90 (Medium) | ASTM A554 | 2937K23 | 00000 | 000000 | — | 000000 | — | 000000 | — | — | ||
| 4" | 4" | 3.64" | 3.64" | -0.018" to 0.018" | 316/316L Stainless Steel | Welded | Rockwell B90 (Medium) | ASTM A554 | 2937K65 | 00000 | 000000 | — | 000000 | — | 000000 | — | — | ||
1/4" Thick Wall | |||||||||||||||||||
| 2" | 2" | 1 1/2" | 1 1/2" | -0.025" to 0.025" | 316/316L Stainless Steel | Welded | Rockwell B90 (Medium) | ASTM A554 | 2937K24 | 00000 | 000000 | 000000 | 000000 | 000000 | 000000 | 000000 | — | ||
| 2 1/2" | 2 1/2" | 2" | 2" | -0.025" to 0.025" | 316/316L Stainless Steel | Welded | Rockwell B90 (Medium) | ASTM A554 | 2937K26 | 00000 | 000000 | — | 000000 | — | 000000 | — | — | ||
| 3" | 3" | 2 1/2" | 2 1/2" | -0.025" to 0.025" | 316/316L Stainless Steel | Welded | Rockwell B90 (Medium) | ASTM A554 | 2937K27 | 00000 | 000000 | — | 000000 | — | 000000 | — | — | ||
| 4" | 4" | 3 1/2" | 3 1/2" | -0.025" to 0.025" | 316/316L Stainless Steel | Welded | Rockwell B90 (Medium) | ASTM A554 | 2937K29 | 000000 | 000000 | — | 000000 | — | 000000 | — | — | ||
| 5" | 5" | 4 1/2" | 4 1/2" | -0.025" to 0.025" | 316/316L Stainless Steel | Welded | Rockwell B90 (Medium) | ASTM A554 | 2937K41 | 000000 | 000000 | — | 000000 | — | 00000000 | — | — | ||
| 6" | 6" | 5 1/2" | 5 1/2" | -0.025" to 0.025" | 316/316L Stainless Steel | Welded | Rockwell B90 (Medium) | ASTM A554 | 2937K42 | 000000 | 000000 | — | 000000 | — | 00000000 | — | — | ||
3/8" Thick Wall | |||||||||||||||||||
| 4" | 4" | 3 1/4" | 3 1/4" | -0.037" to 0.037" | 316/316L Stainless Steel | Welded | Rockwell B90 (Medium) | ASTM A554 | 2937K51 | 000000 | 000000 | — | 00000000 | — | 00000000 | — | — | ||
| 5" | 5" | 4 1/4" | 4 1/4" | -0.037" to 0.037" | 316/316L Stainless Steel | Welded | Rockwell B90 (Medium) | ASTM A554 | 2937K52 | 000000 | 000000 | — | 00000000 | — | 00000000 | — | — | ||
| 6" | 6" | 5 1/4" | 5 1/4" | -0.037" to 0.037" | 316/316L Stainless Steel | Welded | Rockwell B90 (Medium) | ASTM A554 | 2937K53 | 000000 | 000000 | — | 00000000 | — | 00000000 | — | — | ||
| 8" | 8" | 7 1/4" | 7 1/4" | -0.037" to 0.037" | 316/316L Stainless Steel | Welded | Rockwell B90 (Medium) | ASTM A554 | 2937K54 | 000000 | 000000 | — | 00000000 | — | 00000000 | — | — | ||
Rectangular Profile | |||||||||||||||||||
| |||||||||||||||||||
0.062" Thick Wall (16 ga.) | |||||||||||||||||||
| 1" | 3" | 0.876" | 2.876" | -0.006" to 0.006" | 316/316L Stainless Steel | Welded | Rockwell B90 (Medium) | ASTM A554 | 2937K76 | 00000 | 00000 | 00000 | 000000 | — | 000000 | — | — | ||
0.12" Thick Wall (11 ga.) | |||||||||||||||||||
| 1" | 1 1/2" | 0.76" | 1.26" | -0.012" to 0.012" | 316/316L Stainless Steel | Welded | Rockwell B90 (Medium) | ASTM A554 | 2937K32 | 00000 | 00000 | 00000 | 00000 | — | 000000 | — | — | ||
