EN 10149-2 S460MC Hot Rolled Steel
EN 10149-2 S460MC Hot Rolled Steel: Properties, Equivalents & Applications
Detailed material data for S460MC hot rolled steel coil according to EN 10149-2: chemical composition, mechanical and physical properties, international equivalents, similar materials, and application guide.
Cold forming, bending, roll forming, stamping, deep drawing (limited), welding, cutting, punching
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EN 10149-2 S460MC Hot Rolled Steel Introduction
S460MC is a thermo-mechanically rolled, high yield strength steel for cold forming, specified in EN 10149-2. It offers a minimum yield strength of 460 MPa combined with excellent formability and weldability. Key characteristics include:
- Fine-grain microstructure achieved by microalloying (Nb, V, Ti)
- Good cold formability for bending, profiling and punching
- Uniform mechanical properties across the thickness
- Designed for safety-critical structural components in automotive and engineering industries
EN 10149-2 S460MC Hot Rolled Steel Chemical Composition
Chemical composition according to EN 10149-2 (ladle analysis). Microalloying elements such as Nb, V and Ti are added for grain refinement and precipitation strengthening. The carbon equivalent (CEV) is typically ≤ 0.45 for good weldability.
| Element | Standard Value (wt%) | Remarks |
|---|---|---|
| Carbon (C) | ≤ 0.12 | Ladle analysis |
| Silicon (Si) | ≤ 0.50 | |
| Manganese (Mn) | ≤ 1.60 | |
| Phosphorus (P) | ≤ 0.025 | |
| Sulfur (S) | ≤ 0.015 | |
| Aluminium (Altot) | ≥ 0.015 | Fully killed steel |
| Niobium (Nb) | ≤ 0.09 | |
| Vanadium (V) | ≤ 0.20 | |
| Titanium (Ti) | ≤ 0.15 | |
| Molybdenum (Mo) | ≤ 0.50 | Optional element |
| Boron (B) | ≤ 0.005 | Optional element |
| Carbon equivalent CEV | ≤ 0.45 (typical) | CEV = C + Mn/6 + (Cr+Mo+V)/5 + (Ni+Cu)/15 |
EN 10149-2 S460MC Hot Rolled Steel Thermal and Electrical Physical Properties
The following physical properties are typical for hot-rolled low-alloy carbon steel and are not part of the standard specification. Actual values may vary depending on exact composition and processing.
| Property | Typical Value | Unit | Test Condition |
|---|---|---|---|
| Density (ρ) | 7.85 | g/cm³ | At room temperature |
| Modulus of elasticity (E) | 210 | GPa | At room temperature |
| Shear modulus (G) | ≈ 81 | GPa | Estimated from E and ν |
| Poisson's ratio (ν) | 0.3 | – | At room temperature |
| Coefficient of thermal expansion (α) | 12 × 10⁻⁶ | K⁻¹ | Between 20 °C and 100 °C |
| Thermal conductivity (λ) | 50 | W/(m·K) | At room temperature |
| Specific heat capacity (cp) | 460 | J/(kg·K) | At room temperature |
| Electrical resistivity (ρe) | 0.2 × 10⁻⁶ | Ω·m | At room temperature |
EN 10149-2 S460MC Hot Rolled Steel Mechanical Properties
Typical mechanical properties according to EN 10149-2. Elongation requirements differ for thickness below 3 mm (A80) and above 3 mm (A5). Bending test with 180° bend and no cracks. Impact toughness is not specified for this grade.
| Property | Standard Value | Unit | Test Condition |
|---|---|---|---|
| Yield strength (ReH) | ≥ 460 | MPa | Transverse direction, nominal thickness ≤ 16 mm |
| Tensile strength (Rm) | 520 – 670 | MPa | Transverse direction, all thicknesses |
| Elongation after fracture (A80) | ≥ 12 (transverse) / ≥ 14 (longitudinal) | % | Gauge length 80 mm, thickness < 3 mm |
| Elongation after fracture (A) | ≥ 15 (transverse) / ≥ 17 (longitudinal) | % | Proportional gauge length 5.65√S0, thickness ≥ 3 mm |
| Bend test (bending angle 180°) | Mandrel diameter ≤ 0.5t (t = plate thickness) | – | No cracks on tension side |
EN 10149-2 S460MC Hot Rolled Steel Identical Grade Designations
| Country / Region | Standard | Grade | Remarks |
|---|---|---|---|
| European Union / CEN | EN 10149-2 | S460MC | Base standard |
| United Kingdom | BS EN 10149-2 | S460MC | Identical to EN 10149-2 |
| Germany | DIN EN 10149-2 | S460MC | Also known by former designation QStE460TM |
| France | NF EN 10149-2 | S460MC | Identical to EN 10149-2 |
| Italy | UNI EN 10149-2 | S460MC | Identical to EN 10149-2 |
| Spain | UNE EN 10149-2 | S460MC | Identical to EN 10149-2 |
| Sweden | SS-EN 10149-2 | S460MC | Identical to EN 10149-2 |
EN 10149-2 S460MC Hot Rolled Steel Application Introduction
S460MC is specifically designed for cold-forming processes. It is widely used in weight-optimised structures where high static and dynamic loads occur. Its good weldability allows easy integration into welded assemblies. Typical applications include:
- Automotive chassis and body-in-white components
- Profiles for commercial vehicles and trailers
- Structural parts in cranes and lifting equipment
- Roll-formed sections for construction and storage systems
Product Applications: Vehicle chassis frames, Longitudinal and cross members, Crane booms and telescopic arms, Roll-formed hollow sections, Welded tubes and pipes, Reinforcement brackets and plates, Agricultural equipment chassis, Forklift masts and supports
Processed into products: Truck frame rails, Subframe connectors, Axle beams, Bumper reinforcements, Seat rails and backrest frames, Wheel rims (inner/outer parts), Support arms for hydraulic systems, Shelving uprights and beams, Guardrails and safety barriers
Application industries: Automotive, Heavy vehicle & trailer manufacturing, Construction & civil engineering, Mechanical engineering, Material handling & agricultural machinery
EN 10149-2 S460MC Hot Rolled Steel Similar / Close Alternative Materials
| Country / Region | Standard | Grade | Remarks |
|---|---|---|---|
| European Union | EN 10149-2 | S420MC | Lower minimum yield strength (420 MPa); similar formability but reduced load capacity |
| European Union | EN 10149-2 | S500MC | Higher minimum yield strength (500 MPa); slightly lower formability, may require larger bending radii |
| International | ISO 6930-1 | HR460MC | Equivalent in the ISO system; comparable chemical and mechanical requirements |
| Germany (historical) | EN 10149-2 (former designation) | QStE460TM | Old grade name, technically identical to S460MC; still used in some supply chains |
| USA (approximate) | ASTM A1011 / A1011M | HSLAS Grade 65 Class 1 | Minimum yield strength ~450 MPa (65 ksi); similar concept but alloy design may differ; check formability |
Notes:
S460MC is a thermo-mechanically rolled (M) delivery condition and is not intended for subsequent heat treatment (except stress relieving). The steel offers good weldability with common methods (MAG, resistance spot welding) when using appropriate consumables. It should be stored in dry conditions to prevent corrosion. Cold forming limits must respect the recommended minimum bending radii to avoid cracking. For specific thicknesses outside the standard range, consult mill specifications.
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