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About Steel
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Compare over 50 grades of steel and cast iron to find the right material for you—all with material certificates for traceability.
Low-Carbon Steel Round Tubes
Also known as mild steel, low-carbon steel is easy to machine, form, and weld. It's widely fabricated into parts that don’t require high strength, such as frames, supports, and conduit. This steel is manufactured to ASTM, SAE, or EN standards for quality and performance.
DOM (drawn over mandrel) welded tubes are stronger than ERW (electric resistance welded) tubes.
Heat treatable tubes can be surface hardened. Tubes that are stress relieved minimize warping during machining.
Tubes
| OD | ID | Yield Strength, psi  | Fabrication | Weld Method | Heat Treatable | Heat Treatment | Hardness | Specifications Met | 1/2 ft. Lg. | 1 ft. Lg. | 3 ft. Lg. | 4 ft. Lg. | 6 ft. Lg. | 8 ft. Lg. | 12 ft. Lg. | |
0.12" Wall Thick. | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/2" | 0.26" | 55,000 | Welded | DOM (Drawn Over Mandrel) | No | __ | Rockwell B75 (Medium) | ASTM A513 Type 5 | 0000000 | |||||||
| 9/16" | 0.323" | 55,000 | Welded | DOM (Drawn Over Mandrel) | Yes | Stress Relieved | Rockwell B75 (Medium) | ASTM A513 Type 5 | 0000000 | |||||||
| 5/8" | 0.385" | 55,000 | Welded | DOM (Drawn Over Mandrel) | No | Stress Relieved | Rockwell B75 (Medium) | ASTM A513 Type 5 | 00000000 | |||||||
| 13/16" | 0.573" | 55,000 | Welded | DOM (Drawn Over Mandrel) | Yes | Stress Relieved | Rockwell B75 (Medium) | ASTM A513 Type 5 | 0000000 | |||||||
| 1 1/16" | 0.823" | 55,000 | Welded | DOM (Drawn Over Mandrel) | Yes | Stress Relieved | Rockwell B75 (Medium) | ASTM A513 Type 5 | 0000000 | |||||||
0.134" Wall Thick. | ||||||||||||||||
| 1" | 0.732" | 55,000 | Welded | DOM (Drawn Over Mandrel) | Yes | Stress Relieved | Rockwell B75 (Medium) | ASTM A513 Type 5 | 0000000 | |||||||
0.188" Wall Thick. | ||||||||||||||||
| 4" | 3 5/8" | 55,000 | Welded | DOM (Drawn Over Mandrel) | Yes | Stress Relieved | Rockwell B75 (Medium) | ASTM A513 Type 5 | 0000000 | |||||||
1/4" Wall Thick. | ||||||||||||||||
| 3 1/4" | 2 3/4" | 55,000 | Welded | DOM (Drawn Over Mandrel) | Yes | Stress Relieved | Rockwell B75 (Medium) | ASTM A513 Type 5 | 0000000 | |||||||
| OD | ID | Yield Strength, psi | Fabrication | Weld Method | Heat Treatable | Heat Treatment | Hardness | Specifications Met | Each | |
1" Lg. | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
1/4" Wall Thick. | ||||||||||
| 3" | 2 1/2" | 55,000 | Welded | DOM (Drawn Over Mandrel) | Yes | Stress Relieved | Rockwell B75 (Medium) | ASTM A513 Type 5 | 00000000 | 000000 |
| 3 1/2" | 3" | 55,000 | Welded | DOM (Drawn Over Mandrel) | Yes | Stress Relieved | Rockwell B75 (Medium) | ASTM A513 Type 5 | 00000000 | 00000 |
3" Lg. | ||||||||||
1/4" Wall Thick. | ||||||||||
| 3" | 2 1/2" | 55,000 | Welded | DOM (Drawn Over Mandrel) | Yes | Stress Relieved | Rockwell B75 (Medium) | ASTM A513 Type 5 | 00000000 | 00000 |
| 3 1/2" | 3" | 55,000 | Welded | DOM (Drawn Over Mandrel) | Yes | Stress Relieved | Rockwell B75 (Medium) | ASTM A513 Type 5 | 00000000 | 00000 |