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EN 10216-2 Grade P235GH Seamless Tubes – Normalized or Normalized Formed (+N)

Seamless tubes of the high-temperature P235GH are used in steam boiler and pipeline construction, pressure vessel and apparatus engineering, especially in chemical industry and power station construction at temperatures from approx. 200 °C to maximum 400 °C and simultaneously high pressures. The total load and the special scaling circumstances can decrease or increase the temperature limit. Weldability is available.

Properties

General

PropertyTemperatureValue

Density

20.0 °C

7.85 g/cm³

Mechanical

PropertyTemperatureValueComment

Elastic modulus

-100.0 °C

217 GPa

20.0 °C

212 GPa

100.0 °C

207 GPa

200.0 °C

199 GPa

300.0 °C

192 GPa

400.0 °C

184 GPa

500.0 °C

175 GPa

600.0 °C

164 GPa

Elongation

20.0 °C

25 %

Elongation, transverse

20.0 °C

23 %

Poisson's ratio

20.0 °C

0.28 [-]

Shear modulus

23.0 °C

82 GPa

Typical for Low Carbon Steel

Tensile strength

20.0 °C

360 - 500 MPa

Tensile strength, transverse

20.0 °C

360 - 500 MPa

Yield strength

20.0 °C

215 - 235 MPa

100.0 °C

198 - 212 MPa

150.0 °C

187 - 198 MPa

200.0 °C

170 - 185 MPa

250.0 °C

150 - 165 MPa

300.0 °C

132 - 140 MPa

350.0 °C

120 MPa

400.0 °C

112 MPa

450.0 °C

108 MPa

Yield strength Rp0.2

20.0 °C

215 - 235 MPa

100.0 °C

198 MPa

150.0 °C

187 MPa

200.0 °C

170 MPa

250.0 °C

150 MPa

300.0 °C

132 MPa

350.0 °C

120 MPa

400.0 °C

112 MPa

450.0 °C

108 MPa

Yield strength Rp0.2, transverse

20.0 °C

215 - 235 MPa

Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

-100.0 °C

1.08E-5 1/K

20.0 °C

1.19E-5 1/K

100.0 °C

1.25E-5 1/K

200.0 °C

1.3E-5 1/K

300.0 °C

1.36E-5 1/K

400.0 °C

1.41E-5 1/K

500.0 °C

1.45E-5 1/K

600.0 °C

1.49E-5 1/K

Max service temperature

500 °C

Typical for Carbon Steel

Max service temperature, long

200 - 400 °C

Melting point

1480 - 1526 °C

Typical for Low Carbon Steel

Specific heat capacity

-100.0 °C

423 J/(kg·K)

20.0 °C

461 J/(kg·K)

100.0 °C

479 J/(kg·K)

200.0 °C

499 J/(kg·K)

300.0 °C

517 J/(kg·K)

400.0 °C

536 J/(kg·K)

500.0 °C

558 J/(kg·K)

600.0 °C

587 J/(kg·K)

Thermal conductivity

20.0 °C

57.5 W/(m·K)

100.0 °C

55.7 W/(m·K)

200.0 °C

51.9 W/(m·K)

300.0 °C

47.6 W/(m·K)

400.0 °C

43.4 W/(m·K)

500.0 °C

39.6 W/(m·K)

600.0 °C

36 W/(m·K)

Thermal diffusivity

20.0 °C

15.9 mm²/s

100.0 °C

14.3 mm²/s

200.0 °C

12.5 mm²/s

300.0 °C

10.8 mm²/s

400.0 °C

9.2 mm²/s

500.0 °C

7.6 mm²/s

600.0 °C

6.1 mm²/s

Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

1.1E-7 Ω·m

100.0 °C

2.3E-7 Ω·m

200.0 °C

3.04E-7 Ω·m

300.0 °C

3.94E-7 Ω·m

400.0 °C

5.01E-7 Ω·m

500.0 °C

6.25E-7 Ω·m

600.0 °C

7.7E-7 Ω·m

Magnetic

PropertyValueComment

Curie temperature

770 °C

Typical for Low Carbon Steel

Chemical properties

PropertyValue

Aluminium

0.02 %

Carbon

0.16 %

Chromium

0.3 %

Copper

0.3 %

Manganese

1.2 %

Molybdenum

0.08 %

Nickel

0.3 %

Niobium

0.01 - 0.02 %

Phosphorus

0.03 %

Silicon

0.35 %

Sulfur

0.01 - 0.02 %

Titanium

0.04 %

Vanadium

0.02 %


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    1. EN 10216-2 Grade 8MoB5-4 (Normalized/Normalized Formed +N): High‑Temperature Seamless Tubes for Boilers, Pipelines & Pressure Vessels
    2. EN 10216-2 Grade 16Mo3: Normalized or Normalized Formed Tubes for High-Temperature Applications
    3. EN 10273 Grade P235GH – Normalized/Normalized Formed (+N) High‑Temperature Steel
    4. EN 10216-2 Grade St 45.8: High‑Temperature Normalized Tube Steel (+N) for Seamless Tubes
    5. EN 10217-2 Grade St 37.8: High‑Temperature Normalized Tube Steel for Industrial Use
    6. EN 10217-5 Grade P235GH Normalized or Normalized Formed (+N) Tubes for High-Temperature, High-Pressure Applications
    7. EN 10216-2 Grade P195GH – Normalized or Normalized Formed (+N) Seamless Tubes
    8. EN 10217-2 Grade P235GH: Normalized or Normalized Formed (N) Steel Tubes for High-Temperature Applications
    9. EN 10216‑2: Grade P265GH (Normalized/Normalized Formed +N) – High‑Temperature Seamless Tubes for Power and Chemical Industries
    10. EN 10216-2 Grade 19Mn5: Normalized or Normalized Formed Steel for High-Temperature Applications (+N)