| 1" | 2" | 0.76" | 1.76" | -0.012" to 0.012" | 316/316L Stainless Steel | Welded | Rockwell B90 (Medium) | ASTM A554 | 2937K33 | 00000 | 00000 | 00000 | 000000 | — | 000000 | — | — | ||
| 1" | 3" | 0.76" | 2.76" | -0.012" to 0.012" | 316/316L Stainless Steel | Welded | Rockwell B90 (Medium) | ASTM A554 | 2937K34 | 00000 | 00000 | — | 000000 | — | 000000 | — | — | ||
| 2" | 3" | 1.76" | 2.76" | -0.012" to 0.012" | 316/316L Stainless Steel | Welded | Rockwell B90 (Medium) | ASTM A554 | 2937K35 | 00000 | 00000 | 000000 | 000000 | — | 000000 | — | — | ||
| 2" | 4" | 1.76" | 3.76" | -0.012" to 0.012" | 316/316L Stainless Steel | Welded | Rockwell B90 (Medium) | ASTM A554 | 2937K36 | 00000 | 000000 | 000000 | 000000 | — | 000000 | — | — | ||
0.18" Thick Wall (7 ga.) | |||||||||||||||||||
| 2" | 3" | 1.64" | 2.64" | -0.018" to 0.018" | 316/316L Stainless Steel | Welded | Rockwell B90 (Medium) | ASTM A554 | 2937K71 | 00000 | 000000 | — | 000000 | — | 000000 | — | — | ||
| 2" | 4" | 1.64" | 3.64" | -0.018" to 0.018" | 316/316L Stainless Steel | Welded | Rockwell B90 (Medium) | ASTM A554 | 2937K21 | 00000 | 000000 | — | 000000 | — | 000000 | — | — | ||
1/4" Thick Wall | |||||||||||||||||||
| 2" | 4" | 1 1/2" | 3 1/2" | -0.025" to 0.025" | 316/316L Stainless Steel | Welded | Rockwell B90 (Medium) | ASTM A554 | 2937K25 | 000000 | 000000 | — | 000000 | — | 000000 | — | — | ||
| 3" | 4" | 2 1/2" | 3 1/2" | -0.025" to 0.025" | 316/316L Stainless Steel | Welded | Rockwell B90 (Medium) | ASTM A554 | 2937K81 | 000000 | 000000 | — | 000000 | — | 00000000 | — | — | ||
| 3" | 6" | 2 1/2" | 5 1/2" | -0.025" to 0.025" | 316/316L Stainless Steel | Welded | Rockwell B90 (Medium) | ASTM A554 | 2937K82 | 000000 | 000000 | — | 000000 | — | 00000000 | — | — | ||
| 4" | 6" | 3 1/2" | 5 1/2" | -0.025" to 0.025" | 316/316L Stainless Steel | Welded | Rockwell B90 (Medium) | ASTM A554 | 2937K83 | 000000 | 000000 | — | 000000 | — | 00000000 | — | — | ||
| 4" | 8" | 3 1/2" | 7 1/2" | -0.025" to 0.025" | 316/316L Stainless Steel | Welded | Rockwell B90 (Medium) | ASTM A554 | 2937K84 | 000000 | 000000 | — | 000000 | — | 00000000 | — | — | ||
3/8" Thick Wall | |||||||||||||||||||
| 4" | 6" | 3 1/4" | 5 1/4" | -0.037" to 0.037" | 316/316L Stainless Steel | Welded | Rockwell B90 (Medium) | ASTM A554 | 2937K91 | 000000 | 000000 | — | 00000000 | — | 00000000 | — | — | ||
Textured Multipurpose 304 Stainless Steel Round Tubes
 |
The textured surface on these tubes gives you a secure grip, even in wet conditions, while hiding fingerprints and dents. They’re often used for decorative applications, such as partitions and handrails. 304 stainless steel is a good all-around choice that maintains its corrosion resistance in temperatures up to 1500° F.
