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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 Rectangular Tubes
Also known as mild steel, low-carbon steel is easy to machine, form, and weld. These tubes are often fabricated into parts that don’t require high strength, such as frames, supports, and raceways. To increase their wear resistance, you can surface harden them with heat treating. These tubes are manufactured to ASTM or EN standards for quality and performance.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
Tubes
- Yield Strength: See table
- Hardness: Not Rated
- Heat Treatable: Yes
- Max. Hardness After Heat Treatment: Not Rated
- Fabrication: Welded
- Specifications Met: See table
Outside | Inside | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ht. | Wd. | Ht. | Wd. | Yield Strength, psi  | Specifications Met | Straightness Tolerance | 1 ft. Lg. | 2 ft. Lg. | 3 ft. Lg. | 4 ft. Lg. | 6 ft. Lg. | 8 ft. Lg. | |
0.065" Wall Thick. | |||||||||||||
| 1/2" | 1 1/2" | 0.37" | 1.37" | 32,000 | ASTM A513 Type 1 | __ | 0000000 | ||||||
| 1 1/2" | 1 1/2" | 1.37" | 1.37" | 32,000 | ASTM A513 Type 1 | 1/16" per 3 ft. | 0000000 | ||||||
0.12" Wall Thick. | |||||||||||||
| 1 1/2" | 2 1/2" | 1.26" | 2.26" | 32,000 | ASTM A513 Type 1 | 1/16" per 3 ft. | 0000000 | ||||||
Metric Tubes
- Yield Strength: 34,000 psi
- Hardness: Rockwell B65 (Medium)
- Heat Treatable: Yes
- Max. Hardness After Heat Treatment: Not Rated
- Fabrication: Welded
- Specifications Met: EN 10305-5