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Technical Specifications
Product Overview
Metallurgical Structure and Characteristics
CP 800 complex phase steel features a sophisticated microstructure consisting of ferrite, bainite, martensite, and retained austenite phases. This multi-phase composition is achieved through controlled thermomechanical processing and precise cooling strategies that optimize the balance between strength and formability. The fine-grained microstructure provides excellent work hardening characteristics and superior crash energy absorption properties.
Manufacturing Process
MetalZenith produces CP 800 steel through advanced hot rolling followed by controlled cooling processes. The manufacturing sequence includes:
- Vacuum degassing and continuous casting for clean steel production
- Thermomechanical controlled processing (TMCP) with precise temperature control
- Accelerated cooling and controlled coiling temperature
- Optional cold rolling and continuous annealing for enhanced properties
Heat Treatment and Processing
CP 800 steel is typically supplied in the as-rolled or normalized condition. For specific applications requiring modified properties, controlled heat treatment can be applied. The steel exhibits excellent weldability using conventional welding processes including MIG, TIG, and resistance welding. Preheating is generally not required for thicknesses up to 6mm.
Quality Standards and Testing
All CP 800 steel products undergo comprehensive testing including chemical analysis, mechanical property verification, microstructural examination, and dimensional inspection. MetalZenith maintains full traceability from raw materials through final delivery, with complete mill test certificates provided for each shipment. Advanced testing capabilities include electron microscopy, X-ray diffraction, and fatigue testing to ensure consistent quality and performance.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.05 - 0.12 |
| Manganese (Mn) | 1.20 - 2.00 |
| Silicon (Si) | 0.10 - 0.50 |
| Phosphorus (P) | ≤ 0.025 |
| Sulfur (S) | ≤ 0.015 |
| Chromium (Cr) | 0.20 - 0.80 |
| Molybdenum (Mo) | 0.10 - 0.30 |
| Aluminum (Al) | 0.020 - 0.080 |
| Niobium (Nb) | 0.015 - 0.050 |
| Titanium (Ti) | 0.010 - 0.040 |
| Vanadium (V) | 0.01 - 0.10 |
| Boron (B) | 0.0005 - 0.0050 |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength (Rm) | 800 - 950 MPa |
| Yield Strength (Rp0.2) | ≥ 500 MPa |
| Elongation (A80) | ≥ 12% |
| Uniform Elongation (Ag) | ≥ 7% |
| Hardness (HV10) | 250 - 300 |
| Impact Energy (Charpy V-notch at 20°C) | ≥ 40 J |
| Fatigue Limit (107 cycles) | 320 - 380 MPa |
| Young's Modulus | 210 GPa |
| Poisson's Ratio | 0.27 - 0.30 |
| Bend Angle (90° bend, t=1.5mm) | No cracking |
| Hole Expansion Ratio | ≥ 30% |
🔬 Physical Properties
| Property | Value |
|---|---|
| Density | 7.85 g/cm³ |
| Melting Point | 1510 - 1530°C |
| Thermal Conductivity (at 20°C) | 45 - 50 W/m·K |
| Specific Heat Capacity | 460 - 480 J/kg·K |
| Thermal Expansion Coefficient (20-100°C) | 12.5×10-6/K |
| Electrical Resistivity (at 20°C) | 0.18 - 0.22 µΩ·m |
| Magnetic Permeability | Ferromagnetic |
| Curie Temperature | 770°C |
| Thermal Diffusivity | 12 - 14 mm²/s |
| Coefficient of Linear Expansion (20-200°C) | 13.2×10-6/K |
📏 Product Specifications
| Specification | Available Options |
|---|---|
| Product Forms | Hot rolled coil, Cold rolled coil, Sheet, Strip, Plate |
| Thickness Range | 0.8 - 8.0 mm |
| Width Range | 600 - 2100 mm |
| Coil Weight | 5 - 35 tons |
| Sheet Dimensions | 1000×2000 to 2100×6000 mm |
| Surface Finish | Hot rolled, Cold rolled, Pickled, Oiled |
| Edge Condition | Mill edge, Slit edge, Trimmed edge |
| Thickness Tolerance | ±0.02 - ±0.10 mm |
| Width Tolerance | ±3.0 mm |
| Standards Compliance | EN 10338, ASTM A1011, JIS G3135 |
| Coating Options | Galvanized, Galvalume, Organic coated |
| Packaging | Coil, Bundle, Wooden crate, Custom packaging |
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Our Advantages in Processing CP 800
Advanced Thermomechanical Processing
MetalZenith employs sophisticated thermomechanical controlled processing (TMCP) with precise temperature control and controlled cooling rates to achieve optimal microstructural development and consistent mechanical properties in CP 800 steel production.
Comprehensive Quality Control Systems
Our integrated quality management system features real-time monitoring, advanced metallurgical testing laboratories, and statistical process control to ensure every batch of CP 800 steel meets or exceeds international standards and customer specifications.
Custom Processing & Global Supply
MetalZenith offers extensive customization capabilities including specific dimensional requirements, surface treatments, and packaging solutions, supported by our global distribution network and just-in-time delivery systems for worldwide customers.
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