DIN 17175 ST35.8 seamless steel pipe is a heat-resistant pipe made of high-quality carbon steel material and complies with the German standard DIN 17175.
DIN 17175 St35.8 steel tubes are high pressure boiler tubes made of carbon and low alloy steel. These pipes can withstand high temperatures and pressures and are suitable for use in power plants, chemical plants and other industrial applications that require high-performance pipes.
ST35.8 is a high-gloss cold-rolled precision steel pipe. It is a high-precision, high-brightness seamless steel pipe produced through cold drawing or cold rolling processes. Its inner and outer diameter dimensions can be accurate to within 0.2mm. When the bending and torsion strengths are the same, the weight is lighter. It is used to manufacture mechanical structures, hydraulic equipment, auto parts, steel sleeves, and is also commonly used to produce various conventional weapons, gun barrels, shells, etc.
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heat treatment temperature of DIN ST35.8 Boiler tube
Hot working is possible from 1100 to 850°C, and the temperature can be reduced to 750 °C during processing.
| Steel Grade | Thermal processing ℃ | Normalizing℃ | Tempering | ||
| Grade | Material number | Quenching temperature ℃ | Tempering temperature ℃ | ||
| St35.8 | 1.0305 | 1100 to 850°C | 900-930 | - | - |
Chemical composition of DIN 17175 St35.8 Seamless Carbon Steel Tube
| Standard | grade | Chemical composition | |||||
| C | Si | Mn | P,S | Cr | Mo | ||
| DIN 17175 | St35.8 | ≤0.17 | 0.10-0.35 | 0.40-0.80 | ≤0.030 | / | / |
Mechanical property of DIN 17175 heat-resistant seamless steel pipe
| Standard | grade | Tensile Strength(MPa) | Yield Strength(MPa) | Elongation(%) |
| DIN 17175 | St35.8 | 360-480 | ≥235 | ≥25 |
Specification Of DIN 17175, St35.8 Seamless Steel Pipe
| Out diameter(mm) | 21mm-914mm |
| Wall thickness(mm) | SCH10,SCH20,SCH30,SCH40,SCH60,SCH80,SCH160,SCHXXS |
| Standard | DIN 17175 |
| Quality grade | First Grade |
| Material | St.35.8, St.45.8, St.13CrMo44 |
| Treatment | Ends plain or beveled/Varnish coating or not,etc,also according to the customers requirements. |
| Specification | Round |
| Length | 3M-12M,we can customize just for you. |
Seamless st35.8 carbon pipe
GNEE steel pipes are widely used in high, medium and low pressure fluid transportation pipelines such as oil, natural gas, water, steam, and gas, as well as structural steel pipes for piling, bridges, buildings, etc.
We export to more than 80 regions including Southeast Asia, the Middle East, South America, Africa, North America, and Europe.
GNEE Additional value-added services
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AR(As Hot Rolled only)
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N(Normalized)
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