20 Years Experience | 1000+ Brand Partners | Full Customization
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
SK5 is a high carbon structural steel with a predominantly pearlitic microstructure after normalization. The high carbon content (0.80-0.90%) provides excellent hardness and wear resistance, while controlled manganese and silicon additions enhance hardenability and strength. The fine-grained structure achieved through controlled processing ensures optimal balance of strength and toughness for structural applications.
Heat Treatment Process
MetalZenith employs precise heat treatment cycles including normalization at 850-900°C followed by controlled cooling. For enhanced properties, quenching from 820-850°C in oil or water followed by tempering at 150-200°C achieves optimal hardness. Our controlled atmosphere furnaces ensure uniform heating and prevent decarburization.
Manufacturing Process
Our SK5 steel production utilizes electric arc furnace melting with precise chemical composition control, followed by continuous casting and controlled rolling. Advanced thermomechanical processing ensures uniform grain structure and enhanced mechanical properties throughout the material cross-section.
Structural Quality Testing
MetalZenith conducts comprehensive testing including welding performance evaluation using standard procedures, forming capability assessment through bend tests, fatigue strength testing under cyclic loading, and atmospheric corrosion resistance evaluation. These specialized tests ensure optimal performance in structural engineering applications.
Application Engineering Considerations
For building frameworks and bridge construction, SK5's high strength-to-weight ratio provides excellent load-bearing capacity. In machinery manufacturing, the superior hardness and wear resistance ensure long service life. For automotive chassis applications, the combination of strength and formability enables complex structural designs. General engineering applications benefit from the material's versatility and reliable mechanical properties.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.80 - 0.90 |
| Manganese (Mn) | 0.30 - 0.50 |
| Silicon (Si) | 0.15 - 0.35 |
| Phosphorus (P) | ≤ 0.030 |
| Sulfur (S) | ≤ 0.030 |
| Chromium (Cr) | ≤ 0.20 |
| Nickel (Ni) | ≤ 0.20 |
| Copper (Cu) | ≤ 0.30 |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Yield Strength (MPa) | ≥ 540 |
| Tensile Strength (MPa) | 850 - 1050 |
| Elongation (%) | ≥ 12 |
| Impact Energy at 20°C (J) | ≥ 15 |
| Hardness (HRC) | 58 - 64 |
| Fatigue Strength (MPa) | 420 - 480 |
🔬 Physical Properties
| Property | Value |
|---|---|
| Density (g/cm3) | 7.84 |
| Melting Point (°C) | 1460 - 1520 |
| Thermal Conductivity (W/m·K) | 43.0 |
| Thermal Expansion (×10??/K) | 11.5 |
| Elastic Modulus (GPa) | 210 |
| Poisson's Ratio | 0.27 - 0.30 |
📏 Product Specifications
| Specification | Details |
|---|---|
| Available Forms | Plates, Sheets, Bars, Rods, Strips, Forgings |
| Thickness Range | 3 - 80mm |
| Width Range | 500 - 2500mm |
| Length Range | 3000 - 12000mm |
| Standards Compliance | JIS G4401, ASTM A684, DIN C85 |
| Heat Treatment Condition | Annealed, Normalized, Quenched & Tempered |
| Surface Finish | Hot Rolled, Cold Drawn, Polished |
Let Us Create Success for Your Project
Professional Team, Premium Products, Complete Service - Your Project Success is Our Mission
Our Advantages in Processing SK5 Steel
Advanced Heat Treatment Processing
MetalZenith utilizes precision-controlled heat treatment cycles with real-time temperature monitoring to achieve optimal hardness and strength in SK5 steel. Our advanced quenching and tempering processes ensure uniform microstructure and enhanced mechanical properties throughout the material cross-section.
Comprehensive Structural Testing
Our SK5 steel undergoes extensive testing including welding performance evaluation, forming capability assessment, fatigue strength analysis, and atmospheric corrosion resistance testing. This comprehensive quality assurance ensures optimal performance in structural applications.
Custom Fabrication Services
MetalZenith provides complete custom processing services including precision cutting, forming, heat treatment, and surface finishing. Our technical support team works closely with clients to optimize SK5 steel specifications for specific structural engineering requirements.
YOUR TRUSTED STEEL
MANUFACTURING PARTNER
Quick Inquiry
Industries We Serve
Professional steel solutions across major industries
Qualifications & Certifications
