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Technical Specifications
Product Overview
Metallurgical Characteristics
Molybdenum Steel exhibits a refined tempered martensitic microstructure with uniformly distributed molybdenum carbides that provide exceptional strength and toughness. The molybdenum addition significantly enhances hardenability, allowing for through-hardening in heavy sections while maintaining excellent impact resistance and ductility.
Heat Treatment Process
MetalZenith employs controlled austenitizing at 870-920°C followed by oil or water quenching and tempering at 580-650°C. This optimized heat treatment cycle ensures maximum strength development while maintaining adequate toughness for structural applications.
Manufacturing Process
Our advanced manufacturing process includes electric arc furnace melting with secondary refining, vacuum degassing for cleanliness, and controlled rolling to optimize grain structure. Precise temperature control throughout processing ensures consistent mechanical properties and dimensional accuracy.
Structural Performance Testing
Comprehensive testing protocols include welding performance evaluation using standard procedures, forming capability assessment through bend testing, fatigue strength determination under cyclic loading conditions, and atmospheric corrosion resistance testing in various environmental conditions to ensure long-term structural integrity.
Engineering Applications Considerations
For building construction, the steel provides excellent load-bearing capacity and seismic resistance. In bridge engineering, superior fatigue resistance ensures long service life under dynamic loading. For machinery manufacturing, enhanced hardenability enables precision component production. In vehicle manufacturing, the high strength-to-weight ratio optimizes structural efficiency while maintaining safety standards.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.15 - 0.25 |
| Manganese (Mn) | 0.80 - 1.20 |
| Silicon (Si) | 0.20 - 0.60 |
| Molybdenum (Mo) | 0.40 - 0.70 |
| Chromium (Cr) | 0.30 - 0.60 |
| Phosphorus (P) | ≤ 0.020 |
| Sulfur (S) | ≤ 0.015 |
| Nickel (Ni) | 0.20 - 0.40 |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Yield Strength (MPa) | ≥ 450 |
| Tensile Strength (MPa) | 620 - 780 |
| Elongation (%) | ≥ 18 |
| Impact Energy at 0°C (J) | ≥ 35 |
| Hardness (HB) | 180 - 230 |
| Fatigue Strength (MPa) | 280 - 320 |
🔬 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 | 0.28 |
📏 Product Specifications
| Specification | Details |
|---|---|
| Available Forms | Plates, Beams, Channels, Bars, Forgings, Custom Sections |
| Thickness Range | 8 - 150mm |
| Width Range | 1200 - 3500mm |
| Length Range | 6000 - 15000mm |
| Standards Compliance | ASTM A514, AISC 360, EN 10025, JIS G3106 |
| Heat Treatment Condition | Quenched and Tempered (Q&T) |
| Surface Finish | Hot Rolled, Normalized, Shot Blasted |
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Our Advantages in Processing Molybdenum Steel
Advanced Vacuum Degassing Technology
MetalZenith utilizes advanced vacuum degassing and controlled atmosphere melting to minimize impurities and optimize molybdenum distribution. Our precision-controlled cooling processes ensure uniform microstructure and enhanced mechanical properties throughout the material thickness.
Comprehensive Structural Performance Testing
Our rigorous testing protocols include advanced welding performance evaluation, forming capability assessment, fatigue strength testing under cyclic loading, and atmospheric corrosion resistance testing to ensure optimal performance in structural applications.
Custom Engineering Solutions
MetalZenith provides tailored heat treatment schedules, custom dimensional specifications, and comprehensive technical support to optimize Molybdenum Steel performance for specific structural engineering requirements and load-bearing applications.
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