EN 10217-3 Grade P355NH

EN 10217-3 Grade P355NH

EN 10217-3 Grade P355NH introduction

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.

Equivalent material: ASTM A672 Grade C70, ASTM A672 Grade N75, ASTM Grade C70, ASTM Grade N75, ASTM C70, ASTM N75, DIN WStE355, DIN 1.0565, DIN WStE 355, DIN P355NH, AFNOR P355NH, AFNOR A510AP, BS 225-490 B, BS 500 Nb, BS P355NH, BS 225-490 A, BS 225/490, UNI A 510 AP, EN 1.0565, ISO P35, ISO PH35, ISO P355NH, ASTM Grade 70, ASTM Grade A, UNS K01600, UNS K02003, UNS K02007, UNS K02010, UNS K02700, UNS K02701, UNS K02803, UNS K11803, UNS K12001, UNS K12037, UNS K12609

EN 10217-3 Grade P355NH general

Property Temperature Value
Density 20.0 °C Density of 7.83 - 7.84 g/cm³

EN 10217-3 Grade P355NH thermal

Property Temperature Value Comment
Coefficient of thermal expansion -100.0 °C Coefficient of thermal expansion of 1.08E-5 1/K -
- 20.0 °C Coefficient of thermal expansion of 1.19E-5 1/K -
- 100.0 °C Coefficient of thermal expansion of 1.25E-5 1/K -
- 200.0 °C Coefficient of thermal expansion of 1.3E-5 1/K -
- 300.0 °C Coefficient of thermal expansion of 1.36E-5 1/K -
- 400.0 °C Coefficient of thermal expansion of 1.41E-5 1/K -
- 500.0 °C Coefficient of thermal expansion of 1.45E-5 1/K -
- 600.0 °C Coefficient of thermal expansion of 1.49E-5 1/K -
Max service temperature - Max service temperature of 500 °C Typical for Carbon Steel
Max service temperature, long - Max service temperature, long of 0 - 400 °C -
Melting point - Melting point of 1480 - 1526 °C Typical for Low Carbon Steel
Specific heat capacity -100.0 °C Specific heat capacity of 423 J/(kg·K) -
- 20.0 °C Specific heat capacity of 430 - 461 J/(kg·K) -
- 100.0 °C Specific heat capacity of 479 J/(kg·K) -
- 200.0 °C Specific heat capacity of 499 J/(kg·K) -
- 300.0 °C Specific heat capacity of 517 J/(kg·K) -
- 400.0 °C Specific heat capacity of 536 J/(kg·K) -
- 500.0 °C Specific heat capacity of 558 J/(kg·K) -
- 600.0 °C Specific heat capacity of 587 J/(kg·K) -
Thermal conductivity -100.0 °C Thermal conductivity of 37.6 W/(m·K) -
- 20.0 °C Thermal conductivity of 42 - 42.2 W/(m·K) -
- 100.0 °C Thermal conductivity of 43.2 W/(m·K) -
- 200.0 °C Thermal conductivity of 42.9 W/(m·K) -
- 300.0 °C Thermal conductivity of 41.2 W/(m·K) -
- 400.0 °C Thermal conductivity of 39.1 W/(m·K) -
- 500.0 °C Thermal conductivity of 36.6 W/(m·K) -
- 600.0 °C Thermal conductivity of 34.1 W/(m·K) -
Thermal diffusivity -100.0 °C Thermal diffusivity of 12.9 mm²/s -
- 20.0 °C Thermal diffusivity of 11.7 mm²/s -
- 100.0 °C Thermal diffusivity of 11.2 mm²/s -
- 200.0 °C Thermal diffusivity of 10.3 mm²/s -
- 300.0 °C Thermal diffusivity of 9.4 mm²/s -
- 400.0 °C Thermal diffusivity of 8.3 mm²/s -
- 500.0 °C Thermal diffusivity of 7.1 mm²/s -
- 600.0 °C Thermal diffusivity of 5.7 mm²/s -

EN 10217-3 Grade P355NH chemical

Property Value
Aluminium Aluminium of 0.02 %
Carbon Carbon of 0.2 %
Chromium Chromium of 0.3 %
Copper Copper of 0.3 %
Manganese Manganese of 0.9 - 1.7 %
Molybdenum Molybdenum of 0.08 %
Nickel Nickel of 0.5 %
Niobium Niobium of 0.05 %
Nitrogen Nitrogen of 0.02 %
Phosphorus Phosphorus of 0.03 %
Silicon Silicon of 0.5 %
Sulfur Sulfur of 0.02 %
Titanium Titanium of 0.03 %
Vanadium Vanadium of 0.1 %

EN 10217-3 Grade P355NH magnetic

Property Value Comment
Curie temperature Curie temperature of 770 °C Typical for Low Carbon Steel

EN 10217-3 Grade P355NH electrical

Property Temperature Value
Electrical resistivity -100.0 °C Electrical resistivity of 1.82E-7 Ω·m
- 20.0 °C Electrical resistivity of 2.47E-7 - 2.5E-7 Ω·m
- 100.0 °C Electrical resistivity of 2.96E-7 Ω·m
- 200.0 °C Electrical resistivity of 3.68E-7 Ω·m
- 300.0 °C Electrical resistivity of 4.55E-7 Ω·m
- 400.0 °C Electrical resistivity of 5.56E-7 Ω·m
- 500.0 °C Electrical resistivity of 6.75E-7 Ω·m
- 600.0 °C Electrical resistivity of 8.13E-7 Ω·m

EN 10217-3 Grade P355NH mechanical

Property Temperature Value Comment
Elastic modulus -100.0 °C Elastic modulus of 217 GPa -
- 20.0 °C Elastic modulus of 212 GPa -
- 100.0 °C Elastic modulus of 207 GPa -
- 200.0 °C Elastic modulus of 199 GPa -
- 300.0 °C Elastic modulus of 192 GPa -
- 400.0 °C Elastic modulus of 184 GPa -
- 500.0 °C Elastic modulus of 175 GPa -
- 600.0 °C Elastic modulus of 164 GPa -
Poisson's ratio 23.0 °C Poisson's ratio of 0.29 [-] Typical for Low Carbon Steel
Shear modulus 23.0 °C Shear modulus of 82 GPa Typical for Low Carbon Steel
Tensile strength 100.0 °C Tensile strength of 420 - 440 MPa -
- 150.0 °C Tensile strength of 410 - 430 MPa -
- 200.0 °C Tensile strength of 390 - 410 MPa -
- 250.0 °C Tensile strength of 390 - 410 MPa -
- 300.0 °C Tensile strength of 390 - 410 MPa -
- 350.0 °C Tensile strength of 380 - 400 MPa -
- 400.0 °C Tensile strength of 370 - 390 MPa -
Yield strength Rp0.2 100.0 °C Yield strength Rp0.2 of 294 - 304 MPa -
- 150.0 °C Yield strength Rp0.2 of 275 - 284 MPa -
- 200.0 °C Yield strength Rp0.2 of 255 MPa -
- 250.0 °C Yield strength Rp0.2 of 235 MPa -
- 300.0 °C Yield strength Rp0.2 of 216 MPa -
- 350.0 °C Yield strength Rp0.2 of 196 MPa -
- 400.0 °C Yield strength Rp0.2 of 167 MPa -

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