Welded—The common choice for most structural applications. Since these tubes are formed from a strip that's welded along the length, their strength may vary slightly at the seam under extreme loads.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
OD | OD Tolerance | ID | Material | Fabrication | Hardness | Specs. Met | Texture | 1 ft. Long | 3 ft. Long | 6 ft. Long | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
0.048" Thick Wall | |||||||||||||
| 1 1/4" | -0.005" to 0.005" | 1.12" | 304 Stainless Steel | Welded | Rockwell B90 (Medium) | ASTM A554 | Diamond | 7427K11 | 000000 | 000000 | 000000 | ||
| 1 1/2" | -0.005" to 0.005" | 1.37" | 304 Stainless Steel | Welded | Rockwell B90 (Medium) | ASTM A554 | Diamond | 7427K14 | 00000 | 00000 | 00000 | ||
0.06" Thick Wall | |||||||||||||
| 1 1/4" | -0.005" to 0.005" | 1.1" | 304 Stainless Steel | Welded | Rockwell B90 (Medium) | ASTM A554 | Diamond | 7427K17 | 00000 | 00000 | 00000 | ||
| 1 1/2" | -0.005" to 0.005" | 1.35" | 304 Stainless Steel | Welded | Rockwell B90 (Medium) | ASTM A554 | Diamond | 7427K21 | 00000 | 00000 | 00000 | ||
Polished Highly Corrosion-Resistant 316 Stainless Steel Rectangular Tubes
 |
 |
Brushed #4 |
Polished to a brushed finish on the outside, these tubes are often used to create decorative enclosures and industrial workstations in environments that require superior corrosion resistance. Formed from flat stainless steel strip and welded along the seam, these tubes have consistent dimensions and gently rounded corners that reduce stress points, improve strength, and create a smooth, easy-to-clean surface. They meet ASTM A554 for use in structural applications but are not for use in fluid-handling or pressure-rated systems. These tubes maintain their corrosion resistance up to 1500° F.
Square Profile—Often used for posts and supports where loads can shift or come from multiple directions. With four uniform sides, these tubes distribute loads evenly across their surface. They bend consistently under uniform loads, so orientation is less critical.
Brushed #4—Often called a satin finish, it’s similar to a #3 finish but has finer, more uniform grain lines. It provides a smooth, directional grain for a clean, decorative appearance often used in architectural, food-processing, and sanitary applications.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
Outside | Inside | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Ht. | Wd. | Ht. | Wd. | Wall Thk. Tolerance | Appearance | Fabrication | Hardness | Specs. Met | 1 ft. Long | 3 ft. Long | 6 ft. Long | |||
Square Profile | ||||||||||||||
0.12" Thick Wall (11 ga.) | ||||||||||||||
| 3/4" | 3/4" | 0.51" | 0.51" | -0.012" to 0.012" | Brushed #4 | Welded | Rockwell B95 (Medium) | ASTM A554 | 9534N1 | 000000 | 000000 | 0000000 | ||
| 1" | 1" | 0.76" | 0.76" | -0.012" to 0.012" | Brushed #4 | Welded | Rockwell B95 (Medium) | ASTM A554 | 9534N2 | 00000 | 000000 | 000000 | ||
| 1 1/2" | 1 1/2" | 1.26" | 1.26" | -0.012" to 0.012" | Brushed #4 | Welded | Rockwell B95 (Medium) | ASTM A554 | 9534N3 | 00000 | 000000 | 000000 | ||
| 2" | 2" | 1.76" | 1.76" | -0.012" to 0.012" | Brushed #4 | Welded | Rockwell B95 (Medium) | ASTM A554 | 9534N5 | 00000 | 000000 | 000000 | ||
1/4" Thick Wall | ||||||||||||||
| 2" | 2" | 1 1/2" | 1 1/2" | -0.025" to 0.025" | Brushed #4 | Welded | Rockwell B95 (Medium) | ASTM A554 | 9534N4 | 000000 | 000000 | 000000 | ||
| 3" | 3" | 2 1/2" | 2 1/2" | -0.025" to 0.025" | Brushed #4 | Welded | Rockwell B95 (Medium) | ASTM A554 | 9534N6 | 000000 | 000000 | 000000 | ||
| 4" | 4" | 3 1/2" | 3 1/2" | -0.025" to 0.025" | Brushed #4 | Welded | Rockwell B95 (Medium) | ASTM A554 | 9534N7 | 000000 | 000000 | 000000 | ||
Polished Multipurpose 304 Stainless Steel Rectangular Tubes
 |
Square Profile |
 |
Rectangular Profile |
|
Brushed #4 |
Polished to a brushed finish on the outside, these tubes are often used to create decorative enclosures and industrial workstations that hold up in corrosive environments. They have flat sides, which make them easy to mount. Formed from flat stainless steel strip and welded along the seam, these tubes have consistent dimensions and gently rounded corners that reduce stress points, improve strength, and create a smooth, easy-to-clean surface. They meet ASTM A554 specifications for use in structural applications but are not for use in fluid-handling or pressure-rated systems. These tubes maintain their corrosion resistance up to 1500° F.
