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Technical Specifications
Product Overview
Metallurgical Characteristics
K340 exhibits a martensitic microstructure with uniformly distributed chromium and vanadium carbides after proper heat treatment. The high carbon content combined with chromium provides excellent wear resistance, while vanadium additions enhance grain refinement and secondary hardening response. This microstructural design ensures optimal performance in structural applications requiring high strength and durability.
Heat Treatment Process
MetalZenith employs controlled austenitizing at 1000-1020°C followed by oil or air quenching, then tempering at 150-200°C for structural applications. Our precise temperature control and atmosphere protection prevent decarburization and ensure uniform hardness distribution throughout the cross-section.
Manufacturing Process
Our K340 production utilizes vacuum induction melting followed by electroslag remelting (ESR) to achieve exceptional cleanliness and homogeneity. Controlled forging and rolling processes optimize grain flow and eliminate internal defects, while our proprietary heat treatment cycles maximize structural performance characteristics.
Specialized Quality Testing
MetalZenith conducts comprehensive testing protocols including welding performance evaluation using standard AWS procedures, forming capability assessment through bend and impact tests, fatigue strength testing under cyclic loading conditions, and atmospheric corrosion resistance testing in simulated environmental conditions to ensure long-term structural integrity.
Application Engineering Considerations
For building construction applications, K340 provides exceptional load-bearing capacity and seismic resistance. In bridge engineering, its fatigue resistance ensures long service life under dynamic loading. For machinery manufacturing, the combination of strength and machinability enables complex structural components. In vehicle manufacturing, K340 offers weight reduction potential while maintaining safety margins, and for general engineering applications, its versatility allows for diverse structural solutions with consistent performance.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | 1.50 - 1.60 |
| Chromium (Cr) | 11.0 - 13.0 |
| Vanadium (V) | 0.50 - 0.80 |
| Molybdenum (Mo) | 0.70 - 1.00 |
| Silicon (Si) | 0.20 - 0.50 |
| Manganese (Mn) | 0.20 - 0.50 |
| Phosphorus (P) | ≤ 0.030 |
| Sulfur (S) | ≤ 0.030 |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Yield Strength (MPa) | ≥ 1800 |
| Tensile Strength (MPa) | 2100 - 2400 |
| Elongation (%) | ≥ 8 |
| Impact Energy at 20°C (J) | ≥ 15 |
| Hardness (HRC) | 58 - 62 |
| Fatigue Strength (MPa) | ≥ 900 |
🔬 Physical Properties
| Property | Value |
|---|---|
| Density (g/cm3) | 7.70 |
| Melting Point (°C) | 1420 - 1460 |
| Thermal Conductivity (W/m·K) | 20.5 |
| Thermal Expansion (×10??/K) | 10.8 |
| Elastic Modulus (GPa) | 210 |
| Poisson's Ratio | 0.27 - 0.30 |
📏 Product Specifications
| Specification | Details |
|---|---|
| Available Forms | Plates, Bars, Blocks, Forgings, Custom Shapes |
| Thickness Range | 10 - 300mm |
| Width Range | 100 - 2000mm |
| Length Range | 500 - 6000mm |
| Standards Compliance | AISI D2, DIN 1.2379, JIS SKD11 |
| Heat Treatment Condition | Annealed, Hardened & Tempered |
| Surface Finish | Hot Rolled, Cold Drawn, Machined |
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Our Advantages in Processing K340 Steel
Advanced Vacuum Melting Technology
MetalZenith utilizes cutting-edge vacuum induction melting followed by controlled forging processes to achieve exceptional cleanliness and homogeneity in K340 steel. Our precise temperature control and optimized cooling rates ensure uniform carbide distribution and superior mechanical properties throughout the material cross-section.
Comprehensive Structural Performance Testing
Our K340 steel undergoes extensive testing protocols specifically designed for structural applications, including welding performance evaluation, forming capability assessment, fatigue strength testing, and atmospheric corrosion resistance analysis. This ensures optimal performance in demanding construction and engineering environments.
Custom Structural Solutions
MetalZenith provides tailored K340 steel solutions with custom heat treatment, precision machining, and specialized forming services. Our technical team works closely with clients to optimize material properties for specific structural applications, ensuring maximum performance and cost-effectiveness.
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