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Technical Specifications
Product Overview
Metallurgical Characteristics
EN 13CrMo4-5 is a low-alloy chrome-molybdenum steel with a ferritic-pearlitic microstructure optimized for high-temperature pressure vessel applications. The chromium content provides oxidation resistance and hardenability, while molybdenum enhances creep strength and thermal stability. The controlled carbon content ensures excellent weldability without preheating requirements for most applications.
Heat Treatment Process
MetalZenith's EN 13CrMo4-5 undergoes precision heat treatment consisting of normalizing at 920-960°C followed by tempering at 680-720°C. This thermal processing develops optimal mechanical properties and stress relief while maintaining fine grain structure. Our computer-controlled furnaces ensure uniform heating and cooling rates, resulting in consistent microstructure and mechanical properties throughout the material cross-section.
Manufacturing Excellence
Our advanced steelmaking process begins with electric arc furnace melting using premium raw materials, followed by ladle refining and vacuum degassing to achieve ultra-low inclusion content. Continuous casting and controlled rolling ensure excellent surface quality and dimensional accuracy. Post-rolling heat treatment in protective atmosphere furnaces prevents decarburization and surface oxidation.
Quality Standards & Compliance
All EN 13CrMo4-5 products manufactured by MetalZenith comply with international standards including EN 10028-2, ASTM A387 Grade 11, and PED 2014/68/EU requirements. Our quality management system encompasses complete chemical analysis, mechanical property testing, ultrasonic inspection, and microstructural examination. Full traceability documentation and material certificates are provided with every shipment, ensuring compliance with pressure equipment regulations and customer specifications.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.08 - 0.18 |
| Silicon (Si) | 0.15 - 0.50 |
| Manganese (Mn) | 0.40 - 0.80 |
| Phosphorus (P) | ≤ 0.025 |
| Sulfur (S) | ≤ 0.015 |
| Chromium (Cr) | 0.70 - 1.15 |
| Molybdenum (Mo) | 0.45 - 0.65 |
| Nickel (Ni) | ≤ 0.30 |
| Aluminum (Al) | ≥ 0.020 |
| Copper (Cu) | ≤ 0.30 |
| Vanadium (V) | ≤ 0.02 |
| Niobium (Nb) | ≤ 0.02 |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength (Rm) | 440 - 590 MPa |
| Yield Strength (Rp0.2) | ≥ 275 MPa |
| Elongation (A5) | ≥ 22% |
| Reduction of Area (Z) | ≥ 50% |
| Brinell Hardness (HB) | 130 - 180 HB |
| Impact Energy (KV) at 20°C | ≥ 40 J |
| Impact Energy (KV) at 0°C | ≥ 27 J |
| Young's Modulus (E) | 210 GPa |
| Poisson's Ratio (ν) | 0.30 |
| Fatigue Limit (107 cycles) | 200 MPa |
| Creep Rupture Strength (100,000h at 500°C) | 120 MPa |
| Creep Rupture Strength (100,000h at 530°C) | 90 MPa |
🔬 Physical Properties
| Property | Value |
|---|---|
| Density | 7.85 g/cm³ |
| Melting Point | 1480 - 1520°C |
| Thermal Conductivity (20°C) | 42 W/m·K |
| Thermal Conductivity (500°C) | 35 W/m·K |
| Thermal Expansion Coefficient (20-100°C) | 11.5×10-6/K |
| Thermal Expansion Coefficient (20-500°C) | 12.8×10-6/K |
| Specific Heat Capacity (20°C) | 460 J/kg·K |
| Specific Heat Capacity (500°C) | 580 J/kg·K |
| Electrical Resistivity (20°C) | 0.25 µΩ·m |
| Magnetic Permeability | Ferromagnetic |
| Curie Temperature | 770°C |
| Thermal Diffusivity (20°C) | 11.6×10-6 m²/s |
📏 Product Specifications
| Specification | Available Options |
|---|---|
| Product Forms | Plates, Sheets, Bars, Forgings, Tubes, Pipes |
| Plate Thickness | 6 - 250 mm |
| Sheet Thickness | 0.5 - 6 mm |
| Bar Diameter | 10 - 500 mm |
| Tube Outer Diameter | 10 - 610 mm |
| Maximum Dimensions | 3000 × 12000 mm (plates) |
| Standards Compliance | EN 10028-2, ASTM A387 Gr.11, JIS G3118, GB 713 |
| Heat Treatment Condition | Normalized and Tempered (+NT) |
| Surface Finish | Hot Rolled, Pickled, Shot Blasted, Machined |
| Dimensional Tolerance | ±0.5mm (thickness), ±5mm (width/length) |
| Edge Condition | Mill Edge, Sheared, Flame Cut, Machined |
| Testing Requirements | EN 10204 3.1/3.2, NACE MR0175, PED 2014/68/EU |
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Our Advantages in Processing EN 13CrMo4-5
Advanced Metallurgical Processing
MetalZenith utilizes cutting-edge electric arc furnace technology combined with ladle refining and vacuum degassing to achieve superior chemical homogeneity and reduced inclusion content in EN 13CrMo4-5, ensuring exceptional mechanical properties and enhanced service life in high-temperature applications.
Comprehensive Quality Control System
Our state-of-the-art testing laboratory performs complete chemical analysis, mechanical property testing, ultrasonic inspection, and microstructural examination on every heat of EN 13CrMo4-5, guaranteeing compliance with international standards and providing full traceability documentation for critical applications.
Custom Solutions & Global Supply
MetalZenith offers extensive customization capabilities including precision cutting, heat treatment optimization, and surface finishing for EN 13CrMo4-5, supported by our global logistics network ensuring timely delivery and technical support worldwide for pressure vessel manufacturers and engineering contractors.
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