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Technical Specifications
Product Overview
Metallurgical Characteristics
TRIP 600 steel exhibits a complex multi-phase microstructure consisting of ferrite, bainite, and retained austenite phases. The retained austenite content typically ranges from 8-15%, which transforms to martensite during deformation, providing exceptional work hardening behavior and superior formability. MetalZenith's controlled processing ensures optimal phase distribution through precise intercritical annealing followed by isothermal bainite transformation.
Heat Treatment Process
Our advanced continuous annealing line operates with precise temperature control during the intercritical annealing stage (750-800°C), followed by rapid cooling to the bainite transformation temperature (400-450°C). The isothermal holding time is carefully controlled to achieve optimal bainite formation while preserving sufficient retained austenite for TRIP effect activation during forming operations.
Manufacturing Process Control
MetalZenith employs state-of-the-art hot rolling and cold rolling facilities with integrated process control systems. Chemical composition is precisely controlled through advanced ladle metallurgy, while mechanical properties are optimized through controlled cooling rates and annealing parameters. Real-time monitoring ensures consistent microstructure development and mechanical property achievement.
Quality Standards & Testing
All TRIP 600 production undergoes comprehensive quality verification including chemical analysis via optical emission spectroscopy, mechanical testing per ASTM A370 and EN ISO 6892, and metallographic examination for phase identification. Formability testing includes hole expansion, cup drawing, and bend testing to verify forming performance. Statistical process control ensures 99.7% specification compliance with Cpk values exceeding 1.33 for critical parameters.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.15 - 0.25 |
| Manganese (Mn) | 1.50 - 2.20 |
| Silicon (Si) | 0.80 - 1.50 |
| Phosphorus (P) | ≤ 0.030 |
| Sulfur (S) | ≤ 0.015 |
| Aluminum (Al) | 0.020 - 0.080 |
| Chromium (Cr) | 0.30 - 0.80 |
| Molybdenum (Mo) | 0.10 - 0.30 |
| Nickel (Ni) | ≤ 0.20 |
| Copper (Cu) | ≤ 0.20 |
| Nitrogen (N) | ≤ 0.010 |
| Titanium (Ti) | ≤ 0.050 |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength (Rm) | 600 - 750 MPa |
| Yield Strength (Rp0.2) | 350 - 450 MPa |
| Elongation (A80) | ≥ 30% |
| Total Elongation (At) | ≥ 32% |
| Uniform Elongation (Ag) | ≥ 20% |
| Hardness (HV10) | 180 - 220 |
| Hole Expansion Ratio (λ) | ≥ 60% |
| r-value (Lankford coefficient) | 0.7 - 1.0 |
| n-value (Strain hardening exponent) | 0.18 - 0.25 |
| Bending Radius (90°) | 0.5t - 1.0t |
| Impact Energy (Charpy V-notch, 20°C) | ≥ 80 J |
| Fatigue Limit (107 cycles) | 280 - 320 MPa |
🔬 Physical Properties
| Property | Value |
|---|---|
| Density | 7.85 g/cm³ |
| Melting Point | 1510 - 1530°C |
| Young's Modulus | 210 GPa |
| Poisson's Ratio | 0.27 - 0.30 |
| Thermal Expansion Coefficient (20-100°C) | 12.5×10-6/K |
| Thermal Conductivity (20°C) | 45 - 50 W/m·K |
| Specific Heat Capacity | 460 J/kg·K |
| Electrical Resistivity (20°C) | 0.18 - 0.22 µΩ·m |
| Magnetic Permeability | Ferromagnetic |
| Curie Temperature | 750 - 780°C |
| Thermal Diffusivity (20°C) | 12.5×10-6 m²/s |
📏 Product Specifications
| Specification | Available Options |
|---|---|
| Product Forms | Cold rolled sheet, Hot rolled sheet, Coil, Cut-to-length |
| Thickness Range | 0.6 - 3.0 mm (Cold rolled), 1.5 - 8.0 mm (Hot rolled) |
| Width Range | 600 - 2100 mm |
| Length Range | 1000 - 6000 mm (Cut sheets), Coil up to 30 tons |
| Thickness Tolerance | ±0.02 - ±0.05 mm (depending on thickness) |
| Width Tolerance | ±2.0 mm |
| Surface Finish | Mill finish, Oiled, Phosphated, Galvanized |
| Edge Condition | Mill edge, Slit edge, Trimmed edge |
| Standards Compliance | EN 10338, ASTM A1011, JIS G3135, GB/T 34566 |
| Flatness | ≤ 3 I-units (Cold rolled), ≤ 5 I-units (Hot rolled) |
| Coil Weight | 5 - 30 tons (standard), Custom weights available |
| Packaging | Steel strapping, Wooden pallets, Waterproof covering |
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Our Advantages in Processing TRIP 600
Advanced Multi-Phase Microstructure Control
MetalZenith employs proprietary continuous annealing technology with precise temperature control to achieve optimal retained austenite content (8-15%), ensuring superior work hardening behavior and exceptional formability during complex stamping operations.
Comprehensive Quality Testing & Certification
Our state-of-the-art testing laboratory conducts full mechanical property verification, including hole expansion testing, bend testing, and fatigue analysis, backed by ISO 9001:2015 and IATF 16949 certifications for automotive applications.
Flexible Supply & Custom Processing
MetalZenith offers extensive customization options including specific thickness tolerances, surface treatments, and cut-to-length services, supported by our global distribution network ensuring reliable delivery worldwide.
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