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Technical Specifications
Product Overview
Metallurgical Characteristics
NM360 is a low-alloy, high-strength wear-resistant steel produced through controlled quenching and tempering processes. The steel features a tempered martensitic microstructure that provides exceptional hardness and wear resistance while maintaining adequate toughness for demanding applications. The carefully balanced chemical composition ensures optimal hardenability and mechanical properties.
Heat Treatment Process
MetalZenith's NM360 undergoes precision-controlled austenitizing at 900-950°C followed by water quenching to achieve full martensitic transformation. Subsequent tempering at 200-250°C relieves internal stresses while maintaining the target hardness of 360 HBW. This heat treatment cycle is carefully monitored using advanced temperature control systems to ensure consistent properties throughout the plate thickness.
Manufacturing Process
The production process begins with electric arc furnace melting followed by ladle refining and continuous casting. Hot rolling is performed with controlled finishing temperatures to achieve optimal grain structure. The quenching and tempering operations utilize state-of-the-art equipment with precise temperature and time controls to ensure uniform hardness distribution and mechanical properties.
Quality Standards & Testing
Every NM360 plate undergoes comprehensive testing including chemical analysis, hardness testing across multiple locations, tensile testing, impact testing, and ultrasonic inspection. MetalZenith maintains ISO 9001:2015 certification and provides complete material certificates including EN 10204-3.1 documentation. Non-destructive testing ensures internal soundness and surface quality meet the highest industry standards.
🧪 Chemical Composition
| Element | Content (%) |
|---|---|
| Carbon (C) | ≤ 0.25 |
| Manganese (Mn) | 1.00 - 1.60 |
| Silicon (Si) | 0.10 - 0.50 |
| Phosphorus (P) | ≤ 0.025 |
| Sulfur (S) | ≤ 0.010 |
| Chromium (Cr) | 0.20 - 1.50 |
| Nickel (Ni) | ≤ 1.00 |
| Molybdenum (Mo) | ≤ 0.50 |
| Boron (B) | 0.0005 - 0.004 |
| Aluminum (Al) | ≥ 0.015 |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Brinell Hardness (HBW) | 340 - 380 |
| Tensile Strength (Rm) | 1100 - 1300 MPa |
| Yield Strength (Rp0.2) | ≥ 950 MPa |
| Elongation (A5) | ≥ 12% |
| Impact Energy (KV2) at 20°C | ≥ 25 J |
| Impact Energy (KV2) at -20°C | ≥ 20 J |
| Young's Modulus | 210 GPa |
| Fatigue Limit | 450 MPa |
| Reduction of Area | ≥ 35% |
🔬 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 |
| Poisson's Ratio | 0.27 - 0.30 |
📏 Product Specifications
| Specification | Details |
|---|---|
| Available Forms | Plates, Sheets, Cut-to-size pieces |
| Thickness Range | 6 - 80 mm |
| Width Range | 1500 - 3000 mm |
| Length Range | 3000 - 12000 mm |
| Surface Finish | Hot rolled, Shot blasted, Pickled |
| Edge Condition | Mill edge, Flame cut, Machined |
| Dimensional Tolerance | Thickness: ±0.3mm, Width: ±5mm |
| Flatness Tolerance | ≤ 5mm/m |
| Standards Compliance | EN 10204-3.1, ASTM A514, JIS G3128 |
| Delivery Condition | Quenched and Tempered (Q+T) |
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Our Advantages in Processing NM360
Advanced Heat Treatment Technology
MetalZenith employs state-of-the-art quenching and tempering facilities with precise temperature control systems to achieve consistent 360 HBW hardness throughout the steel plate thickness, ensuring optimal wear resistance and mechanical properties.
Comprehensive Quality Control System
Our integrated quality management system includes advanced testing equipment for hardness verification, impact testing, chemical analysis, and dimensional inspection, ensuring every NM360 plate meets strict international standards and customer specifications.
Custom Processing & Global Supply
MetalZenith offers complete customization services including precision cutting, machining, and surface treatment, supported by our global distribution network and logistics capabilities for reliable worldwide delivery with full material traceability.
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