Rectangular Hollow structural tubes are manufactured from flat steel strips which are formed by continuous sets of rolls. The strips of the edges are heated at big induction welders and then forged together through the welding rolls. Therefore, they are produced into longitudinal welds without any filler metals. Then, weld tubes are cooled down and processed through sizing rolls rectangular tubes.
List of features includes:
- Consistent physical features prevent any drastic variations or fabrication
- The product is well tested with excellent machinability and high strength
- Insured and tested for quality assurance
- High resistance to torsional loading
- Excellent surface condition Wide variety of shapes and wall thicknesses are available
- Ready and available in our stocks in lengths of 6 meters
Standard: St 12 (DIN 1623), CS, DS [ASTM A1008], ASTM A500/A500M, Grade A, B & C.
Uses: There is huge scope of this standard – The tubes can be used to support columns and trusses, storage systems, highway guardrails and so on.
Technical Data:
| Chemical Properties | ||
| Elements | Composition % | |
| Grade A & B | Grade C | |
| Product Analysis | ||
| Carbon, max | 0.30 | 0.27 |
| Maganese, max | 1.40 | 1.40 |
| Phosphorus, max | 0.045 | 0.045 |
| Sulfur, max | 0.045 | 0.045 |
| Tensile Properties | |||
| Grade A | Grade B | Grade C | |
| Tensile strength, min, psi, [MPa] | 45000 [310] |
58000 [400] |
62000 [425] |
| Yield strength, min, psi, [MPa] | 39000 [270] |
46000 [315] |
50000 [345] |
| Dimensional Properties as per ASTM A500 standard | |||