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Technical Specifications
Product Overview
Metallurgical Characteristics
DILLIDUR 500V is a low-alloy, high-strength quenched and tempered steel featuring a fine-grained martensitic microstructure. The carefully balanced chemical composition with controlled carbon content and strategic alloying elements (Cr, Ni, Mo, B) ensures optimal hardenability and toughness. The boron addition enhances hardenability while maintaining weldability characteristics.
Heat Treatment Process
MetalZenith's manufacturing process involves controlled rolling at temperatures between 1100-1200°C, followed by accelerated cooling (quenching) from 900-950°C to achieve the martensitic structure. Subsequent tempering at 200-300°C optimizes the balance between hardness and toughness. The entire process is monitored using advanced pyrometry and computerized control systems.
Manufacturing Quality Control
Each production batch undergoes comprehensive testing including spectroscopic chemical analysis, tensile testing, Charpy impact testing at various temperatures, and Brinell hardness measurement across multiple locations. Ultrasonic testing ensures internal soundness, while dimensional inspection verifies geometric tolerances. All testing is performed in our NADCAP-accredited laboratories.
Welding and Fabrication Guidelines
DILLIDUR 500V exhibits good weldability when proper procedures are followed. Preheating to 100-150°C is recommended for thicknesses above 20mm. Low-hydrogen electrodes (E7018 or equivalent) should be used with interpass temperatures not exceeding 250°C. Post-weld stress relief may be required for critical applications.
Quality Standards and Certifications
MetalZenith maintains ISO 9001:2015, ISO 14001:2015, and OHSAS 18001 certifications. Our production facilities are approved by major classification societies including Lloyd's Register, DNV GL, and ABS. All products are supplied with EN 10204-3.1 mill test certificates and full material traceability documentation.
🧪 Chemical Composition
| Element | Content (%) |
|---|---|
| Carbon (C) | ≤ 0.26 |
| Manganese (Mn) | 1.60 |
| Silicon (Si) | 0.70 |
| Phosphorus (P) | ≤ 0.025 |
| Sulfur (S) | ≤ 0.010 |
| Chromium (Cr) | 1.40 |
| Nickel (Ni) | 1.00 |
| Molybdenum (Mo) | 0.60 |
| Boron (B) | 0.005 |
| Aluminum (Al) | ≥ 0.015 |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Hardness (HBW) | 500 ± 30 |
| Tensile Strength (Rm) | 1550-1750 MPa |
| Yield Strength (Rp0.2) | ≥ 1300 MPa |
| Elongation (A5) | ≥ 8% |
| Impact Energy (KV) at -40°C | ≥ 30 J |
| Impact Energy (KV) at -60°C | ≥ 20 J |
| Young's Modulus | 210 GPa |
| Fatigue Limit | 550 MPa |
| Poisson's Ratio | 0.30 |
🔬 Physical Properties
| Property | Value |
|---|---|
| Density | 7.85 g/cm³ |
| Melting Point | 1450-1520°C |
| Thermal Conductivity (20°C) | 42 W/m·K |
| Thermal Expansion Coefficient (20-100°C) | 12×10-6/K |
| Specific Heat Capacity | 460 J/kg·K |
| Electrical Resistivity (20°C) | 0.20 µΩ·m |
| Magnetic Permeability | Ferromagnetic |
| Curie Temperature | 770°C |
📏 Product Specifications
| Specification | Details |
|---|---|
| Available Forms | Plates, Sheets, Cut-to-size pieces |
| Thickness Range | 4-80 mm |
| Width Range | 1000-3200 mm |
| Length Range | 2000-12000 mm |
| Surface Finish | Hot rolled, Shot blasted, Pickled |
| Edge Condition | Mill edge, Flame cut, Plasma cut |
| Thickness Tolerance | ± 0.3 mm (t ≤ 20mm), ± 0.5 mm (t > 20mm) |
| Width Tolerance | +0/-5 mm |
| Length Tolerance | +10/-0 mm |
| Standards Compliance | EN 10204-3.1, ASTM A514, JIS G3128 |
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Our Advantages in Processing DILLIDUR 500V
Advanced Quenching & Tempering Technology
MetalZenith employs cutting-edge quenching and tempering systems with computerized temperature control and uniform cooling technology, ensuring consistent hardness distribution and optimal microstructure throughout the entire plate thickness for superior wear resistance performance.
Comprehensive Quality Control System
Our integrated quality management system includes real-time chemical composition monitoring, automated mechanical testing, ultrasonic inspection, and dimensional verification. Every plate undergoes rigorous testing with full traceability and mill test certification to guarantee consistent quality.
Custom Processing & Global Supply Chain
MetalZenith offers extensive customization capabilities including precision cutting, machining, forming, and surface treatment services. Our global distribution network ensures reliable delivery worldwide with flexible logistics solutions and technical support for specific application requirements.
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