EN 10216-4 Grade P255QL quenched and tempered (+QT)
EN 10216-4 Grade P255QL quenched and tempered (+QT) introduction
Tubes made from cryogenic unalloyed quality steel P255QL are predominantly used in apparatus, tank, line construction as well as in general machine and equipment engineering.
Weldability is available.
Equivalent material: DIN P255QL, DIN TTSt35V, DIN 1.0452, EN 1.0452
EN 10216-4 Grade P255QL quenched and tempered (+QT) general
| Property |
Temperature |
Value |
Comment |
| Density |
23.0 °C |
Density of 7.8 - 7.9 g/cm³ |
Typical for Low Carbon Steel |
EN 10216-4 Grade P255QL quenched and tempered (+QT) thermal
| Property |
Temperature |
Value |
Comment |
| Coefficient of thermal expansion |
23.0 °C |
Coefficient of thermal expansion of 1.32E-5 - 1.38E-5 1/K |
Typical for Low Carbon Steel |
| Max service temperature |
- |
Max service temperature of 500 °C |
Typical for Carbon Steel |
| Melting point |
- |
Melting point of 1480 - 1526 °C |
Typical for Low Carbon Steel |
| Specific heat capacity |
23.0 °C |
Specific heat capacity of 465 J/(kg·K) |
Typical for Low Carbon Steel |
| Thermal conductivity |
23.0 °C |
Thermal conductivity of 25 - 93 W/(m·K) |
Typical for Low Carbon Steel |
EN 10216-4 Grade P255QL quenched and tempered (+QT) chemical
| Property |
Value |
| Aluminium |
Aluminium of 0.02 % |
| Carbon |
Carbon of 0.17 % |
| Chromium |
Chromium of 0.3 % |
| Copper |
Copper of 0.3 % |
| Manganese |
Manganese of 0.4 - 1.2 % |
| Molybdenum |
Molybdenum of 0.08 % |
| Nickel |
Nickel of 0.3 % |
| Niobium |
Niobium of 0.01 % |
| Phosphorus |
Phosphorus of 0.03 % |
| Silicon |
Silicon of 0.35 % |
| Sulfur |
Sulfur of 0.01 - 0.02 % |
| Titanium |
Titanium of 0.04 % |
| Vanadium |
Vanadium of 0.02 % |
EN 10216-4 Grade P255QL quenched and tempered (+QT) magnetic
| Property |
Value |
Comment |
| Curie temperature |
Curie temperature of 770 °C |
Typical for Low Carbon Steel |
EN 10216-4 Grade P255QL 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 10216-4 Grade P255QL quenched and tempered (+QT) mechanical
| Property |
Temperature |
Value |
Comment |
| Elastic modulus |
23.0 °C |
Elastic modulus of 200 - 215 GPa |
Typical for Low Carbon Steel |
| Elongation |
20.0 °C |
Elongation of 23 % |
- |
| Elongation, transverse |
20.0 °C |
Elongation, transverse of 21 % |
- |
| 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 |
20.0 °C |
Tensile strength of 360 - 490 MPa |
- |
| Tensile strength, transverse |
20.0 °C |
Tensile strength, transverse of 360 - 490 MPa |
- |
| Yield strength Rp0.2 |
20.0 °C |
Yield strength Rp0.2 of 255 MPa |
- |
| - |
100.0 °C |
Yield strength Rp0.2 of 185 MPa |
- |
| - |
200.0 °C |
Yield strength Rp0.2 of 155 MPa |
- |
| - |
250.0 °C |
Yield strength Rp0.2 of 140 MPa |
- |
| - |
300.0 °C |
Yield strength Rp0.2 of 125 MPa |
- |
| Yield strength Rp0.2, transverse |
20.0 °C |
Yield strength Rp0.2, transverse of 255 MPa |
- |
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