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Technical Specifications
Product Overview
Metallurgical Characteristics
EN S960QL is a fine-grained structural steel produced through controlled rolling followed by quenching and tempering heat treatment. The steel features a tempered martensitic microstructure with fine carbide precipitates, providing exceptional strength while maintaining good toughness and weldability. The low carbon equivalent (CEV ≤ 0.65%) ensures excellent weldability without preheating in most applications.
Heat Treatment Process
MetalZenith employs a precisely controlled quenching and tempering process. The steel is austenitized at 900-950°C, followed by water quenching to achieve a martensitic structure. Subsequent tempering at 580-650°C develops the final mechanical properties while relieving internal stresses. Our computer-controlled furnaces ensure uniform heating and cooling rates throughout the material cross-section.
Manufacturing Process
Production begins with electric arc furnace melting followed by ladle refining and vacuum degassing to achieve ultra-low sulfur and phosphorus contents. Continuous casting produces high-quality billets which undergo controlled rolling in our state-of-the-art rolling mills. The thermomechanical controlled processing (TMCP) refines the grain structure and optimizes mechanical properties.
Quality Standards & Certifications
All EN S960QL products are manufactured in accordance with EN 10025-6 standard and undergo comprehensive testing including chemical analysis, tensile testing, impact testing, and hardness verification. MetalZenith maintains ISO 9001:2015, ISO 14001:2015, and OHSAS 18001 certifications. Each delivery includes complete mill test certificates with full traceability documentation and compliance with CE marking requirements.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | ≤ 0.20 |
| Manganese (Mn) | ≤ 1.70 |
| Silicon (Si) | ≤ 0.80 |
| Phosphorus (P) | ≤ 0.020 |
| Sulfur (S) | ≤ 0.010 |
| Chromium (Cr) | ≤ 1.50 |
| Nickel (Ni) | ≤ 2.00 |
| Molybdenum (Mo) | ≤ 0.70 |
| Vanadium (V) | ≤ 0.12 |
| Niobium (Nb) | ≤ 0.06 |
| Titanium (Ti) | ≤ 0.05 |
| Boron (B) | ≤ 0.005 |
| Aluminum (Al) | ≥ 0.015 |
| Copper (Cu) | ≤ 0.50 |
⚙️ Mechanical Properties
| Property | Value | Test Standard |
|---|---|---|
| Yield Strength (ReH) | ≥ 960 MPa | EN ISO 6892-1 |
| Tensile Strength (Rm) | 980-1150 MPa | EN ISO 6892-1 |
| Elongation (A5) | ≥ 10% | EN ISO 6892-1 |
| Impact Energy (KV) at -40°C | ≥ 30 J | EN ISO 148-1 |
| Brinell Hardness (HBW) | 300-380 | EN ISO 6506-1 |
| Young's Modulus | 210 GPa | EN ISO 6892-1 |
| Poisson's Ratio | 0.30 | ASTM E132 |
| Fatigue Limit (2×106 cycles) | 480 MPa | EN 6072 |
| Reduction of Area (Z) | ≥ 35% | EN ISO 6892-1 |
🔬 Physical Properties
| Property | Value | Temperature Range |
|---|---|---|
| Density | 7.85 g/cm³ | 20°C |
| Melting Point | 1510°C | - |
| Thermal Conductivity | 54 W/m·K | 20°C |
| Specific Heat Capacity | 500 J/kg·K | 20°C |
| Thermal Expansion Coefficient | 12×10-6/K | 20-100°C |
| Electrical Resistivity | 0.16 µΩ·m | 20°C |
| Magnetic Permeability | Ferromagnetic | 20°C |
| Curie Temperature | 770°C | - |
| Thermal Diffusivity | 13.7 mm²/s | 20°C |
📏 Product Specifications
| Specification | Available Options | Standards |
|---|---|---|
| Product Forms | Plates, Sheets, Bars, Profiles, Tubes | EN 10025-6 |
| Plate Thickness | 3-100 mm | EN 10029 |
| Sheet Thickness | 0.5-3 mm | EN 10131 |
| Bar Diameter | 10-300 mm | EN 10060 |
| Width Range | 600-3200 mm | EN 10025-6 |
| Length Range | 2000-18000 mm | Customer Specified |
| Surface Finish | Hot Rolled, Pickled, Shot Blasted | EN 10163 |
| Dimensional Tolerance | Class A, B, C | EN 10029 |
| Edge Condition | Mill Edge, Cut Edge, Slit Edge | EN 10025-6 |
| Heat Treatment | Quenched and Tempered (Q+T) | EN 10025-6 |
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Our Advantages in Processing EN S960QL
Advanced Quenching & Tempering Technology
MetalZenith employs precision-controlled quenching and tempering processes with automated temperature monitoring systems, ensuring consistent mechanical properties and optimal grain structure throughout the entire steel section thickness.
Comprehensive Quality Control Laboratory
Our state-of-the-art testing facility features advanced optical emission spectrometers, universal testing machines, and Charpy impact testers, providing complete chemical and mechanical property verification for every production batch.
Custom Processing & Global Supply Chain
MetalZenith offers extensive customization including precision cutting, machining, and surface treatments, backed by our global distribution network ensuring reliable delivery to customers worldwide with full traceability documentation.
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