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
S390 exhibits a complex microstructure featuring fine, uniformly distributed primary and secondary carbides within a martensitic matrix. The powder metallurgy processing eliminates segregation and ensures homogeneous carbide distribution, resulting in exceptional wear resistance and dimensional stability. The high vanadium and tungsten content provides superior hot hardness retention and thermal stability.
Heat Treatment Process
MetalZenith employs controlled vacuum hardening at 1160-1180°C followed by multiple tempering cycles at 540-560°C. Our proprietary cryogenic treatment at -196°C enhances carbide precipitation and maximizes hardness. The precise temperature control and atmosphere management ensure optimal transformation kinetics and minimize distortion.
Manufacturing Excellence
MetalZenith's advanced powder metallurgy facility utilizes hot isostatic pressing (HIP) and controlled atmosphere sintering to achieve near-theoretical density and eliminate porosity. Our quality systems include real-time monitoring of particle size distribution, chemical composition verification, and comprehensive mechanical testing throughout the production cycle.
Specialized Quality Testing
Our comprehensive testing protocol includes formability assessment through bend testing and deep drawing simulation, weldability evaluation using controlled thermal severity tests, hydrogen-induced cracking resistance testing per NACE standards, and delayed fracture analysis under sustained loading conditions. These specialized tests ensure S390 steel meets the stringent requirements of high-strength applications.
Application Engineering Considerations
For automotive manufacturing, S390 provides exceptional tool life in stamping operations while maintaining dimensional precision. In building and bridge construction, its high fatigue strength ensures long-term structural integrity under cyclic loading. For lifting equipment applications, the superior impact toughness and wear resistance minimize maintenance requirements. In pressure vessel manufacturing, the material's resistance to hydrogen embrittlement and stress corrosion cracking ensures safe operation under extreme conditions.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | 1.64 |
| Chromium (Cr) | 4.80 |
| Molybdenum (Mo) | 2.00 |
| Tungsten (W) | 10.40 |
| Vanadium (V) | 9.80 |
| Cobalt (Co) | 10.50 |
| Silicon (Si) | 0.90 |
| Manganese (Mn) | 0.30 |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Yield Strength (MPa) | ≥ 2800 |
| Tensile Strength (MPa) | 3200 - 3600 |
| Elongation (%) | 8 - 12 |
| Impact Toughness (J) | ≥ 25 |
| Fatigue Strength (MPa) | 1400 - 1600 |
| Hardness (HRC) | 66 - 68 |
🔬 Physical Properties
| Property | Value |
|---|---|
| Density (g/cm3) | 8.67 |
| Melting Point (°C) | 1350 - 1380 |
| Thermal Conductivity (W/m·K) | 24.5 |
| Thermal Expansion (×10??/K) | 10.8 |
| Elastic Modulus (GPa) | 230 |
| Poisson's Ratio | 0.27 |
📏 Product Specifications
| Specification | Details |
|---|---|
| Available Forms | Bars, Blocks, Plates, Custom Forgings |
| Diameter Range | 10 - 500mm |
| Thickness Range | 5 - 200mm |
| Length Range | 100 - 6000mm |
| Standards Compliance | ASTM A600, DIN 1.3243, JIS SKH51 |
| Heat Treatment Condition | Annealed, Hardened & Tempered |
| Surface Finish | Ground, Polished, As-Rolled |
Let Us Create Success for Your Project
Professional Team, Premium Products, Complete Service - Your Project Success is Our Mission
Our Advantages in Processing S390 Steel (Bohler HSS)
Advanced Powder Metallurgy Processing
MetalZenith employs cutting-edge powder metallurgy technology with controlled atmosphere sintering and hot isostatic pressing to achieve superior microstructural homogeneity. Our precision processing ensures optimal carbide distribution and enhanced mechanical properties throughout the material cross-section.
Comprehensive High-Strength Testing
MetalZenith conducts specialized testing protocols including formability assessment, weldability evaluation, hydrogen-induced cracking resistance, and delayed fracture analysis. Our advanced testing ensures S390 steel meets the demanding requirements of high-strength applications in automotive and structural engineering.
Custom Heat Treatment Solutions
MetalZenith provides tailored heat treatment services including vacuum hardening, tempering, and cryogenic processing to optimize S390 steel properties for specific applications. Our technical support team works closely with customers to develop custom processing solutions for unique high-strength requirements.
YOUR TRUSTED STEEL
MANUFACTURING PARTNER
Quick Inquiry
Industries We Serve
Professional steel solutions across major industries
Qualifications & Certifications
