EN 10028-6 Grade P355QL2 quenched and tempered (+QT)

EN 10028-6 Grade P355QL2 quenched and tempered (+QT) introduction

The low-temperature tough fine grain structural steel is used in the quenched and tempered condition for pressure vessels up to -60 °C.
The steel is suitable for welding processes in current use.

Equivalent material: IS P355QL2, DIN 1.8869, DIN P355QL2, EN 1.8869

EN 10028-6 Grade P355QL2 quenched and tempered (+QT) general

Property Value Comment
Density Density of 7.8 g/cm³ Typical for Steel

EN 10028-6 Grade P355QL2 quenched and tempered (+QT) thermal

Property Value Comment
Coefficient of thermal expansion Coefficient of thermal expansion of 12 1/K Predicted Value
Specific heat capacity Specific heat capacity of 450.1 J/(kg·K) Predicted Value
Thermal conductivity Thermal conductivity of 37.01 W/(m·K) Predicted Value

EN 10028-6 Grade P355QL2 quenched and tempered (+QT) chemical

Property Value Condition Related Standards Shape
Boron Boron of 0.005 % quenched and tempered (+QT) EN 10028-6 Flat
Carbon Carbon of 0.16 % quenched and tempered (+QT) EN 10028-6 Flat
Chromium Chromium of 0.3 % quenched and tempered (+QT) EN 10028-6 Flat
Copper Copper of 0.3 % quenched and tempered (+QT) EN 10028-6 Flat
Manganese Manganese of 1.5 % quenched and tempered (+QT) EN 10028-6 Flat
Molybdenum Molybdenum of 0.25 % quenched and tempered (+QT) EN 10028-6 Flat
Nickel Nickel of 0.5 % quenched and tempered (+QT) EN 10028-6 Flat
Niobium Niobium of 0.05 % quenched and tempered (+QT) EN 10028-6 Flat
Nitrogen Nitrogen of 0.015 % quenched and tempered (+QT) EN 10028-6 Flat
Phosphorus Phosphorus of 0.02 % quenched and tempered (+QT) EN 10028-6 Flat
Silicon Silicon of 0.4 % quenched and tempered (+QT) EN 10028-6 Flat
Sulfur Sulfur of 0.005 % quenched and tempered (+QT) EN 10028-6 Flat
- Sulfur of 0.01 % quenched and tempered (+QT) EN 10028-6 Flat
Titanium Titanium of 0.03 % quenched and tempered (+QT) EN 10028-6 Flat
Vanadium Vanadium of 0.06 % quenched and tempered (+QT) EN 10028-6 Flat
Zirconium Zirconium of 0.05 % quenched and tempered (+QT) EN 10028-6 Flat

EN 10028-6 Grade P355QL2 quenched and tempered (+QT) electrical

Property Value Comment
Electrical conductivity Electrical conductivity of 5 S/m Predicted Value
Electrical resistivity Electrical resistivity of 37 Ω·m Predicted Value

EN 10028-6 Grade P355QL2 quenched and tempered (+QT) mechanical

Property Temperature Value Condition Related Standards Shape Comment
Elastic modulus - Elastic modulus of 190 - 210 GPa - - - Typical for Steel
Elongation - Elongation of 17.3 % - - - Predicted Value, A200
- - Elongation of 17.7 % - - - Predicted Value, A80
- - Elongation of 19.2 % - - - Predicted Value, A80 Transverse
- - Elongation of 20.9 % - - - Predicted Value, A5
- - Elongation of 21.5 % - - - Predicted Value, Transverse
- - Elongation of 24.6 % - - - Predicted Value, A50
- 20 °C Elongation of 22 % quenched and tempered (+QT) EN 10028-6 Flat -
Poisson's ratio - Poisson's ratio of 0.3 [-] - - - Typical for Steel
Reduction of area - Reduction of area of 43.2 % - - - Predicted Value
- - Reduction of area of 43.2 % - - - Predicted Value, Transverse
Shear modulus - Shear modulus of 80.1 GPa - - - Predicted Value
Shear strength - Shear strength of 542.3 MPa - - - Predicted Value
Tensile strength 20 °C Tensile strength of 450 - 630 MPa quenched and tempered (+QT) EN 10028-6 Flat -
- 20 °C Tensile strength of 450 - 590 MPa quenched and tempered (+QT) EN 10028-6 Flat -
- 20 °C Tensile strength of 490 - 630 MPa quenched and tempered (+QT) EN 10028-6 Flat -
- 20 °C Tensile strength of 490 - 590 MPa quenched and tempered (+QT) EN 10028-6 Flat -
Yield strength - Yield strength of 263.3 MPa - - - Predicted Value, RP1
- - Yield strength of 323.2 MPa - - - Predicted Value, RP1 Transverse
- - Yield strength of 370.9 MPa - - - Predicted Value, RP02
- - Yield strength of 375.5 MPa - - - Predicted Value, Transverse
- - Yield strength of 429.9 MPa - - - Predicted Value, RP05
- - Yield strength of 472.7 MPa - - - Predicted Value, RP02 Transverse
- - Yield strength of 500.3 MPa - - - Predicted Value, RP002
- 20 °C Yield strength of 315 MPa quenched and tempered (+QT) EN 10028-6 Flat -
- 20 °C Yield strength of 335 MPa quenched and tempered (+QT) EN 10028-6 Flat -
- 20 °C Yield strength of 355 MPa quenched and tempered (+QT) EN 10028-6 Flat -

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