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DIN 17175 St45.8 seamless steel pipe is made of carbon steel and low alloy steel. It is a pipe specially created for high-pressure boilers.
It is widely used in the construction of power plants, refineries and various industrial plants. The minimum yield strength of St45.8 carbon steel pipe is 255 MPa and the minimum tensile strength is 410 MPa. Produced according to DIN 17175 standards, ensuring its excellent heat resistance and technical quality.
DIN 17175 St45.8 seamless steel pipe has high thermal conductivity, long life, and can withstand the severe test of high temperature and high pressure. A wide range of size and thickness options enable it to meet a variety of application needs.
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Heat treatment temperature of DIN 17175 St45.8 Cold Drawn Seamless pipe
| Steel Grade | Thermal processing ℃ | Normalizing℃ | Tempering | ||
| Grade | Material number | Quenching temperature ℃ | Tempering temperature ℃ | ||
| St45.8 | 1.0405 | 1100 to 850°C | 870-900 | - | - |
Chemical composition of DIN 17175 St45.8 Seamless Steel Pipe Boiler Tube
| Standard:DIN 17175 | grade | Chemical composition | |||||
| C | Si | Mn | P,S | Cr | Mo | ||
| St45.8 | ≤0.21 | 0.10-0.35 | 0.40-1.20 | ≤0.030 | / | / | |
Mechanical property of DIN 17175 St45.8 carbon pipe
| Standard | grade | Tensile Strength(MPa) | Yield Strength(MPa) | Elongation(%) |
| DIN 17175 | St45.8 | 410-530 | ≥255 | ≥21 |
DIN 17175 St45.8 Seamless pipe
Manufacture:Seamless process
Out Dimensions: 14mm-711mm
Wall Thickness: 2mm-60mm
Length: Fixed(6m,9m,12,24m) or normal length(5-12m)
Ends: Plain End, Beveled End, Treaded
Standard:DIN 17175
Seamless Steel Tubes For Elevated Temperatures
As far as DIN 17175 is concerned, steels that have a good mechanical properties at a higher temperature, up to 6 00 °C, and even under long-term load, are called heat-strength steels.
DIN 17175 St45.8 Seamless Steel Tubes can be used to manufacture steam boilers, pipes, pressure vessels and instruments operating at temperatures up to 600 ° C and at high temperatures.
gnee company has an advanced inspection and testing center that can conduct various physical and chemical tests on steel pipes. It has successively obtained ISO9001, ISO14001, ISO45001 system certification, special equipment manufacturing license, API 5L certificate and API 2B certificate, CE certificate, safety production standardization secondary enterprise and other standard quality system certifications.
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