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Technical Specifications
Product Overview
Metallurgical Characteristics
AISI 52100 is a through-hardening, high-carbon chromium bearing steel with exceptional hardenability and wear resistance. The steel's microstructure consists of fine pearlite in the annealed condition, transforming to martensite with uniformly distributed chromium carbides upon hardening. This unique carbide distribution provides superior rolling contact fatigue resistance and dimensional stability under high-stress conditions.
Heat Treatment Process
MetalZenith employs precise heat treatment protocols for AISI 52100, including austenitizing at 820-860°C, followed by oil or air quenching to achieve optimal hardness. Tempering is performed at 150-200°C to relieve internal stresses while maintaining maximum hardness. Our controlled atmosphere furnaces ensure consistent results and prevent decarburization, critical for bearing applications.
Manufacturing Excellence
Our advanced electric arc furnace technology combined with ladle metallurgy and vacuum degassing produces AISI 52100 with exceptional cleanliness and homogeneity. Secondary refining processes remove harmful inclusions, while controlled solidification ensures uniform carbide distribution. Hot working and precision machining capabilities enable delivery of components to exact specifications.
Quality Standards & Testing
MetalZenith maintains rigorous quality control through comprehensive testing including chemical analysis, mechanical property verification, ultrasonic inspection, and microstructural examination. All products comply with international standards including ASTM A295, EN 100Cr6, and JIS SUJ2, with full material traceability and certified test reports provided for each shipment.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.98 - 1.10 |
| Chromium (Cr) | 1.30 - 1.60 |
| Manganese (Mn) | 0.25 - 0.45 |
| Silicon (Si) | 0.15 - 0.35 |
| Phosphorus (P) | ≤ 0.025 |
| Sulfur (S) | ≤ 0.025 |
| Nickel (Ni) | ≤ 0.25 |
| Copper (Cu) | ≤ 0.25 |
| Molybdenum (Mo) | ≤ 0.10 |
| Aluminum (Al) | ≤ 0.050 |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength (Annealed) | 850 - 1000 MPa |
| Yield Strength (Annealed) | 540 - 650 MPa |
| Elongation (Annealed) | 12 - 18% |
| Reduction of Area (Annealed) | 35 - 45% |
| Hardness (Annealed) | 255 - 285 HB |
| Hardness (Hardened & Tempered) | 60 - 67 HRC |
| Impact Energy (Annealed) | 15 - 25 J |
| Fatigue Limit (Rotating Beam) | 400 - 500 MPa |
| Young's Modulus | 210 GPa |
| Poisson's Ratio | 0.27 - 0.30 |
🔬 Physical Properties
| Property | Value |
|---|---|
| Density | 7.81 g/cm³ |
| Melting Point | 1424 - 1460°C |
| Thermal Conductivity (20°C) | 42.7 W/m·K |
| Thermal Expansion Coefficient (20-100°C) | 11.5×10-6/K |
| Specific Heat Capacity | 460 J/kg·K |
| Electrical Resistivity (20°C) | 0.25 µΩ·m |
| Magnetic Permeability | Ferromagnetic |
| Curie Temperature | 760°C |
| Thermal Diffusivity (20°C) | 11.9 mm²/s |
| Coercive Force (Hardened) | 8000 - 12000 A/m |
📏 Product Specifications
| Specification | Available Options |
|---|---|
| Product Forms | Round bars, square bars, flat bars, plates, sheets, tubes, forgings |
| Round Bar Diameter | 6mm - 300mm |
| Plate Thickness | 5mm - 100mm |
| Sheet Thickness | 0.5mm - 5mm |
| Standard Lengths | 3m, 6m, 12m (custom lengths available) |
| Surface Finish | Hot rolled, cold drawn, turned, ground, polished |
| Tolerance Class | h9, h10, h11 (precision tolerances available) |
| Heat Treatment Condition | Annealed, normalized, hardened & tempered |
| Standards Compliance | ASTM A295, SAE 52100, EN 100Cr6, JIS SUJ2 |
| Quality Grades | Standard grade, bearing grade, tool grade |
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Our Advantages in Processing AISI 52100
Advanced Vacuum Degassing Technology
MetalZenith employs cutting-edge vacuum degassing and ladle refining processes to achieve ultra-low inclusion content and superior steel cleanliness, resulting in AISI 52100 with enhanced fatigue life and reliability for critical bearing applications.
Precision Heat Treatment Control
Our computer-controlled heat treatment facilities with precise temperature monitoring and controlled atmosphere furnaces ensure optimal carbide distribution and consistent hardness throughout the material, meeting the most stringent quality specifications.
Comprehensive Testing & Customization
MetalZenith provides complete material traceability with certified test reports, ultrasonic inspection, and custom processing capabilities including various surface finishes, dimensional tolerances, and packaging solutions tailored to specific customer requirements.
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