EStE500 Hot Rolled Steel Coil per DIN 17102
EStE500 Hot Rolled Steel Coil per DIN 17102 - High-Strength Fine-Grain Structural Steel
Complete material data for EStE500 hot rolled steel according to DIN 17102, including chemical composition, mechanical properties, physical properties, and international equivalents. Ideal for welded structural applications requiring high yield strength and good toughness.
Hot rolling, controlled rolling, normalizing, cold forming, welding, cutting
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EStE500 Hot Rolled Steel Coil per DIN 17102 Introduction
EStE500 is a weldable fine-grain structural steel specified in the German standard DIN 17102 for hot-rolled flat products. Characterized by a minimum yield strength of 500 MPa and good low-temperature toughness, it is microalloyed with elements such as niobium and titanium to achieve grain refinement and precipitation hardening. Typical delivery condition is hot-rolled and controlled-rolled (or normalized if required).
The steel offers excellent formability and weldability, making it suitable for heavy-duty structural components in the automotive, crane, and construction industries. It is a predecessor to the European standard EN 10149-2 S500MC.
EStE500 Hot Rolled Steel Coil per DIN 17102 Chemical Composition
Chemical composition according to DIN 17102 for grade EStE500. Values are maximum unless otherwise stated. The steel is microalloyed with Nb, Ti, and/or V to achieve fine grain structure and high strength. Carbon equivalent (CEV) typically ≤ 0.50% to ensure good weldability.
| Element | Value (%) | Remarks |
|---|---|---|
| C | ≤0.12 | |
| Si | ≤0.50 | |
| Mn | ≤1.70 | |
| P | ≤0.025 | |
| S | ≤0.015 | |
| Al (total) | ≥0.015 | Minimum for fine grain practice |
| Nb | ≤0.09 | Microalloying element |
| Ti | ≤0.15 | Microalloying element |
| V | ≤0.12 | Microalloying element |
| CEV | ≤0.50 | Typical; based on ladle analysis |
EStE500 Hot Rolled Steel Coil per DIN 17102 Physical and Thermal Properties
Typical physical properties for low-carbon microalloyed steel similar to EStE500. Data are provided for design guidance; actual values may vary slightly with processing.
| Property | Value | Unit | Condition |
|---|---|---|---|
| Density (ρ) | 7.85 | g/cm³ | 20 °C |
| Modulus of elasticity (E) | 210 | GPa | 20 °C |
| Shear modulus (G) | 80 | GPa | 20 °C |
| Poisson's ratio (ν) | 0.3 | – | 20 °C |
| Thermal expansion coefficient (α) | 11.7 | 10⁻⁶/K | 20 – 100 °C |
| Thermal expansion coefficient (α) | 12.6 | 10⁻⁶/K | 20 – 200 °C |
| Thermal conductivity (λ) | 53 | W/(m·K) | 20 °C |
| Thermal conductivity (λ) | 51 | W/(m·K) | 200 °C |
| Specific heat capacity (Cp) | 460 – 500 | J/(kg·K) | 20 °C |
| Electrical resistivity (ρe) | 0.18 | μΩ·m | 20 °C |
EStE500 Hot Rolled Steel Coil per DIN 17102 Mechanical Properties
Mechanical properties for hot-rolled EStE500 steel of thickness ≤ 16 mm at room temperature according to DIN 17102. Values for thicker products may vary. Impact energy tested on Charpy-V specimens at -20 °C.
| Property | Value | Unit | Condition / Test Method |
|---|---|---|---|
| Upper yield strength (ReH) | ≥500 | MPa | t ≤ 16 mm |
| Tensile strength (Rm) | 550 – 700 | MPa | t ≤ 16 mm |
| Elongation (A5) | ≥14 | % | Gauge length 5.65√So, longitudinal |
| Bend test (mandrel diameter) | 2t (180°) | - | t = specimen thickness |
| Impact energy (KV2) | ≥27 (or ≥40 upon agreement) | J | -20 °C, longitudinal, Charpy-V |
EStE500 Hot Rolled Steel Coil per DIN 17102 Complete Equivalents and Replacements
| Country / Region | Standard | Grade | Remarks |
|---|---|---|---|
| Europe | EN 10149-2 | S500MC | Thermomechanically rolled, direct successor |
| International | ISO 6930-2 | FeE500 | Similar yield strength classification |
| China | GB/T 1591-2018 | Q500C / Q500D | May require impact toughness agreement |
| Germany (superseded) | DIN 17102 | EStE500 | Original standard, still used |
EStE500 Hot Rolled Steel Coil per DIN 17102 Application Introduction
EStE500 steel is primarily used in welded structures where high strength and good toughness at low temperatures are required. It can be cold-formed, cut, and welded using standard procedures. Pre-heating may be necessary for thicker sections. Typical applications include:
Product Applications: Hot-rolled coils and sheets for further processing, Cold-formed profiles and welded tubes, Cut-to-length plates
Processed into products: Truck chassis side rails and cross members, Crane telescope booms and lattice structures, Earthmoving equipment buckets and arms, Bridge girders and structural frames, Railway wagon bogies
Application industries: Automotive (chassis, frames, structural reinforcements), Mobile cranes and lifting equipment, Construction machinery (excavator booms, bulldozer parts), Bridge construction, Shipbuilding (selected structural elements)
EStE500 Hot Rolled Steel Coil per DIN 17102 Similar Materials and Possible Substitutes
| Country / Region | Standard | Grade | Remarks |
|---|---|---|---|
| Europe | EN 10149-2 | S550MC | Higher strength (≥550 MPa Rm 600-760), slightly lower elongation |
| Europe | EN 10149-2 | S460MC | Lower strength (≥460 MPa), higher ductility |
| China | GB/T 1591-2018 | Q550C/D | Higher strength, similar weldability |
| USA | ASTM A1011/A1011M | HSLAS Grade 80 Class 2 | Yield 550 MPa, but different chemistry; check with producer |
Notes:
- When ordering, refer to the designated heat treatment condition (e.g., controlled rolled, normalized).
- For thicknesses above 16 mm, reduced mechanical properties apply; consult the standard.
- Weldability may be influenced by actual CEV; low-hydrogen welding processes are recommended.
- The datasheet reflects the superseded DIN 17102; current projects should consider EN 10149-2 S500MC as the modern alternative.
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