EN 10225 Grade S420G1 quenched and tempered (+QT)
EN 10225 Grade S420G1 quenched and tempered (+QT) introduction
The standard is applicable to steels for offshore structures, designed to operate in the offshore sector but not to steels supplied for the fabrication of subsea pipelines, risers, process equipment, process piping, and other utilities. It is primarily applicable to the North Sea Sector, but may also be applicable in other areas provided that due consideration is given to local conditions e.g. temperature.
Equivalent material: EN S420G1+Q, DIN 1.8830, EN 1.8830, DIN BStE 550 TM, DIN S420G1
EN 10225 Grade S420G1 quenched and tempered (+QT) general
| Property |
Value |
Comment |
| Density |
Density of 7.8 g/cm³ |
Typical for Steel |
EN 10225 Grade S420G1 quenched and tempered (+QT) thermal
| Property |
Value |
Comment |
| Coefficient of thermal expansion |
Coefficient of thermal expansion of 11.89 1/K |
Predicted Value |
| Max service temperature |
Max service temperature of 279.7 °C |
Predicted Value, Long |
| Specific heat capacity |
Specific heat capacity of 453.1 J/(kg·K) |
Predicted Value |
| Thermal conductivity |
Thermal conductivity of 36.99 W/(m·K) |
Predicted Value |
EN 10225 Grade S420G1 quenched and tempered (+QT) chemical
| Property |
Value |
Condition |
Related Standards |
Shape |
| Aluminium |
Aluminium of 0.015 - 0.055 % |
quenched and tempered (+QT) |
EN 10225 |
Sheet |
| Antimony |
Antimony of 0.01 % |
quenched and tempered (+QT) |
EN 10225 |
Sheet |
| Arsenic |
Arsenic of 0.03 % |
quenched and tempered (+QT) |
EN 10225 |
Sheet |
| Bismuth |
Bismuth of 0.01 % |
quenched and tempered (+QT) |
EN 10225 |
Sheet |
| Boron |
Boron of 0.001 % |
quenched and tempered (+QT) |
EN 10225 |
Sheet |
| Calcium |
Calcium of 0.005 % |
quenched and tempered (+QT) |
EN 10225 |
Sheet |
| Carbon |
Carbon of 0.14 % |
quenched and tempered (+QT) |
EN 10225 |
Sheet |
| Chromium |
Chromium of 0.25 % |
quenched and tempered (+QT) |
EN 10225 |
Sheet |
| Copper |
Copper of 0.3 % |
quenched and tempered (+QT) |
EN 10225 |
Sheet |
| Lead |
Lead of 0.01 % |
quenched and tempered (+QT) |
EN 10225 |
Sheet |
| Manganese |
Manganese of 1.65 % |
quenched and tempered (+QT) |
EN 10225 |
Sheet |
| Molybdenum |
Molybdenum of 0.25 % |
quenched and tempered (+QT) |
EN 10225 |
Sheet |
| Nickel |
Nickel of 0.7 % |
quenched and tempered (+QT) |
EN 10225 |
Sheet |
| Niobium |
Niobium of 0.04 % |
quenched and tempered (+QT) |
EN 10225 |
Sheet |
| Nitrogen |
Nitrogen of 0.01 % |
quenched and tempered (+QT) |
EN 10225 |
Sheet |
| Phosphorus |
Phosphorus of 0.02 % |
quenched and tempered (+QT) |
EN 10225 |
Sheet |
| Silicon |
Silicon of 0.15 - 0.55 % |
quenched and tempered (+QT) |
EN 10225 |
Sheet |
| Sulfur |
Sulfur of 0.01 % |
quenched and tempered (+QT) |
EN 10225 |
Sheet |
| Tin |
Tin of 0.02 % |
quenched and tempered (+QT) |
EN 10225 |
Sheet |
| Titanium |
Titanium of 0.025 % |
