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Technical Specifications
Product Overview
Metallurgical Characteristics
High Tensile Steel features a refined tempered martensitic or bainitic microstructure achieved through controlled quenching and tempering processes. The optimized alloy composition with chromium, molybdenum, and vanadium provides excellent hardenability and precipitation strengthening, resulting in superior strength-to-weight ratios and enhanced fatigue resistance critical for high-stress applications.
Heat Treatment Process
MetalZenith employs precision quenching at 850-900°C followed by controlled tempering at 580-650°C to achieve optimal mechanical properties. Our advanced heat treatment facilities ensure uniform heating, controlled cooling rates, and precise temperature monitoring throughout the process, guaranteeing consistent properties and dimensional stability.
Manufacturing Excellence
MetalZenith's state-of-the-art production facilities utilize electric arc furnace steelmaking with secondary refining, continuous casting, and controlled rolling processes. Our integrated quality management system ensures optimal chemical composition control, inclusion cleanliness, and microstructural uniformity essential for high-strength applications.
Specialized Quality Testing
Comprehensive testing protocols include formability assessment through bend testing and deep drawing evaluation, weldability testing with preheating and PWHT optimization, hydrogen-induced cracking resistance testing per NACE standards, and delayed fracture evaluation under sustained loading conditions. These specialized tests ensure reliable performance in critical structural applications.
Application Engineering
For automotive applications, our High Tensile Steel provides excellent crash energy absorption and weight reduction capabilities. In building construction, the superior strength enables reduced section sizes and optimized structural designs. Bridge engineering benefits from enhanced fatigue resistance and long-term durability. Heavy lifting equipment applications leverage the exceptional strength-to-weight ratio, while pressure vessel applications benefit from superior toughness and resistance to stress corrosion cracking.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.12 - 0.20 |
| Manganese (Mn) | 1.20 - 1.80 |
| Silicon (Si) | 0.15 - 0.60 |
| Phosphorus (P) | ≤ 0.020 |
| Sulfur (S) | ≤ 0.015 |
| Chromium (Cr) | 0.30 - 0.80 |
| Nickel (Ni) | 0.20 - 0.50 |
| Molybdenum (Mo) | 0.15 - 0.35 |
| Vanadium (V) | 0.03 - 0.08 |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Yield Strength (MPa) | ≥ 550 |
| Tensile Strength (MPa) | 700 - 900 |
| Elongation (%) | ≥ 16 |
| Impact Toughness at 0°C (J) | ≥ 40 |
| Fatigue Strength (MPa) | ≥ 280 |
| Hardness (HB) | 220 - 280 |
🔬 Physical Properties
| Property | Value |
|---|---|
| Density (g/cm3) | 7.85 |
| Melting Point (°C) | 1480 - 1520 |
| Thermal Conductivity (W/m·K) | 42.5 |
| Thermal Expansion (×10??/K) | 11.8 |
| Elastic Modulus (GPa) | 210 |
| Poisson's Ratio | 0.27 - 0.30 |
📏 Product Specifications
| Specification | Details |
|---|---|
| Available Forms | Plates, Sheets, Bars, Tubes, Forgings, Structural Sections |
| Thickness Range | 3 - 150mm |
| Width Range | 1000 - 3500mm |
| Length Range | 6000 - 15000mm |
| Standards Compliance | ASTM A514, ASTM A709, EN 10025-6, JIS G3106 |
| Heat Treatment Condition | Quenched and Tempered (Q&T) or TMCP |
| Surface Finish | Hot Rolled, Pickled, Shot Blasted |
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Our Advantages in Processing High Tensile Steel
Advanced Thermomechanical Processing
MetalZenith utilizes state-of-the-art TMCP technology with precise temperature control and controlled rolling schedules to achieve optimal grain refinement and precipitation strengthening. Our advanced processing ensures superior strength-to-weight ratios and enhanced fatigue resistance critical for high-stress applications.
Comprehensive Performance Testing
MetalZenith conducts extensive testing protocols including formability analysis, weldability assessments, hydrogen-induced cracking resistance, and delayed fracture evaluation. Our specialized testing ensures reliable performance in critical applications requiring superior mechanical properties and structural integrity.
Custom Engineering Solutions
MetalZenith provides tailored processing solutions including custom heat treatment schedules, precision cutting, and application-specific property optimization. Our technical team offers comprehensive support for material selection and processing parameters to meet specific project requirements.
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