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We have 20 years of industry experience, have partnered with over 1,000 brands, and support any customization needs.
Technical Specifications
Product Overview
Metallurgical Characteristics
NS142 exhibits a stable austenitic microstructure with excellent resistance to oxidation, carburization, and sulfidation at elevated temperatures. The balanced nickel-chromium composition provides superior high-temperature strength retention while maintaining excellent ductility and toughness. The controlled aluminum and titanium additions enhance oxidation resistance and provide precipitation strengthening through gamma-prime formation.
Heat Treatment Processes
MetalZenith's proprietary heat treatment involves solution annealing at 1010-1120°C followed by rapid cooling to achieve optimal mechanical properties. Our controlled atmosphere furnaces ensure uniform heating and prevent surface oxidation. Post-heat treatment includes stress relieving at 870-900°C for enhanced dimensional stability in high-temperature service applications.
Manufacturing Process Excellence
Our advanced manufacturing process begins with vacuum induction melting using premium raw materials, followed by electroslag remelting for enhanced cleanliness. Hot working operations are performed within precise temperature ranges (1050-1200°C) to achieve optimal grain structure. Cold working capabilities include precision drawing, rolling, and forming with intermediate annealing cycles to maintain material properties.
Quality Standards & Testing
MetalZenith maintains compliance with international standards including ASTM B409, ASME SB-409, and EN 1.4876. Comprehensive testing protocols include chemical analysis via optical emission spectroscopy, mechanical testing per ASTM standards, ultrasonic examination for internal soundness, and metallographic evaluation for microstructural verification. All products are supplied with certified test reports and full material traceability documentation.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | ≤ 0.10 |
| Manganese (Mn) | ≤ 1.50 |
| Silicon (Si) | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 |
| Chromium (Cr) | 19.0 - 23.0 |
| Nickel (Ni) | 30.0 - 35.0 |
| Aluminum (Al) | 0.15 - 0.60 |
| Titanium (Ti) | 0.15 - 0.60 |
| Copper (Cu) | ≤ 0.75 |
| Iron (Fe) | Balance |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength (Room Temperature) | ≥ 515 MPa |
| Yield Strength (0.2% Offset) | ≥ 205 MPa |
| Elongation in 50mm | ≥ 30% |
| Reduction of Area | ≥ 50% |
| Hardness (Brinell) | ≤ 187 HB |
| Impact Energy (Charpy V-notch) | ≥ 120 J |
| Fatigue Strength (107 cycles) | 240 MPa |
| Creep Rupture Strength (760°C, 1000h) | 35 MPa |
| Young's Modulus | 200 GPa |
| Shear Modulus | 81 GPa |
🔬 Physical Properties
| Property | Value |
|---|---|
| Density | 7.95 g/cm³ |
| Melting Point | 1357-1385°C |
| Thermal Conductivity (100°C) | 11.5 W/m·K |
| Thermal Conductivity (500°C) | 21.4 W/m·K |
| Thermal Expansion (20-100°C) | 14.4×10-6/K |
| Thermal Expansion (20-500°C) | 16.8×10-6/K |
| Specific Heat Capacity | 460 J/kg·K |
| Electrical Resistivity (20°C) | 0.99 µΩ·m |
| Magnetic Permeability | 1.008 (Non-magnetic) |
| Curie Temperature | -101°C |
📏 Product Specifications
| Specification | Available Options |
|---|---|
| Product Forms | Round Bar, Square Bar, Flat Bar, Plate, Sheet, Strip, Tube, Pipe, Wire, Forging |
| Round Bar Diameter | 6mm - 300mm |
| Plate Thickness | 3mm - 100mm |
| Sheet Thickness | 0.5mm - 6mm |
| Tube Outer Diameter | 6mm - 219mm |
| Standards Compliance | ASTM B409, ASME SB-409, EN 1.4876, JIS NW 0800, GB/T 14992 |
| Surface Finish | Hot Rolled, Cold Drawn, Bright Annealed, Pickled, Ground, Polished |
| Dimensional Tolerance | ±0.1mm to ±0.5mm (depending on form and size) |
| Length Options | Standard: 3m, 6m, 12m | Custom lengths available |
| Condition | Solution Annealed, Hot Worked, Cold Worked |
Let Us Create Success for Your Project
Professional Team, Premium Products, Complete Service - Your Project Success is Our Mission
Our Advantages in Processing NS142
Advanced Vacuum Melting Technology
MetalZenith employs cutting-edge vacuum induction melting (VIM) and electroslag remelting (ESR) processes to achieve exceptional chemical homogeneity and purity in NS142 production. Our controlled atmosphere melting eliminates impurities and ensures consistent alloy composition throughout the entire ingot.
Comprehensive Quality Control System
Our integrated quality management system features real-time process monitoring, advanced spectroscopic analysis, and multi-stage inspection protocols. Every NS142 product undergoes rigorous testing including ultrasonic examination, dimensional verification, and mechanical property validation to exceed industry standards.
Custom Processing & Global Supply
MetalZenith offers extensive customization capabilities including precision machining, specialized heat treatments, and custom dimensions. Our global distribution network and strategic inventory management ensure rapid delivery of NS142 products worldwide with full traceability and technical support.
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