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Home > Steel Pipe> DIN 17175 St35.8 Seamless Carbon Steel Boiler Tube
DIN 17175 St35.8 Seamless Carbon Steel Boiler Tube image
  • DIN 17175 St35.8 Seamless Carbon Steel Boiler Tube image 1
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DIN 17175 St35.8 Seamless Carbon Steel Boiler Tube

Standard: DIN 17175

Grade: St35.8

Outer diameter:10.2-711mm

Wall thickness:1.6-100mm

Length:5.8m-12m or random length

DIN 17175 St35.8 Seamless Carbon Steel Boiler Tube DIN 17175 St35.8 Seamless Steel Tubes DIN 17175 St35.8 Seamless Carbon Steel Boiler Tube DIN 17175 Seamless Tubes for Boilers DIN 17175 Grade St 35-8 Carbon Steel Seamless Tubes

DIN 17175 St35.8 Seamless Carbon Steel Boiler Tube Supplier and Manufacturer

DIN 17175 St45.8 seamless steel tubes are high-pressure boiler tubes made from carbon and low-alloy steels. The tubes are designed to withstand high temperatures and pressures, making them suitable for use in power plants, chemical plants, and other industrial applications that require high-performance tubes.

These seamless steel tubes are commonly used in power plants, chemical industries, petroleum refineries, and other industries that require high-temperature and high-pressure piping systems. They are also used in the construction of boilers, heat exchangers, and other equipment that require durable and reliable piping systems.

DIN 17175 ST35.8 seamless steel tubes are an important component in various industrial applications where high-pressure and high-temperature piping systems are required to operate safely and efficiently.

Application of DIN 17175 St35.8 Seamless Steel Tubes:

For high, middle, and low pressure boilers and pressure purposes

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Specification Parameters
Basic Information

Heat treatment temperature of DIN 17175 St35.8 Seamless Steel Tubes

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

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 properties of DIN 17175 St35.8

Standard grade Tensile Strength (MPa) Yield Strength (MPa) Elongation (%)
DIN 17175 St35.8 360-480 ≥235 ≥25

Dimensions Tolerance

Project Standard Size range Tolerance
Outer diameter DIN17175 Hot rolled steel pipe OD ≤ 100mm ± 0.75%( Min ± 0.5mm )
OD＞ 100~ 320mm ± 0.9%
Cold drawn steel pipe OD ≤ 120mm ± 0.6%( Min ± 0.25mm )
Wall thickness DIN17175 OD ≤ 130mm WT ≤ 2Sn +15%~-10%
WT ＞ 2Sn~4Sn +12.5%~-10%
WT ＞ 4Sn ± 9%
130 ＜ OD ≤ 320mm WT ≤ 0.05OD +17.5%~-12.5%
0.05OD ＜ WT ≤ 0.11OD ± 12.5%
WT ＞ 0.11OD ± 10%
Service Support
DIN 17175 St35.8 Seamless Carbon Steel Boiler Tube

Testing

  • Tensile test
  • Notch impact/bending test
  • Ring test
  • Non-destructive test
  • Visual inspection of tube surface
  • Gauging
  • Leakage test
  • Grade identification test
  • Hot tensile test
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