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Technical Specifications
Product Overview
Metallurgical Characteristics
HY-80 is a quenched and tempered low-alloy structural steel with a predominantly tempered martensitic microstructure. The controlled addition of nickel, chromium, and molybdenum provides exceptional hardenability and strength development while maintaining excellent toughness. The fine-grained microstructure achieved through controlled heat treatment ensures superior mechanical properties and structural integrity under high-stress conditions.
Heat Treatment Process
MetalZenith employs precision austenitizing at 870-900°C followed by water quenching and tempering at 580-650°C with controlled cooling rates. Our advanced heat treatment facilities ensure uniform temperature distribution and optimal microstructural development throughout the material cross-section, achieving consistent mechanical properties and dimensional stability.
Manufacturing Process Excellence
Our HY-80 production utilizes electric arc furnace melting with secondary refining processes including ladle metallurgy and vacuum degassing. MetalZenith's controlled rolling and heat treatment sequences optimize grain structure and eliminate internal stresses, ensuring superior structural performance and reliability in demanding applications.
Specialized Quality Testing
MetalZenith conducts comprehensive testing protocols specific to structural applications including welding performance evaluation using standard procedures, forming capability assessment through bend testing, fatigue strength determination under cyclic loading, and atmospheric corrosion resistance testing. Our quality assurance program ensures optimal performance in structural environments with complete documentation and traceability.
Structural Application Engineering
For building construction and bridge engineering, HY-80 provides exceptional load-bearing capacity with reduced weight requirements. In mechanical manufacturing and vehicle construction applications, the superior strength-to-weight ratio enables optimized designs with enhanced performance. Our technical team provides specialized consultation for welding procedures, joint design, and structural analysis to ensure optimal performance in general engineering applications requiring high strength and reliability.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.18 - 0.23 |
| Manganese (Mn) | 0.10 - 0.40 |
| Silicon (Si) | 0.15 - 0.35 |
| Phosphorus (P) | ≤ 0.025 |
| Sulfur (S) | ≤ 0.025 |
| Nickel (Ni) | 2.25 - 3.50 |
| Chromium (Cr) | 1.00 - 1.80 |
| Molybdenum (Mo) | 0.20 - 0.60 |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Yield Strength (MPa) | ≥ 550 |
| Tensile Strength (MPa) | 620 - 795 |
| Elongation (%) | ≥ 18 |
| Impact Energy at -46°C (J) | ≥ 54 |
| Hardness (HB) | 180 - 240 |
| Fatigue Strength (MPa) | ≥ 275 |
🔬 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) | 12.3 |
| Elastic Modulus (GPa) | 200 |
| Poisson's Ratio | 0.27 - 0.30 |
📏 Product Specifications
| Specification | Details |
|---|---|
| Available Forms | Plates, Sheets, Bars, Structural Shapes, Forgings |
| Thickness Range | 6 - 150mm |
| Width Range | 1000 - 5000mm |
| Length Range | 6000 - 20000mm |
| Standards Compliance | ASTM A514/A517, MIL-S-16216 |
| Heat Treatment Condition | Quenched and Tempered |
| Surface Finish | Hot Rolled, Pickled, Shot Blasted |
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Our Advantages in Processing HY-80 Steel
Advanced Quench & Temper Processing
MetalZenith utilizes precision-controlled quenching and tempering processes with real-time temperature monitoring and controlled cooling rates to achieve optimal microstructural development. Our advanced heat treatment technology ensures consistent high strength properties while maintaining excellent toughness and dimensional stability throughout the material cross-section.
Comprehensive Structural Performance Testing
Our HY-80 steel undergoes extensive testing protocols including Charpy V-notch impact testing, fatigue strength evaluation, welding performance assessment, and atmospheric corrosion resistance testing. MetalZenith's quality assurance program ensures superior performance in demanding structural applications with complete documentation of mechanical properties and weldability characteristics.
Custom Structural Solutions & Engineering Support
MetalZenith provides comprehensive custom processing services including precision cutting, forming, heat treatment optimization, and technical consultation. Our engineering team offers specialized support for structural design requirements, welding procedures, and application-specific material modifications to meet unique project specifications.
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