DP600 STEEL – AUTOMOTIVE STEEL
DP600 STEEL – AUTOMOTIVE STEEL
DP600 steel is a high-strength, low-alloy dual-phase steel, with “DP” indicating its dual-phase microstructure and “600” its tensile strength of 600 MPa. Comprising 98% iron and small amounts of carbon, manganese, and silicon, it offers an excellent balance of strength and ductility. Available in sheets or coils, DP600 is extensively used in the automotive industry for structural components, body panels, crash components, and safety parts.
Description
What is DP 600？
DP600 steel, primarily composed of approximately 98% iron with additional small amounts of carbon (0.15%), manganese (1.5%), and silicon (0.5%), is a dual-phase steel. It comes in solid sheets or coils with a metallic grey color. Known for its high strength and ductility, this advanced high-strength steel (AHSS) is ideal for automotive structural and safety components. Typically processed through hot rolling, DP600 belongs to the category of dual-phase steels.Characteristics of DP 600 Steel
Chemical Compositions
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.12 – 0.20 |
| Manganese (Mn) | 1.0 – 1.6 |
| Silicon (Si) | ≤ 0.5 |
| Phosphorus (P) | ≤ 0.03 |
| Sulfur (S) | ≤ 0.03 |
| Chromium (Cr) | 0.1 – 0.5 |
| Nickel (Ni) | ≤ 0.3 |
| Molybdenum (Mo) | 0.02 – 0.2 |
| Copper (Cu) | ≤ 0.2 |
Physical Properties
| Property | Value (Metric) | Value (Imperial) |
|---|---|---|
| Density | 7.7 g/cm³ | 0.278 lb/in³ |
| Melting Point | 1420°C – 1490°C | 2588°F – 2714°F |
| Thermal Conductivity | 20.0 W/m·K | 11.6 BTU·in/hr·ft²·°F |
| Specific Heat Capacity | 460 J/kg·K | 0.110 BTU/lb·°F |
| Thermal Expansion Coefficient | 11.4 x 10⁻⁶ /°C | 6.3 x 10⁻⁶ /°F |
| Electrical Resistivity | 0.55 x 10⁻⁶ Ω·m | 0.55 x 10⁻⁶ Ω·m |
Mechanical Properties
| Property | Value (Metric) | Value (Imperial) |
|---|---|---|
| Tensile Strength | 600-700 MPa | 87-102 ksi |
| Yield Strength | 350-550 MPa | 51-80 ksi |
| Vickers Hardness (HV) | 180-230 | 180-230 |
| Brinell Hardness (HB) | 170-210 | 170-210 |
| Rockwell Hardness (HRC) | 20-30 | 20-30 |
| Elongation | 18-24% | 18-24% |
| Elastic Modulus | 210 GPa | 30.5 Msi |
Mechanical Properties of DP600 after Quenching and Tempering (QT)
| Property | Value (Metric) | Value (Imperial) |
|---|---|---|
| Tensile Strength | 980-1250 MPa | 142-181 ksi |
| Yield Strength | 785-930 MPa | 114-135 ksi |
| Impact Toughness | 60 J | 44 ft-lb |
| Elongation | 10-20% | 10-20% |
| Section Shrinkage | 40-60% | 40-60% |
Industries & Applications
| Industry | Applications |
|---|---|
| Automotive Industry | Body Panels, Structural Components, Crash Components, Safety Components |
| Construction Industry | Structural Beams, Framework, Reinforcements, Roofing |
| Energy Industry | Pipelines, Wind Turbines, Solar Panels, Hydroelectric |
| Aerospace Industry | Fuselage, Wings, Landing Gear, Engine Mounts |
| Rail Industry | Railcars, Supports, Safety, Infrastructure |
| Heavy Machinery | Excavators, Cranes, Mining, Agriculture |
| Marine Industry | Ship Hulls, Offshore, Decks, Containers |
| Defense Industry | Armored Vehicles, Aircraft, Naval Ships, Weapons |
| Industrial Equipment | Machinery, Conveyors, Robotics, Storage |
Machining
DP600 Heat Treating Instructions
DP600 undergoes a precise heat treatment process to enhance its mechanical properties, including improved strength, ductility, and formability. The specific heat treatment parameters are carefully controlled to achieve the desired balance of hardness and toughness, making it suitable for various demanding applications.
DP600 Surface Finish
DP600 can be finished with a variety of surface treatments to enhance its performance and appearance, depending on the intended use. These treatments may include coating, galvanizing, or polishing to improve corrosion resistance, wear resistance, and overall durability. Surface roughness and texture can also be adjusted to meet specific functional or aesthetic requirements. Grades can be customized according to specific requirements.
Customized grades are available upon request.
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