Square Profile—Often used for posts and supports where loads can shift or come from multiple directions. With four uniform sides, these tubes distribute loads evenly across their surface. They bend consistently under uniform loads, so orientation is less critical.
Rectangular Profile—Best for beams and other long spans. This shape saves space but is strongest when the load only comes from one direction.
Brushed #4—Often called a satin finish, it’s similar to a #3 finish but has finer, more uniform grain lines. It provides a smooth, directional grain for a clean, decorative appearance often used in architectural, food-processing, and sanitary applications.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
Outside | Inside | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Ht. | Wd. | Ht. | Wd. | Wall Thk. Tolerance | Appearance | Fabrication | Hardness | Specs. Met | 1 ft. Long | 3 ft. Long | 6 ft. Long | |||
Square Profile | ||||||||||||||
0.048" Thick Wall (18 ga.) | ||||||||||||||
| 3/4" | 3/4" | 0.654" | 0.654" | -0.0048" to 0.0048" | Brushed #4 | Welded | Rockwell B90 (Medium) | ASTM A554 | 89825K203 | 000000 | 000000 | 000000 | ||
| 1" | 1" | 0.904" | 0.904" | -0.0048" to 0.0048" | Brushed #4 | Welded | Rockwell B90 (Medium) | ASTM A554 | 89825K212 | 00000 | 00000 | 00000 | ||
0.065" Thick Wall (16 ga.) | ||||||||||||||
| 1/2" | 1/2" | 0.37" | 0.37" | -0.007" to 0.007" | Brushed #4 | Welded | Rockwell B90 (Medium) | ASTM A554 | 89825K189 | 00000 | 00000 | 00000 | ||
| 3/4" | 3/4" | 0.62" | 0.62" | -0.007" to 0.007" | Brushed #4 | Welded | Rockwell B90 (Medium) | ASTM A554 | 89825K198 | 00000 | 00000 | 00000 | ||
| 1" | 1" | 0.87" | 0.87" | -0.007" to 0.007" | Brushed #4 | Welded | Rockwell B90 (Medium) | ASTM A554 | 89825K136 | 00000 | 00000 | 00000 | ||
| 1 1/4" | 1 1/4" | 1.12" | 1.12" | -0.007" to 0.007" | Brushed #4 | Welded | Rockwell B90 (Medium) | ASTM A554 | 89825K281 | 00000 | 00000 | 00000 | ||
| 1 1/2" | 1 1/2" | 1.37" | 1.37" | -0.007" to 0.007" | Brushed #4 | Welded | Rockwell B90 (Medium) | ASTM A554 | 89825K145 | 00000 | 00000 | 000000 | ||
| 2" | 2" | 1.87" | 1.87" | -0.007" to 0.007" | Brushed #4 | Welded | Rockwell B90 (Medium) | ASTM A554 | 89825K289 | 00000 | 00000 | 000000 | ||
0.12" Thick Wall (11 ga.) | ||||||||||||||
| 3/4" | 3/4" | 0.51" | 0.51" | -0.012" to 0.012" | Brushed #4 | Welded | Rockwell B90 (Medium) | ASTM A554 | 89825K194 | 00000 | 00000 | 000000 | ||
| 1" | 1" | 0.76" | 0.76" | -0.012" to 0.012" | Brushed #4 | Welded | Rockwell B90 (Medium) | ASTM A554 | 89825K207 | 00000 | 00000 | 000000 | ||
| 1 1/4" | 1 1/4" | 1.01" | 1.01" | -0.012" to 0.012" | Brushed #4 | Welded | Rockwell B90 (Medium) | ASTM A554 | 89825K216 | 00000 | 00000 | 000000 | ||
| 1 1/2" | 1 1/2" | 1.26" | 1.26" | -0.012" to 0.012" | Brushed #4 | Welded | Rockwell B90 (Medium) | ASTM A554 | 89825K141 | 00000 | 00000 | 000000 | ||
