Home > Carbon Steel > ST 35/ST 35.8 Tubing
Rashdan Pipes and Tubes, based in Amman, Jordan, proudly manufactures ST 35 and ST 35.8 Tubing, offering unmatched reliability and precision for industrial applications. Designed with durability and performance in mind, these tubes provide consistent quality under demanding conditions. Every piece is crafted to meet strict international standards, ensuring superior strength, stability, and longevity. Ideal for engineering, mechanical, and manufacturing industries, Rashdan’s ST 35/ST 35.8 Tubing combines precision workmanship with robustness, making it the trusted choice for engineers and industries seeking safe, efficient, and high-performing tubing solutions for fluid transport, structural support, and industrial systems.
ST 35 and ST 35.8 are carbon steel grades designed for strength and durability. They typically contain 0.17–0.22% carbon, 0.3–0.7% manganese, with minimal sulfur and phosphorus. Mechanical properties include tensile strength of approximately 450–500 MPa, yield strength around 250 MPa, and elongation of 20–25%. These tubes provide excellent weldability, machinability, and toughness. Their high structural integrity ensures reliable performance under pressure, making them suitable for mechanical, structural, and fluid transport systems where safety, resilience, and long-term stability are essential.
| 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 |