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Technical Specifications
Product Overview
Metallurgical Characteristics
XAR400 is a low-alloy, high-strength wear resistant steel produced through controlled rolling and quenching & tempering processes. The steel exhibits a predominantly martensitic microstructure with fine carbide precipitates, providing exceptional wear resistance while maintaining good toughness and weldability. The optimized chemical composition ensures excellent hardenability and uniform hardness distribution throughout the plate thickness.
Heat Treatment Process
MetalZenith's XAR400 undergoes precision-controlled austenitizing at 880-920°C followed by water quenching to achieve the desired martensitic structure. Subsequent tempering at 150-250°C optimizes the balance between hardness and toughness. Our advanced heat treatment facilities ensure uniform temperature distribution and controlled cooling rates for consistent mechanical properties.
Manufacturing Process
The production process begins with electric arc furnace melting followed by ladle refining and vacuum degassing to achieve optimal cleanliness. Continuous casting produces high-quality slabs which undergo controlled rolling to achieve the required dimensions and microstructure. Advanced process control systems monitor temperature, rolling parameters, and cooling rates throughout production.
Quality Standards & Testing
All XAR400 products comply with international standards including EN 10204-3.1 certification. Comprehensive testing includes chemical analysis by optical emission spectroscopy, mechanical property verification through tensile and impact testing, hardness mapping across plate surfaces, and ultrasonic testing for internal soundness. MetalZenith maintains full traceability from raw materials to finished products.
Welding & Fabrication
XAR400 exhibits good weldability using appropriate preheating (150-200°C) and low-hydrogen electrodes. Post-weld stress relief may be required for thick sections or complex geometries. MetalZenith provides comprehensive welding guidelines and technical support for fabrication processes to ensure optimal performance in service applications.
🧪 Chemical Composition
Element | Composition (%) |
---|---|
Carbon (C) | ≤ 0.32 |
Silicon (Si) | ≤ 0.70 |
Manganese (Mn) | ≤ 1.60 |
Phosphorus (P) | ≤ 0.025 |
Sulfur (S) | ≤ 0.010 |
Chromium (Cr) | 0.25 - 1.50 |
Nickel (Ni) | ≤ 1.50 |
Molybdenum (Mo) | ≤ 0.60 |
Boron (B) | ≤ 0.005 |
Titanium (Ti) | ≤ 0.15 |
⚙️ Mechanical Properties
Property | Value |
---|---|
Hardness (HBW) | 370 - 430 |
Tensile Strength (Rm) | 1180 - 1520 MPa |
Yield Strength (Rp0.2) | ≥ 1000 MPa |
Elongation (A5) | ≥ 10% |
Impact Energy (-40°C) | ≥ 30 J |
Impact Energy (-20°C) | ≥ 45 J |
Fatigue Limit | 420 MPa |
Young's Modulus | 210 GPa |
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) | 12.5×10-6/K |
Specific Heat Capacity | 460 J/kg·K |
Electrical Resistivity | 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 |
Standards | EN 10204-3.1, ASTM A514, JIS G3128 |
Surface Finish | Hot rolled, Shot blasted, Pickled |
Thickness Tolerance | ± 0.3 mm (t ≤ 20mm), ± 0.5 mm (t > 20mm) |
Width Tolerance | ± 5 mm |
Length Tolerance | ± 10 mm |
Flatness | ≤ 5 mm/m |
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Our Advantages in Processing XAR400

Advanced Heat Treatment Technology
MetalZenith employs state-of-the-art quenching and tempering facilities with precise temperature control systems to achieve optimal hardness distribution and mechanical properties in XAR400 steel, ensuring consistent quality across all plate thicknesses.
Comprehensive Quality Control System
Our integrated quality management system includes advanced testing equipment for chemical analysis, mechanical property verification, ultrasonic testing, and dimensional inspection, guaranteeing that every XAR400 plate meets stringent international standards.


Custom Processing & Global Supply
MetalZenith offers extensive customization services including precision cutting, machining, and surface treatment for XAR400 steel, supported by our global distribution network ensuring timely delivery worldwide with comprehensive technical support.
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