| 2" | 2" | 1.76" | 1.76" | -0.012" to 0.012" | Brushed #4 | Welded | Rockwell B90 (Medium) | ASTM A554 | 89825K149 | 00000 | 000000 | 000000 | ||
| 2 1/2" | 2 1/2" | 2.26" | 2.26" | -0.012" to 0.012" | Brushed #4 | Welded | Rockwell B90 (Medium) | ASTM A554 | 89825K298 | 00000 | 000000 | 000000 | ||
| 3" | 3" | 2.76" | 2.76" | -0.012" to 0.012" | Brushed #4 | Welded | Rockwell B90 (Medium) | ASTM A554 | 89825K307 | 000000 | 000000 | 000000 | ||
| 4" | 4" | 3.76" | 3.76" | -0.012" to 0.012" | Brushed #4 | Welded | Rockwell B90 (Medium) | ASTM A554 | 89825K801 | 000000 | 000000 | 000000 | ||
0.18" Thick Wall (7 ga.) | ||||||||||||||
| 2" | 2" | 1.64" | 1.64" | -0.018" to 0.018" | Brushed #4 | Welded | Rockwell B90 (Medium) | ASTM A554 | 89825K294 | 00000 | 000000 | 000000 | ||
| 3" | 3" | 2.64" | 2.64" | -0.018" to 0.018" | Brushed #4 | Welded | Rockwell B90 (Medium) | ASTM A554 | 89825K501 | 000000 | 000000 | 000000 | ||
| 4" | 4" | 3.64" | 3.64" | -0.018" to 0.018" | Brushed #4 | Welded | Rockwell B90 (Medium) | ASTM A554 | 89825K805 | 000000 | 000000 | 000000 | ||
1/4" Thick Wall | ||||||||||||||
| 2" | 2" | 1.50" | 1.50" | -0.025" to 0.025" | Brushed #4 | Welded | Rockwell B90 (Medium) | ASTM A554 | 89825K285 | 000000 | 000000 | 000000 | ||
| 3" | 3" | 2.50" | 2.50" | -0.025" to 0.025" | Brushed #4 | Welded | Rockwell B90 (Medium) | ASTM A554 | 89825K303 | 000000 | 000000 | 000000 | ||
| 4" | 4" | 3.50" | 3.50" | -0.025" to 0.025" | Brushed #4 | Welded | Rockwell B90 (Medium) | ASTM A554 | 89825K505 | 000000 | 000000 | 000000 | ||
Rectangular Profile | ||||||||||||||
0.065" Thick Wall (16 ga.) | ||||||||||||||
| 3/4" | 1" | 0.62" | 0.87" | -0.007" to 0.007" | Brushed #4 | Welded | Rockwell B90 (Medium) | ASTM A554 | 89825K154 | 00000 | 00000 | 000000 | ||
0.12" Thick Wall (11 ga.) | ||||||||||||||
| 1" | 1 1/2" | 0.76" | 1.26" | -0.012" to 0.012" | Brushed #4 | Welded | Rockwell B90 (Medium) | ASTM A554 | 89825K158 | 00000 | 00000 | 000000 | ||
| 1" | 2" | 0.76" | 1.76" | -0.012" to 0.012" | Brushed #4 | Welded | Rockwell B90 (Medium) | ASTM A554 | 89825K163 | 00000 | 00000 | 000000 | ||
| 1 1/2" | 3" | 1.26" | 2.76" | -0.012" to 0.012" | Brushed #4 | Welded | Rockwell B90 (Medium) | ASTM A554 | 89825K167 | 00000 | 000000 | 000000 | ||
| 2" | 4" | 1.76" | 3.76" | -0.012" to 0.012" | Brushed #4 | Welded | Rockwell B90 (Medium) | ASTM A554 | 89825K181 | 000000 | 000000 | 000000 | ||
0.18" Thick Wall (7 ga.) | ||||||||||||||
| 2" | 3" | 1.64" | 2.64" | -0.018" to 0.018" | Brushed #4 | Welded | Rockwell B90 (Medium) | ASTM A554 | 89825K172 | 00000 | 000000 | 000000 | ||
| 2" | 4" | 1.64" | 3.64" | -0.018" to 0.018" | Brushed #4 | Welded | Rockwell B90 (Medium) | ASTM A554 | 89825K185 | 000000 | 000000 | 000000 | ||
1/4" Thick Wall | ||||||||||||||
| 2" | 4" | 1.50" | 3.50" | -0.025" to 0.025" | Brushed #4 | Welded | Rockwell B90 (Medium) | ASTM A554 | 89825K176 | 000000 | 000000 | 000000 | ||
