EN 10216‑2: Grade P265GH (Normalized/Normalized Formed +N) – High‑Temperature Seamless Tubes for Power and Chemical Industries
Seamless tubes of the high-temperature P265GH 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
| Property | Temperature | Value |
|---|---|---|
Density | 20.0 °C | 7.85 g/cm³ |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
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 | 23 % | |
Elongation, transverse | 20.0 °C | 21 % | |
Poisson's ratio | 23.0 °C | 0.29 [-] | Typical for Low Carbon Steel |
Shear modulus | 23.0 °C | 82 GPa | Typical for Low Carbon Steel |
Tensile strength | 20.0 °C | 410 - 570 MPa | |
Tensile strength, transverse | 20.0 °C | 410 - 570 MPa | |
Yield strength | 20.0 °C | 245 - 265 MPa | |
100.0 °C | 226 - 238 MPa | ||
150.0 °C | 211 - 221 MPa | ||
200.0 °C | 192 - 205 MPa | ||
250.0 °C | 171 - 185 MPa | ||
300.0 °C | 154 - 160 MPa | ||
350.0 °C | 141 MPa | ||
400.0 °C | 134 MPa | ||
450.0 °C | 128 MPa | ||
Yield strength Rp0.2 | 20.0 °C | 245 - 265 MPa | |
100.0 °C | 226 MPa | ||
150.0 °C | 213 MPa | ||
200.0 °C | 192 MPa | ||
250.0 °C | 171 MPa | ||
300.0 °C | 154 MPa | ||
350.0 °C | 141 MPa | ||
400.0 °C | 134 MPa | ||
450.0 °C | 128 MPa | ||
Yield strength Rp0.2, transverse | 20.0 °C | 245 - 265 MPa | |
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
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 | 51 - 57.5 W/(m·K) | |
100.0 °C | 50.8 - 55.7 W/(m·K) | ||
200.0 °C | 48.7 - 51.9 W/(m·K) | ||
300.0 °C | 45.8 - 47.6 W/(m·K) | ||
400.0 °C | 42.5 - 43.4 W/(m·K) | ||
500.0 °C | 39.2 - 39.6 W/(m·K) | ||
600.0 °C | 36 W/(m·K) | ||
Thermal diffusivity | 20.0 °C | 14.1 - 15.9 mm²/s | |
100.0 °C | 13.1 - 14.3 mm²/s | ||
200.0 °C | 11.7 - 12.5 mm²/s | ||
300.0 °C | 10.4 - 10.8 mm²/s | ||
400.0 °C | 9 - 9.2 mm²/s | ||
500.0 °C | 7.6 mm²/s | ||
600.0 °C | 6.1 mm²/s | ||
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical resistivity | 20.0 °C | 1.1E-7 - 2.04E-7 Ω·m |
100.0 °C | 2.3E-7 - 2.52E-7 Ω·m | |
200.0 °C | 3.04E-7 - 3.24E-7 Ω·m | |
300.0 °C | 3.94E-7 - 4.1E-7 Ω·m | |
400.0 °C | 5.01E-7 - 5.12E-7 Ω·m | |
500.0 °C | 6.25E-7 - 6.31E-7 Ω·m | |
600.0 °C | 7.7E-7 Ω·m | |
Magnetic
| Property | Value | Comment |
|---|---|---|
Curie temperature | 770 °C | Typical for Low Carbon Steel |
Chemical properties
| Property | Value |
|---|---|
Aluminium | 0.02 % |
Carbon | 0.2 % |
Chromium | 0.3 % |
Copper | 0.3 % |
Manganese | 1.4 % |
Molybdenum | 0.08 % |
Nickel | 0.3 % |
Niobium | 0.01 - 0.02 % |
Phosphorus | 0.03 % |
Silicon | 0.4 % |
Sulfur | 0.01 - 0.02 % |
Titanium | 0.04 % |
Vanadium | 0.02 % |
Metal
- EN 10216-2 Grade 8MoB5-4 (Normalized/Normalized Formed +N): High‑Temperature Seamless Tubes for Boilers, Pipelines & Pressure Vessels
- EN 10216-2 Grade 16Mo3: Normalized or Normalized Formed Tubes for High-Temperature Applications
- EN 10273 P265GH (Normalized / Normalized‑Formed +N) – Premium High‑Temperature Steel for Boiler & Pressure Vessel Engineering
- EN 10216-2 Grade St 45.8: High‑Temperature Normalized Tube Steel (+N) for Seamless Tubes
- EN 10217-2 Grade St 37.8: High‑Temperature Normalized Tube Steel for Industrial Use
- EN 10217-5: Grade P265GH Tubes – Normalized or Normalized Formed (+N) for High‑Temperature Steam Applications
- EN 10216-2 Grade P195GH – Normalized or Normalized Formed (+N) Seamless Tubes
- EN 10217-2: Grade P265GH Normalized or Normalized‑Formed Steel for High‑Temperature Applications
- EN 10216-2 Grade P235GH Seamless Tubes – Normalized or Normalized Formed (+N)
- EN 10216-2 Grade 19Mn5: Normalized or Normalized Formed Steel for High-Temperature Applications (+N)