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Technical Specifications
Product Overview
Metallurgical Characteristics
EN 10CrMo9-10 is a low-alloy chromium-molybdenum steel with a ferritic-pearlitic microstructure optimized for high-temperature pressure vessel applications. The chromium content (2.0-2.5%) provides oxidation resistance and enhances hardenability, while molybdenum (0.9-1.1%) significantly improves creep resistance and high-temperature strength through solid solution strengthening and carbide formation.
Heat Treatment Process
MetalZenith employs a controlled normalization process at 920-960°C followed by tempering at 680-720°C to achieve optimal mechanical properties. This heat treatment cycle refines the grain structure, promotes uniform carbide distribution, and develops the required balance of strength, toughness, and creep resistance. Our computer-controlled furnaces ensure precise temperature uniformity within ±5°C.
Manufacturing Process
Production begins with electric arc furnace melting using premium scrap and alloy additions, followed by ladle refining and vacuum degassing to achieve ultra-low sulfur and phosphorus levels. Continuous casting produces high-quality billets with minimal segregation. Controlled rolling at temperatures between 1050-1200°C ensures proper grain refinement and mechanical property development.
Quality Standards & Testing
All EN 10CrMo9-10 products undergo comprehensive testing per EN 10028-2 requirements including chemical analysis by optical emission spectroscopy, tensile testing, Charpy V-notch impact testing, and hardness verification. Ultrasonic testing per EN 10160 Class S2/E3 ensures internal soundness. Creep rupture testing validates long-term high-temperature performance. Complete material certificates per EN 10204 Type 3.1 are provided with full traceability documentation.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.08 - 0.14 |
| Silicon (Si) | 0.15 - 0.50 |
| Manganese (Mn) | 0.40 - 0.80 |
| Phosphorus (P) | ≤ 0.025 |
| Sulfur (S) | ≤ 0.015 |
| Chromium (Cr) | 2.00 - 2.50 |
| Molybdenum (Mo) | 0.90 - 1.10 |
| Nickel (Ni) | ≤ 0.30 |
| Aluminum (Al) | ≥ 0.020 |
| Copper (Cu) | ≤ 0.20 |
| Vanadium (V) | ≤ 0.02 |
| Niobium (Nb) | ≤ 0.02 |
⚙️ Mechanical Properties
| Property | Value | Test Condition |
|---|---|---|
| Tensile Strength (Rm) | 480 - 630 MPa | Room Temperature |
| Yield Strength (Rp0.2) | ≥ 280 MPa | Room Temperature |
| Elongation (A5) | ≥ 22% | Room Temperature |
| Impact Energy (KV) | ≥ 40 J | 20°C |
| Hardness (HB) | 140 - 190 | Normalized + Tempered |
| Young's Modulus | 210 GPa | 20°C |
| Creep Rupture Strength | 120 MPa | 500°C, 100,000h |
| Fatigue Limit | 240 MPa | 10&sup7; cycles |
| Poisson's Ratio | 0.30 | Elastic Range |
🔬 Physical Properties
| Property | Value | Temperature |
|---|---|---|
| Density | 7.85 g/cm³ | 20°C |
| Melting Point | 1480 - 1520°C | - |
| Thermal Conductivity | 42 W/m·K | 20°C |
| Thermal Conductivity | 35 W/m·K | 500°C |
| Thermal Expansion Coefficient | 11.5×10-6/K | 20-100°C |
| Thermal Expansion Coefficient | 13.2×10-6/K | 20-500°C |
| Specific Heat Capacity | 460 J/kg·K | 20°C |
| Electrical Resistivity | 0.28 µΩ·m | 20°C |
| Magnetic Permeability | Ferromagnetic | 20°C |
📏 Product Specifications
| Specification | Available Options |
|---|---|
| Product Forms | Plates, Sheets, Bars, Forgings, Tubes, Pipes |
| Plate Thickness | 6 - 300 mm |
| Sheet Thickness | 0.5 - 6 mm |
| Bar Diameter | 10 - 500 mm |
| Tube Outer Diameter | 10 - 1000 mm |
| Maximum Dimensions | 6000 × 2500 mm (Plates) |
| Standards | EN 10028-2, ASTM A387 Gr.11, JIS G3103 SBV2 |
| Heat Treatment | Normalized + Tempered, Quenched + Tempered |
| Surface Finish | Hot Rolled, Pickled, Ground, Machined |
| Dimensional Tolerance | ±0.1 mm (Thickness), ±2 mm (Width/Length) |
| Flatness Tolerance | ≤ 5 mm/m |
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Our Advantages in Processing EN 10CrMo9-10
Advanced Vacuum Melting Technology
MetalZenith employs cutting-edge vacuum induction melting and electroslag remelting processes to achieve ultra-low inclusion content and superior chemical homogeneity in EN 10CrMo9-10 production, ensuring exceptional mechanical properties and reliability.
Comprehensive Quality Control System
Our integrated quality management system features real-time process monitoring, automated chemical analysis, and advanced non-destructive testing capabilities including ultrasonic inspection and magnetic particle testing for guaranteed material integrity.
Custom Processing & Global Supply
MetalZenith offers complete customization services including precision machining, heat treatment optimization, and specialized surface treatments, backed by our global logistics network ensuring timely delivery to any location worldwide.
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