EN 10268 Grade H240LA Skin Pass – High‑Tensile, Cold‑Formable Steel
H240LA, mat. No. 1.0480, is a micro alloyed steel with a min. yield strength of 240 N/mm² and a min. ultimate strain of 27%. The material is well cold formable. The mandrel diameter at bending test min. 180° amounts to 0e for transverse test specimen (e= nominal thickness). Thin sheets made of micro alloyed high-tensile steel allow for a steel thickness reduction and therewith a building weight reduction for special application purposes. Application: car manufacturing, construction trade, household appliances industry, plant construction etc. The material is suitable for metallization by hot-dip coating, application of electrolytic coatings and/or of organic or other coating. Welding: The material is suitable for: - MAG (metal-active-gas) - plasma welding - laser welding - compression weld welding - resistance welding (spot, roll weld, buckle welding) - arc hand welding
Properties
General
| Property | Temperature | Value | Comment |
|---|---|---|---|
Density | 23.0 °C | 7.8 - 7.9 g/cm³ | Typical for Low Carbon Steel |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Elastic modulus | 23.0 °C | 200 - 215 GPa | Typical for Low Carbon Steel |
Elongation A80 | 20.0 °C | 27 % | |
Poisson's ratio | 23.0 °C | 0.29 [-] | Typical for Low Carbon Steel |
Shear modulus | 23.0 °C | 82 GPa | Typical for Low Carbon Steel |
Tensile strength | 20.0 °C | 340 MPa | |
Yield strength | 20.0 °C | 240 - 310 MPa |
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | 23.0 °C | 1.32E-5 - 1.38E-5 1/K | Typical for Low Carbon Steel |
Max service temperature | 500 °C | Typical for Carbon Steel | |
Melting point | 1480 - 1526 °C | Typical for Low Carbon Steel | |
Specific heat capacity | 23.0 °C | 465 J/(kg·K) | Typical for Low Carbon Steel |
Thermal conductivity | 23.0 °C | 25 - 93 W/(m·K) | Typical for Low Carbon Steel |
Electrical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Electrical resistivity | 23.0 °C | 1.43E-7 - 1.74E-7 Ω·m | Typical for Carbon Steel |
Magnetic
| Property | Value | Comment |
|---|---|---|
Curie temperature | 770 °C | Typical for Low Carbon Steel |
Chemical properties
| Property | Value |
|---|---|
Aluminium | 0.015 % |
Carbon | 0.1 % |
Manganese | 0.6 % |
Niobium | 0.09 % |
Phosphorus | 0.03 % |
Silicon | 0.5 % |
Sulfur | 0.025 % |
Titanium | 0.15 % |
Metal
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- EN 10209 DC03ED: Cold-Rolled, Skin-Passed Low-Carbon Steel for Enamel Applications
- EN 10139 Grade DC06 Cold Rolled Low-Carbon Steel – Skin Passed
- EN 10268 Grade H280LA: Premium Micro-Alloyed Steel for Automotive & Construction
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