Home > Carbon Steel > ST 35/ST 35.8 Tubing
Mirza Pipe and Tubes, located in Riyadh, Saudi Arabia, stands out as a reliable manufacturer and supplier of top-notch carbon steel tubing solutions tailored for industrial, mechanical, and pressure applications. Their ST 35 / ST 35.8 Tubing is crafted to comply with DIN 2391 and DIN 17175 standards, ensuring remarkable strength, precision, and durability. These seamless carbon steel tubes find their place in heat exchangers, boilers, mechanical systems, and hydraulic lines. With a keen focus on dimensional accuracy and exceptional surface quality, Mirza provides tubing designed for consistent performance, even under varying pressure and temperature conditions.
The ST 35 and ST 35.8 Tubing is made from low-carbon steel, known for its excellent weldability and formability. Specifically, ST 35.8 is ideal for high-pressure settings like boiler systems and pressure vessels. These tubes generally boast a yield strength ranging from 235 to 275 MPa and exhibit high toughness. Some of their standout features include outstanding thermal conductivity, resistance to deformation under load, smooth internal surfaces, and compatibility with machining, bending, and welding processes.
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 |