EN 10217-3: P355NH – Premium Creep-Resistant Fine-Grain Structural Steel
The steel P355NH is a creep-resistant weldable fine-grain structural steel (alloy quality steel). Tubes made of this steel are used in the pressure vessel construction, apparatus construction, pipeline construction as well as in the general mechanical engineering and device construction. Maximum operation temperature: approximately 400 degrees C.
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 20.0 °C | 7.83 - 7.84 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 | ||
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 | 100.0 °C | 420 - 440 MPa | |
150.0 °C | 410 - 430 MPa | ||
200.0 °C | 390 - 410 MPa | ||
250.0 °C | 390 - 410 MPa | ||
300.0 °C | 390 - 410 MPa | ||
350.0 °C | 380 - 400 MPa | ||
400.0 °C | 370 - 390 MPa | ||
Yield strength Rp0.2 | 100.0 °C | 294 - 304 MPa | |
150.0 °C | 275 - 284 MPa | ||
200.0 °C | 255 MPa | ||
250.0 °C | 235 MPa | ||
300.0 °C | 216 MPa | ||
350.0 °C | 196 MPa | ||
400.0 °C | 167 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 | 0 - 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 | 430 - 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 | -100.0 °C | 37.6 W/(m·K) | |
20.0 °C | 42 - 42.2 W/(m·K) | ||
100.0 °C | 43.2 W/(m·K) | ||
200.0 °C | 42.9 W/(m·K) | ||
300.0 °C | 41.2 W/(m·K) | ||
400.0 °C | 39.1 W/(m·K) | ||
500.0 °C | 36.6 W/(m·K) | ||
600.0 °C | 34.1 W/(m·K) | ||
Thermal diffusivity | -100.0 °C | 12.9 mm²/s | |
20.0 °C | 11.7 mm²/s | ||
100.0 °C | 11.2 mm²/s | ||
200.0 °C | 10.3 mm²/s | ||
300.0 °C | 9.4 mm²/s | ||
400.0 °C | 8.3 mm²/s | ||
500.0 °C | 7.1 mm²/s | ||
600.0 °C | 5.7 mm²/s | ||
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical resistivity | -100.0 °C | 1.82E-7 Ω·m |
20.0 °C | 2.47E-7 - 2.5E-7 Ω·m | |
100.0 °C | 2.96E-7 Ω·m | |
200.0 °C | 3.68E-7 Ω·m | |
300.0 °C | 4.55E-7 Ω·m | |
400.0 °C | 5.56E-7 Ω·m | |
500.0 °C | 6.75E-7 Ω·m | |
600.0 °C | 8.13E-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 | 0.9 - 1.7 % |
Molybdenum | 0.08 % |
Nickel | 0.5 % |
Niobium | 0.05 % |
Nitrogen | 0.02 % |
Phosphorus | 0.03 % |
Silicon | 0.5 % |
Sulfur | 0.02 % |
Titanium | 0.03 % |
Vanadium | 0.1 % |
Metal
- EN 10217-3 Grade P460NH – High-Performance Creep-Resistant Steel for High-Temperature Applications
- EN 10217-3 P460NL1 Normalized Steel – High‑Strength, Low‑Temperature Weldable Grade
- EN 10217-3 Grade P460NL2 – High‑Toughness Normalized Steel for Sub‑Zero Applications
- EN 10217-3 Grade P460NH: High-Temperature Creep-Resistant Weldable Steel for Pressure Vessels & Pipelines
- EN 10217-3 Grade P355N: Normalized & Normalized Formed Steel for Pressure Vessels & Pipelines
- EN 10273 Grade P355NH – Normalized & Normalized-Formed (N) High‑Temperature Steel for Pressure Vessels
- EN 10222‑4 Grade P355NH Steel – Normalized/Normalized‑Formed (+N) for High‑Strength Applications
- EN 10217-3: P460N Fine-Grain Structural Steel – Normalized or Normalized Formed (+N)
- EN 10217-3 Grade P355NL2 – Normalized or Normalized Formed (+N) Steel for Low-Temperature Applications
- EN 10217-3 Grade P355NH: Normalized or Normalized Formed (+N) Fine-Grain Creep-Resistant Steel