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Technical Specifications
Product Overview
Metallurgical Characteristics
Grade 5 steel features a refined tempered martensitic microstructure with fine carbide precipitation, 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 ratio essential for structural applications.
Heat Treatment Process
MetalZenith employs controlled austenitizing at 850-900°C followed by rapid quenching and precise tempering at 580-620°C. This thermomechanical treatment ensures optimal balance between strength and toughness while maintaining excellent weldability for structural fabrication requirements.
Manufacturing Process Excellence
Our advanced manufacturing process incorporates electric arc furnace melting with secondary refining, continuous casting, and controlled rolling technology. Real-time monitoring of chemical composition and temperature profiles ensures consistent mechanical properties and dimensional accuracy throughout production batches.
Structural Performance Testing
Grade 5 steel undergoes comprehensive testing including welding performance evaluation per AWS D1.1 standards, forming capability assessment for cold bending operations, fatigue strength testing under cyclic loading conditions, and atmospheric corrosion resistance evaluation for long-term structural integrity in various environmental conditions.
Application-Specific Engineering
For building construction applications, Grade 5 provides excellent seismic resistance and fire performance. In bridge engineering, the superior fatigue resistance ensures long-term structural integrity under dynamic loading. For machinery manufacturing, the combination of high strength and machinability enables complex component fabrication. In vehicle construction, the excellent forming characteristics allow for efficient production of chassis components while maintaining crash safety requirements.
🧪 Chemical Composition
Element | Composition (%) |
---|---|
Carbon (C) | 0.20 - 0.25 |
Manganese (Mn) | 1.20 - 1.50 |
Silicon (Si) | 0.15 - 0.40 |
Phosphorus (P) | ≤ 0.030 |
Sulfur (S) | ≤ 0.030 |
Chromium (Cr) | 0.40 - 0.65 |
Molybdenum (Mo) | 0.15 - 0.25 |
Vanadium (V) | 0.03 - 0.08 |
⚙️ Mechanical Properties
Property | Value |
---|---|
Yield Strength (MPa) | ≥ 450 |
Tensile Strength (MPa) | 550 - 700 |
Elongation (%) | ≥ 18 |
Impact Energy at 0°C (J) | ≥ 35 |
Hardness (HB) | 170 - 220 |
Fatigue Strength (MPa) | ≥ 200 |
🔬 Physical Properties
Property | Value |
---|---|
Density (g/cm3) | 7.85 |
Melting Point (°C) | 1480 - 1520 |
Thermal Conductivity (W/m·K) | 44.5 |
Thermal Expansion (×10??/K) | 11.8 |
Elastic Modulus (GPa) | 210 |
Poisson's Ratio | 0.27 - 0.30 |
📏 Product Specifications
Specification | Details |
---|---|
Available Forms | Plates, Beams, Channels, Angles, Bars, Tubes |
Thickness Range | 8 - 150mm |
Width Range | 1200 - 3500mm |
Length Range | 6000 - 15000mm |
Standards Compliance | ASTM A572 Grade 50, EN 10025-6, JIS G3106 |
Heat Treatment Condition | Quenched and Tempered or TMCP |
Surface Finish | Hot Rolled, Pickled, Shot Blasted |
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Our Advantages in Processing Grade 5 Steel

Advanced Thermomechanical Processing
MetalZenith employs controlled rolling with precise quenching and tempering processes, utilizing real-time temperature monitoring to achieve optimal grain structure and enhanced mechanical properties. Our advanced processing ensures consistent strength and toughness throughout the material cross-section for superior structural performance.
Comprehensive Structural Testing
Our Grade 5 steel undergoes rigorous testing including welding performance evaluation, forming capability assessment, fatigue strength testing, and atmospheric corrosion resistance analysis. This comprehensive testing ensures optimal performance in structural applications with superior joint integrity and long-term durability.


Custom Structural Solutions
MetalZenith provides tailored processing services including precision cutting, forming, and heat treatment optimization for specific structural applications. Our technical support team works closely with engineers to deliver customized solutions for complex construction and manufacturing requirements.
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