EN 10225 Grade S355G15 quenched and tempered (+QT)
EN 10225 Grade S355G15 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 S355G15+Q, DIN 1.1190, DIN S355G15, AFNOR S355G15, AFNOR XC42, BS S355G15, EN 1.1190
EN 10225 Grade S355G15 quenched and tempered (+QT) general
| Property |
Temperature |
Value |
Comment |
| Density |
23.0 °C |
Density of 7.8 - 7.9 g/cm³ |
Typical for Medium Carbon Steel |
EN 10225 Grade S355G15 quenched and tempered (+QT) thermal
| Property |
Temperature |
Value |
Comment |
| Coefficient of thermal expansion |
23.0 °C |
Coefficient of thermal expansion of 1.32E-5 1/K |
Typical for Medium Carbon Steel |
| Max service temperature |
- |
Max service temperature of 500 °C |
Typical for Carbon Steel |
| Melting point |
- |
Melting point of 1380 - 1514 °C |
Typical for Medium Carbon Steel |
| Specific heat capacity |
23.0 °C |
Specific heat capacity of 470 - 520 J/(kg·K) |
Typical for Medium Carbon Steel |
| Thermal conductivity |
23.0 °C |
Thermal conductivity of 21 - 52 W/(m·K) |
Typical for Medium Carbon Steel |
EN 10225 Grade S355G15 quenched and tempered (+QT) chemical
| Property |
Value |
| Aluminium |
Aluminium of 0.06 % |
| Antimony |
Antimony of 0.01 % |
| Arsenic |
Arsenic of 0.03 % |
| Bismuth |
Bismuth of 0.01 % |
| Boron |
Boron of 1E-3 % |
| Calcium |
Calcium of 5E-3 % |
| Carbon |
Carbon of 0.18 % |
| Chromium |
Chromium of 0.25 % |
| Copper |
Copper of 0.35 % |
| Lead |
Lead of 0.01 % |
| Manganese |
Manganese of 1.6 % |
| Molybdenum |
Molybdenum of 0.08 % |
| Nickel |
Nickel of 0.3 % |
| Niobium |
Niobium of 0.05 % |
| Nitrogen |
Nitrogen of 0.01 % |
| Phosphorus |
Phosphorus of 0.03 % |
| Silicon |
Silicon of 0.15 - 0.55 % |
| Sulfur |
Sulfur of 7E-3 % |
| Tin |
Tin of 0.02 % |
| Titanium |
Titanium of 0.02 % |
| Vanadium |
Vanadium of 0.1 % |
EN 10225 Grade S355G15 quenched and tempered (+QT) electrical
| Property |
Temperature |
Value |
Comment |
| Electrical resistivity |
23.0 °C |
Electrical resistivity of 1.43E-7 - 1.74E-7 Ω·m |
Typical for Carbon Steel |
EN 10225 Grade S355G15 quenched and tempered (+QT) mechanical
| Property |
Temperature |
Value |
Comment |
| Elastic modulus |
23.0 °C |
Elastic modulus of 200 - 215 GPa |
Typical for Medium Carbon Steel |
| Poisson's ratio |
23.0 °C |
Poisson's ratio of 0.29 [-] |
Typical for Medium Carbon Steel |
| Shear modulus |
23.0 °C |
Shear modulus of 75 - 80 GPa |
Typical for Carbon Steel |
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