Home > Carbon Steel > ST 35/ST 35.8 Tubing
David Pipes and Tubes is a reputable manufacturer and supplier located in Canberra, Australia, with a focus on high-quality ST 35/ST 35.8 Tubing. This carbon steel tubing is celebrated for its impressive strength, durability, and reliability, crafted to meet international standards for consistent performance across industrial, structural, and mechanical applications. The team at David Pipes and Tubes prioritizes precision engineering and rigorous quality control, ensuring that their products offer both long-lasting service and cost-effectiveness. Their ST 35/ST 35.8 Tubing is perfect for clients looking for strong and adaptable solutions for construction, machinery, and automotive projects, delivering outstanding performance even in tough operating conditions.
The ST 35/ST 35.8 Tubing is mainly made up of carbon (0.17–0.20%), manganese (0.5–0.8%), phosphorus (≤0.035%), sulfur (≤0.035%), with iron making up the rest. This specific composition results in a tensile strength of about 430–560 MPa and a yield strength of around 235–360 MPa, along with good ductility and toughness. The tubing is also known for its reliable weldability and formability, making it suitable for a variety of fabrication, mechanical, and structural uses. Its mechanical properties guarantee durability and long-lasting performance, even in industrial and high-stress environments.
| Standard | Grade | C | Si | Mn | P max | S max |
| DIN2391 | St35 | ≤0.17 | ≤0.35 | ≥0.4 | 0.025 | 0.025 |
| Cold drawn(Mandatory) | Cold drawn(Soft) | Cold Drawn and Stress Release | Anneal | Normalizing | ||||||||
| BK1) | BKW1) | (BKS) | (GBK)1) | (NBK)1) | ||||||||
| Grade | Tensile | Elongation | Tensile | Elongation | Tensile | Yield point | Elongation | Tensile | Elongation | Tensile | Yield point | Elongation |
| N/mm2 | % | N/mm2 | % | N/mm2 | N/mm2 | % | N/mm2 | % | N/mm2 | N/mm2 | % | |
| St35 | 480 | 6 | 420 | 10 | 420 | 315 | 14 | 315 | 35 | 340~470 | 235 | 25 |