EN 10025-6 Grade S550Q quenched and tempered (+QT)
EN 10025-6 Grade S550Q quenched and tempered (+QT) introduction
S550Q is a tempered and weldable fine grained steel.
yield point: >550 N/mm²
application: welded steel constructions of various types, e.g. bridges and load-carrying constructions as well as transport vehicles, lifting and earthmoving machines.
application limits: at -20°C is warranted a notch impact energy of 30 J (longitudinal test specimen)
cold formability: for nominal size
Equivalent material: IS S550Q, DIN StE550V, DIN 1.8904, EN 1.8904
EN 10025-6 Grade S550Q quenched and tempered (+QT) general
| Property |
Value |
Comment |
| Density |
Density of 7.8 g/cm³ |
Typical for Steel |
EN 10025-6 Grade S550Q quenched and tempered (+QT) thermal
| Property |
Value |
Comment |
| Coefficient of thermal expansion |
Coefficient of thermal expansion of 11.87 1/K |
Predicted Value |
| Specific heat capacity |
Specific heat capacity of 441.8 J/(kg·K) |
Predicted Value |
| Thermal conductivity |
Thermal conductivity of 35.79 W/(m·K) |
Predicted Value |
EN 10025-6 Grade S550Q quenched and tempered (+QT) chemical
| Property |
Value |
Condition |
Related Standards |
Shape |
| Boron |
Boron of 0.005 % |
quenched and tempered (+QT) |
EN 10137-2, EN 10025-6 |
Sheet, Flat |
| Carbon |
Carbon of 0.2 % |
quenched and tempered (+QT) |
EN 10137-2, EN 10025-6 |
Sheet, Flat |
| Chromium |
Chromium of 1.5 % |
quenched and tempered (+QT) |
EN 10137-2, EN 10025-6 |
Sheet, Flat |
| Copper |
Copper of 0.5 % |
quenched and tempered (+QT) |
EN 10137-2, EN 10025-6 |
Sheet, Flat |
| Manganese |
Manganese of 1.7 % |
quenched and tempered (+QT) |
EN 10137-2, EN 10025-6 |
Sheet, Flat |
| Molybdenum |
Molybdenum of 0.7 % |
quenched and tempered (+QT) |
EN 10137-2, EN 10025-6 |
Sheet, Flat |
| Nickel |
Nickel of 2 % |
quenched and tempered (+QT) |
EN 10137-2, EN 10025-6 |
Sheet, Flat |
| Niobium |
Niobium of 0.06 % |
quenched and tempered (+QT) |
EN 10137-2, EN 10025-6 |
Sheet, Flat |
| Nitrogen |
Nitrogen of 0.015 % |
quenched and tempered (+QT) |
EN 10137-2, EN 10025-6 |
Sheet, Flat |
| Phosphorus |
Phosphorus of 0.025 % |
quenched and tempered (+QT) |
EN 10137-2, EN 10025-6 |
Sheet, Flat |
| Silicon |
Silicon of 0.8 % |
quenched and tempered (+QT) |
EN 10137-2, EN 10025-6 |
Sheet, Flat |
| Sulfur |
Sulfur of 0.015 % |
quenched and tempered (+QT) |
EN 10137-2, EN 10025-6 |
Sheet, Flat |
| Titanium |
Titanium of 0.05 % |
quenched and tempered (+QT) |
EN 10137-2, EN 10025-6 |
Sheet, Flat |
| Vanadium |
Vanadium of 0.12 % |
quenched and tempered (+QT) |
EN 10137-2, EN 10025-6 |
Sheet, Flat |
| Zirconium |
Zirconium of 0.15 % |
quenched and tempered (+QT) |
EN 10137-2, EN 10025-6 |
Sheet, Flat |
EN 10025-6 Grade S550Q quenched and tempered (+QT) electrical
| Property |
Value |
Comment |
| Electrical conductivity |
Electrical conductivity of 5 S/m |
Predicted Value |
| Electrical resistivity |
Electrical resistivity of 35 Ω·m |
Predicted Value |
EN 10025-6 Grade S550Q 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 13.0 % |
- |
- |
- |
Predicted Value, A80 |
| - |
- |
Elongation of 13.0 % |
- |
- |
- |
Predicted Value, A200 |
| - |
- |
Elongation of 16.7 % |
- |
- |
- |
Predicted Value, Transverse |
| - |
- |
Elongation of 18.5 % |
- |
- |
- |
Predicted Value, A80 Transverse |
| - |
- |
Elongation of 18.8 % |
- |
- |
- |
Predicted Value, A5 |
| - |
- |
Elongation of 19.9 % |
- |
- |
- |
Predicted Value, A50 |
| - |
20 °C |
Elongation of 16 % |
quenched and tempered (+QT) |
EN 10137-2, EN 10025-6 |
Sheet, Flat |
- |
| Poisson's ratio |
- |
Poisson's ratio of 0.3 [-] |
- |
- |
- |
Typical for Steel |
| Reduction of area |
- |
Reduction of area of 40.0 % |
- |
- |
- |
Predicted Value |
| - |
- |
Reduction of area of 44.7 % |
- |
- |
- |
Predicted Value, Transverse |
| Shear modulus |
- |
Shear modulus of 79.8 GPa |
- |
- |
- |
Predicted Value |
| Shear strength |
- |
Shear strength of 563.9 MPa |
- |
- |
- |
Predicted Value |
| Tensile strength |
20 °C |
Tensile strength of 590 - 820 MPa |
quenched and tempered (+QT) |
EN 10137-2, EN 10025-6 |
Sheet, Flat |
- |
| - |
20 °C |
Tensile strength of 590 - 770 MPa |
quenched and tempered (+QT) |
EN 10137-2, EN 10025-6 |
Sheet, Flat |
- |
| - |
20 °C |
Tensile strength of 640 - 820 MPa |
quenched and tempered (+QT) |
EN 10137-2, EN 10025-6 |
Sheet, Flat |
- |
| - |
20 °C |
Tensile strength of 640 - 770 MPa |
quenched and tempered (+QT) |
EN 10137-2, EN 10025-6 |
Sheet, Flat |
- |
| Yield strength |
- |
Yield strength of 302.9 MPa |
- |
- |
- |
Predicted Value, RP1 |
| - |
- |
Yield strength of 329.7 MPa |
- |
- |
- |
Predicted Value, RP1 Transverse |
| - |
- |
Yield strength of 486 MPa |
- |
- |
- |
Predicted Value, Transverse |
| - |
- |
Yield strength of 494.3 MPa |
- |
- |
- |
Predicted Value, RP02 Transverse |
| - |
- |
Yield strength of 541.7 MPa |
- |
- |
- |
Predicted Value, RP05 |
| - |
- |
Yield strength of 556 MPa |
- |
- |
- |
Predicted Value, RP02 |
| - |
- |
Yield strength of 623.2 MPa |
- |
- |
- |
Predicted Value, RP002 |
| - |
20 °C |
Yield strength of 490 MPa |
quenched and tempered (+QT) |
EN 10137-2, EN 10025-6 |
Sheet, Flat |
- |
| - |
20 °C |
Yield strength of 530 MPa |
quenched and tempered (+QT) |
EN 10137-2, EN 10025-6 |
Sheet, Flat |
- |
| - |
20 °C |
Yield strength of 550 MPa |
quenched and tempered (+QT) |
EN 10137-2, EN 10025-6 |
Sheet, Flat |
- |
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