quenched and tempered (+QT) |
EN 10225 |
Sheet |
| Vanadium |
Vanadium of 0.08 % |
quenched and tempered (+QT) |
EN 10225 |
Sheet |
EN 10225 Grade S420G1 quenched and tempered (+QT) electrical
| Property |
Value |
Comment |
| Electrical conductivity |
Electrical conductivity of 7 S/m |
Predicted Value |
| Electrical resistivity |
Electrical resistivity of 36 Ω·m |
Predicted Value |
EN 10225 Grade S420G1 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 17.0 % |
- |
- |
- |
Predicted Value, A80 |
| - |
- |
Elongation of 17.4 % |
- |
- |
- |
Predicted Value, A200 |
| - |
- |
Elongation of 20.7 % |
- |
- |
- |
Predicted Value, A80 Transverse |
| - |
- |
Elongation of 20.8 % |
- |
- |
- |
Predicted Value, Transverse |
| - |
- |
Elongation of 21.0 % |
- |
- |
- |
Predicted Value, A5 |
| - |
- |
Elongation of 24.2 % |
- |
- |
- |
Predicted Value, A50 |
| - |
20 °C |
Elongation of 19 % |
quenched and tempered (+QT) |
EN 10225 |
Sheet |
- |
| Hardness, Brinell |
- |
Hardness, Brinell of 247 [-] |
- |
- |
- |
Predicted Value, Transverse |
| Poisson's ratio |
- |
Poisson's ratio of 0.3 [-] |
- |
- |
- |
Typical for Steel |
| Reduction of area |
- |
Reduction of area of 39.8 % |
- |
- |
- |
Predicted Value |
| - |
- |
Reduction of area of 44.4 % |
- |
- |
- |
Predicted Value, Transverse |
| Shear modulus |
- |
Shear modulus of 79.9 GPa |
- |
- |
- |
Predicted Value |
| Shear strength |
- |
Shear strength of 544.4 MPa |
- |
- |
- |
Predicted Value |
| Tensile strength |
20 °C |
Tensile strength of 480 - 660 MPa |
quenched and tempered (+QT) |
EN 10225 |
Sheet |
- |
| - |
20 °C |
Tensile strength of 480 - 640 MPa |
quenched and tempered (+QT) |
EN 10225 |
Sheet |
- |
| - |
20 °C |
Tensile strength of 500 - 660 MPa |
quenched and tempered (+QT) |
EN 10225 |
Sheet |
- |
| - |
20 °C |
Tensile strength of 500 - 640 MPa |
quenched and tempered (+QT) |
EN 10225 |
Sheet |
- |
| Yield strength |
- |
Yield strength of 260 MPa |
- |
- |
- |
Predicted Value, RP1 |
| - |
- |
Yield strength of 317.7 MPa |
- |
- |
- |
Predicted Value, RP1 Transverse |
| - |
- |
Yield strength of 412.9 MPa |
- |
- |
- |
Predicted Value, RP02 |
| - |
- |
Yield strength of 415.8 MPa |
- |
- |
- |
Predicted Value, Transverse |
| - |
- |
Yield strength of 488 MPa |
- |
- |
- |
Predicted Value, RP02 Transverse |
| - |
- |
Yield strength of 488.9 MPa |
- |
- |
- |
Predicted Value, RP05 |
| - |
- |
Yield strength of 496.7 MPa |
- |
- |
- |
Predicted Value, RP002 |
| - |
20 °C |
Yield strength of 380 MPa |
quenched and tempered (+QT) |
EN 10225 |
Sheet |
- |
| - |
20 °C |
Yield strength of 390 MPa |
quenched and tempered (+QT) |
EN 10225 |
Sheet |
- |
| - |
20 °C |
Yield strength of 400 MPa |
quenched and tempered (+QT) |
EN 10225 |
Sheet |
- |
| - |
20 °C |
Yield strength of 420 MPa |
quenched and tempered (+QT) |
EN 10225 |
Sheet |
- |
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