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Irfan Pipes and Tubes, located in Istanbul, Turkey, has built a solid reputation as a reliable manufacturer and supplier of ST 35/ST 35.8 Tubing, providing top-notch tubing solutions for various industries around the globe. The company is well-regarded for its precision engineering and commitment to international standards, ensuring that their products deliver outstanding performance, durability, and consistency. Irfan’s ST 35/ST 35.8 Tubing is particularly noted for its impressive strength, toughness, and ability to withstand pressure, making it perfect for critical applications. With state-of-the-art production facilities and rigorous quality controls, they offer dependable tubing that meets the demands of global industry standards.
The ST 35/ST 35.8 Tubing is primarily made from carbon steel, featuring a carefully controlled chemical composition that includes specific amounts of carbon, manganese, phosphorus, and sulfur, all of which contribute to its excellent toughness and workability. These tubes boast strong mechanical properties, including high tensile strength, good yield strength, and resistance to impact. The ST 35.8 variant, designed for pressure applications, provides enhanced performance in high-temperature and high-pressure situations, making it ideal for environments under significant stress. Its seamless design allows for better pressure handling and superior structural integrity compared to welded tubing.
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 |