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We have 20 years of industry experience, have partnered with over 1,000 brands, and support any customization needs.
Technical Specifications
Product Overview
Metallurgical Characteristics
JIS SKD11 is a high-carbon, high-chromium cold work tool steel with exceptional wear resistance and dimensional stability. The steel's microstructure consists of a martensitic matrix with uniformly distributed chromium carbides (Cr7C3 and Cr23C6), providing superior abrasion resistance and edge retention. The high chromium content (11-13%) ensures excellent hardenability and corrosion resistance compared to conventional tool steels.
Heat Treatment Process
MetalZenith's optimized heat treatment protocol includes preheating to 650-700°C, austenitizing at 1000-1030°C in controlled atmosphere, followed by oil or air quenching to achieve 58-62 HRC. Tempering is performed at 150-200°C for maximum hardness or 450-550°C for improved toughness. Our vacuum heat treatment facilities ensure minimal decarburization and optimal dimensional stability.
Manufacturing Process
Our production process begins with electric arc furnace melting followed by ladle refining and vacuum degassing. The steel undergoes electroslag remelting (ESR) for enhanced cleanliness and homogeneity. Hot forging is performed using computer-controlled hydraulic presses to achieve optimal grain flow and mechanical properties. All products receive ultrasonic testing and dimensional inspection before shipment.
Quality Standards & Certifications
MetalZenith maintains ISO 9001:2015, ISO 14001:2015, and OHSAS 18001 certifications. Our quality management system includes incoming material inspection, in-process monitoring, and final product testing. Chemical composition verification is performed using optical emission spectrometry, while mechanical properties are validated through standardized testing procedures. Material certificates include chemical analysis, mechanical properties, heat treatment records, and traceability documentation.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | 1.40-1.60 |
| Silicon (Si) | 0.10-0.60 |
| Manganese (Mn) | 0.20-0.60 |
| Phosphorus (P) | ≤ 0.030 |
| Sulfur (S) | ≤ 0.030 |
| Chromium (Cr) | 11.00-13.00 |
| Molybdenum (Mo) | 0.70-1.20 |
| Vanadium (V) | 0.10-0.50 |
| Nickel (Ni) | ≤ 0.30 |
| Copper (Cu) | ≤ 0.25 |
⚙️ Mechanical Properties
| Property | Value | Condition |
|---|---|---|
| Tensile Strength | 750-950 MPa | Annealed |
| Yield Strength | 450-650 MPa | Annealed |
| Elongation | 8-12% | Annealed |
| Reduction of Area | 15-25% | Annealed |
| Hardness (Annealed) | 255-285 HB | Annealed |
| Hardness (Quenched & Tempered) | 58-62 HRC | Heat Treated |
| Impact Energy (Charpy V) | 15-25 J | Annealed |
| Fatigue Limit | 350-450 MPa | Heat Treated |
| Compressive Strength | 2800-3200 MPa | Heat Treated |
🔬 Physical Properties
| Property | Value | Temperature |
|---|---|---|
| Density | 7.70 g/cm³ | 20°C |
| Melting Point | 1420-1460°C | - |
| Thermal Conductivity | 20.5 W/m·K | 20°C |
| Thermal Expansion Coefficient | 11.5×10-6/K | 20-100°C |
| Specific Heat Capacity | 460 J/kg·K | 20°C |
| Electrical Resistivity | 0.55 µΩ·m | 20°C |
| Young's Modulus | 210 GPa | 20°C |
| Poisson's Ratio | 0.27-0.30 | 20°C |
| Magnetic Permeability | Ferromagnetic | 20°C |
📏 Product Specifications
| Specification | Available Options | Standards |
|---|---|---|
| Product Forms | Round Bar, Flat Bar, Square Bar, Plate, Sheet, Forged Block | JIS G4404 |
| Round Bar Diameter | 6-500 mm | JIS G4401 |
| Flat Bar Thickness | 3-200 mm | JIS G4404 |
| Plate Thickness | 10-300 mm | JIS G4404 |
| Length | Up to 6000 mm (Custom lengths available) | Customer Specification |
| Surface Finish | Hot Rolled, Cold Drawn, Turned, Ground, Polished | JIS B0601 |
| Dimensional Tolerance | h9 to h11 (Standard), h6 to h8 (Precision) | JIS B0401 |
| Heat Treatment Condition | Annealed, Normalized, Quenched & Tempered | JIS G0201 |
| Quality Grade | Standard, Premium, Ultra-Clean | MetalZenith Standard |
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Our Advantages in Processing JIS SKD11
Advanced Vacuum Melting Technology
MetalZenith employs state-of-the-art vacuum induction melting (VIM) and electroslag remelting (ESR) processes to produce JIS SKD11 with superior cleanliness, reduced segregation, and enhanced mechanical properties. Our controlled atmosphere processing eliminates harmful inclusions and ensures optimal carbide distribution.
Comprehensive Quality Control System
Our integrated quality management system features real-time chemical analysis, automated mechanical testing, and advanced ultrasonic inspection. Every heat of JIS SKD11 undergoes rigorous testing protocols including hardenability verification, microstructure analysis, and dimensional accuracy validation to guarantee consistent performance.
Custom Processing & Global Supply Chain
MetalZenith offers extensive customization capabilities including precision machining, heat treatment services, and special surface treatments. Our global distribution network ensures rapid delivery worldwide, while our technical support team provides application-specific recommendations and processing guidance for optimal tool performance.
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