SAPH590 STEEL – AUTOMOTIVE STEEL
SAPH590 STEEL – AUTOMOTIVE STEEL
SAPH590 is a high-strength hot-rolled steel commonly used in the automotive industry for manufacturing structural components like chassis and suspension parts. The name “SAPH” stands for “Steel Automotive Press Hot,” indicating that it is specifically designed for automotive applications and produced through hot rolling. The “590” refers to its minimum tensile strength of 590 MPa, ensuring the material’s ability to withstand high stress and demanding conditions.
Description
What is SAPH590
SAPH590 is a high-strength hot-rolled steel composed of approximately 98-99% iron and 1-2% alloying elements such as carbon, manganese, and silicon. It is typically available in solid, flat sheet forms and has a greyish metallic appearance. As a structural steel, SAPH590 is known for its high tensile strength, good formability, and excellent weldability. It is primarily used in the automotive industry to manufacture structural components like chassis parts, body panels, and suspension systems. The steel is processed through hot rolling, which enhances its mechanical properties and makes it suitable for forming complex shapes.Characteristics of SAPH590
SAPH590 steel is characterized by its high strength, making it suitable for load-bearing structural applications. It offers excellent formability, allowing for the manufacturing of complex shapes. The steel also has good corrosion resistance, making it suitable for various environments. Widely applicable, SAPH590 is primarily used in automotive structural components like chassis and wheels, meeting the high demands for strength and safety in the automotive industry. Additionally, its elongation rate of ≥19% indicates strong deformation capacity under stress, enhancing the safety and reliability of structures.Chemical Compositions
| Element | Composition (max) |
|---|---|
| Carbon (C) | 0.20% |
| Manganese (Mn) | 1.50% |
| Phosphorus (P) | 0.040% |
| Sulfur (S) | 0.040% |
| Silicon (Si) | 0.30% |
Physical Properties
| Property | Metric | Imperial |
|---|---|---|
| Density | 7.85 g/cm³ | 0.283 lb/in³ |
| Melting Point | 1425-1460°C | 2597-2660°F |
| Boiling Point | Not typically specified | Not typically specified |
| Thermal Conductivity | 45-55 W/m·K | 26-32 Btu·ft/h·ft²·°F |
| Electrical Conductivity | 10-15% IACS | 10-15% IACS |
| Specific Heat Capacity | 450-500 J/kg·K | 0.108-0.119 Btu/lb·°F |
| Thermal Expansion Coefficient | 11-13 × 10⁻⁶ /°C | 6.1-7.2 × 10⁻⁶ /°F |
| Electrical Resistivity | 0.2-0.4 µΩ·m | 0.12-0.24 µΩ·ft |
Mechanical Properties
| Property | Metric | Imperial |
|---|---|---|
| Tensile Strength | 590 MPa | 85,560 psi |
| Yield Strength | 440 MPa | 63,816 psi |
| Brinell Hardness (HB) | 180-220 HB | 180-220 HB |
| Rockwell Hardness (HRC) | 20-25 HRC | 20-25 HRC |
| Vickers Hardness (HV) | 190-240 HV | 190-240 HV |
| Elongation | ≥19% | ≥19% |
| Elastic Modulus | 200 GPa | 29,000 ksi |
Industries & Applications
| Industry | Products |
|---|---|
| Automotive Structural Components | Body Panels, Reinforcements, Cross Members, Crash Structures |
| High-Strength Wheel Steel | Wheel Rims, Wheel Discs, Lightweight Wheels, Impact-Resistant Wheels |
| Chassis Parts | Frames, Subframes, Crossbeams, Underbody Components |
| Suspension Systems | Control Arms, Springs, Linkages, Shock Absorbers |
| Heavy Machinery | Machine Frames, Excavator Arms, Loader Frames, Hydraulic Components |
| Railway | Train Car Bodies, Rails, Bogies, Couplers |
| Construction | Building Beams, Structural Supports, Roof Trusses, Wall Panels |
| Energy Sector | Wind Turbine Towers, Oil Pipeline Components, Power Plant Structures, Solar Panel Frames |
| Shipbuilding | Hull Structures, Bulkheads, Decks, Frames |
Machining
Our Service
SteelPRO Group – manufacturer and solution provider for special steel, offering multi-industry application solutions and customised services, 100% quality free, accompanying customers in their growth!
Our Quality Control
- Roundness
- Tolerance
- Microstructure
- Non-Destructive Testing
- Destructive Testing
- Process Control
Service Integration Processing
- Welding
- Metal Fabrication
- CNC Machining
- Lathe
- Forming