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Technical Specifications
Product Overview
Metallurgical Characteristics
EN 100Cr6 is a through-hardening bearing steel with a hypereutectoid carbon content of approximately 1.0%. The steel's microstructure consists of fine pearlite in the annealed condition, transforming to martensite with dispersed chromium carbides upon hardening. The chromium content (1.35-1.65%) provides enhanced hardenability and wear resistance while maintaining dimensional stability during heat treatment.
Heat Treatment Process
MetalZenith's optimized heat treatment cycle includes:
- Spheroidizing anneal at 750-780°C for stress relief and machinability
- Austenitizing at 820-860°C with precise temperature control (±5°C)
- Oil or salt bath quenching for uniform cooling rates
- Tempering at 150-200°C to achieve target hardness of 60-67 HRC
Manufacturing Process Excellence
Our integrated manufacturing process begins with vacuum induction melting (VIM) followed by electroslag remelting (ESR) to achieve exceptional cleanliness levels. The steel undergoes controlled forging with grain flow optimization, followed by precision machining using advanced CNC equipment. Surface treatments include grinding to Ra 0.1 µm finish and optional coating applications for enhanced performance.
Quality Standards & Certifications
MetalZenith's EN 100Cr6 production complies with international standards including EN 10027-1, ASTM A295, and JIS G4805. Our quality management system encompasses:
- Chemical composition verification using optical emission spectroscopy
- Mechanical property testing per ASTM E8 and ASTM E23 standards
- Ultrasonic inspection for internal soundness per ASTM A388
- Microstructural analysis and grain size determination per ASTM E112
- Dimensional inspection using coordinate measuring machines (CMM)
Application Engineering Support
MetalZenith provides comprehensive technical support including material selection guidance, heat treatment optimization, and failure analysis services. Our metallurgical engineers collaborate with customers to develop application-specific solutions, ensuring optimal performance in demanding bearing and tooling applications.
🧪 Chemical Composition
| Element | Composition (%) | Standard Range |
|---|---|---|
| Carbon (C) | 0.95 - 1.05 | EN 10027-1 |
| Chromium (Cr) | 1.35 - 1.65 | EN 10027-1 |
| Manganese (Mn) | 0.25 - 0.45 | EN 10027-1 |
| Silicon (Si) | 0.15 - 0.35 | EN 10027-1 |
| Phosphorus (P) | ≤ 0.025 | Max |
| Sulfur (S) | ≤ 0.015 | Max |
| Nickel (Ni) | ≤ 0.30 | Max |
| Copper (Cu) | ≤ 0.25 | Max |
| Aluminum (Al) | ≤ 0.050 | Max |
| Oxygen (O) | ≤ 0.0015 | MetalZenith Premium |
⚙️ Mechanical Properties
| Property | Value | Condition |
|---|---|---|
| Tensile Strength | 2100 - 2400 MPa | Hardened & Tempered |
| Yield Strength (0.2%) | ≥ 1650 MPa | Hardened & Tempered |
| Elongation | 8 - 12% | Hardened & Tempered |
| Reduction of Area | 25 - 35% | Hardened & Tempered |
| Hardness (HRC) | 60 - 67 | Hardened & Tempered |
| Hardness (Annealed) | ≤ 255 HB | Annealed |
| Impact Energy (Charpy V) | 15 - 25 J | Room Temperature |
| Fatigue Limit | 900 - 1100 MPa | 10&sup7; cycles |
| Modulus of Elasticity | 210 GPa | Room Temperature |
| Poisson's Ratio | 0.27 - 0.30 | Room Temperature |
🔬 Physical Properties
| Property | Value | Temperature |
|---|---|---|
| Density | 7.81 g/cm³ | 20°C |
| Melting Point | 1480 - 1520°C | - |
| Thermal Conductivity | 42.6 W/m·K | 20°C |
| Thermal Expansion Coefficient | 12.1×10-6/K | 20-100°C |
| Specific Heat Capacity | 460 J/kg·K | 20°C |
| Electrical Resistivity | 0.25 µΩ·m | 20°C |
| Magnetic Permeability | Ferromagnetic | Room Temperature |
| Curie Temperature | 750°C | - |
| Thermal Diffusivity | 11.8 mm²/s | 20°C |
| Coefficient of Thermal Expansion | 13.2×10-6/K | 20-200°C |
📏 Product Specifications
| Specification | Available Options | Standards |
|---|---|---|
| Product Forms | Round bars, Square bars, Flat bars, Plates, Sheets, Tubes, Wire, Forgings | EN 10027-1 |
| Round Bar Diameter | 6mm - 500mm | EN 10060 |
| Square Bar Size | 10mm - 200mm | EN 10059 |
| Plate Thickness | 3mm - 100mm | EN 10029 |
| Standard Lengths | 3m, 6m, 12m (Custom lengths available) | EN 10060 |
| Surface Finish | Hot rolled, Cold drawn, Turned, Ground, Polished | EN 10221 |
| Dimensional Tolerance | h9, h10, h11 (Precision: ±0.05mm) | ISO 286-2 |
| Heat Treatment Condition | Annealed, Normalized, Hardened & Tempered | EN 10027-1 |
| Quality Grades | Standard, Premium, Ultra-clean (VIM/ESR) | MetalZenith Spec |
| Equivalent Standards | AISI 52100, JIS SUJ2, DIN 1.3505 | International |
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Our Advantages in Processing EN 100Cr6
Advanced Vacuum Melting Technology
MetalZenith employs cutting-edge vacuum induction melting (VIM) and electroslag remelting (ESR) processes to produce ultra-clean EN 100Cr6 steel with exceptional purity levels. Our controlled atmosphere melting reduces oxygen and nitrogen content to ≤ 10 ppm, minimizing non-metallic inclusions and ensuring superior fatigue life and reliability in critical bearing applications.
Precision Heat Treatment & Quality Control
Our state-of-the-art heat treatment facilities feature computer-controlled furnaces with precise temperature uniformity (±3°C) and atmosphere control. Every batch undergoes comprehensive testing including hardness mapping, microstructural analysis, and dimensional verification using advanced coordinate measuring machines (CMM) with ±0.001mm accuracy.
Global Supply Chain & Custom Solutions
MetalZenith's integrated supply chain spans multiple continents with strategically located processing centers and inventory hubs. We offer comprehensive customization services including precision machining, surface treatments, and packaging solutions. Our technical team provides application-specific material optimization and rapid prototyping services with typical lead times of 2-4 weeks for custom specifications.
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