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Technical Specifications
Product Overview
Metallurgical Characteristics
UNS N06455 (Hastelloy C-4) is an austenitic nickel-chromium-molybdenum alloy with exceptional corrosion resistance in both oxidizing and reducing environments. The alloy's microstructure consists of a stable austenitic matrix with excellent resistance to chloride-induced stress corrosion cracking and pitting corrosion.
Heat Treatment Process
MetalZenith employs precise solution annealing at 1065-1120°C followed by rapid cooling to achieve optimal corrosion resistance and mechanical properties. The controlled atmosphere heat treatment prevents carbide precipitation and maintains the alloy's corrosion-resistant characteristics.
Manufacturing Process
Our advanced manufacturing process begins with vacuum induction melting (VIM) followed by vacuum arc remelting (VAR) to ensure chemical homogeneity and eliminate inclusions. Hot working is performed between 1150-900°C, followed by solution annealing and rapid cooling. Cold working capabilities allow for enhanced strength properties when required.
Quality Standards & Testing
Every batch undergoes comprehensive testing including chemical analysis via ICP-OES, mechanical testing per ASTM standards, intergranular corrosion testing (ASTM A262), and non-destructive examination. MetalZenith maintains full traceability from raw materials through final inspection, ensuring compliance with NACE MR0175/ISO 15156 for sour service applications.
Corrosion Resistance
UNS N06455 exhibits outstanding resistance to hydrochloric acid, sulfuric acid, phosphoric acid, and various organic acids. The alloy maintains excellent performance in chloride-containing environments and shows superior resistance to stress corrosion cracking compared to conventional stainless steels.
🧪 Chemical Composition
| Element | Weight % |
|---|---|
| Nickel (Ni) | Balance |
| Chromium (Cr) | 14.0-18.0 |
| Molybdenum (Mo) | 14.0-17.0 |
| Iron (Fe) | ≤ 3.0 |
| Titanium (Ti) | ≤ 0.70 |
| Carbon (C) | ≤ 0.015 |
| Manganese (Mn) | ≤ 1.0 |
| Silicon (Si) | ≤ 0.08 |
| Phosphorus (P) | ≤ 0.025 |
| Sulfur (S) | ≤ 0.010 |
| Cobalt (Co) | ≤ 2.0 |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength (Room Temperature) | ≥ 690 MPa |
| Yield Strength (0.2% Offset) | ≥ 310 MPa |
| Elongation in 50mm | ≥ 45% |
| Hardness (Brinell) | ≤ 230 HB |
| Hardness (Rockwell B) | ≤ 95 HRB |
| Impact Energy (Charpy V-notch at 20°C) | ≥ 150 J |
| Fatigue Strength (10&sup7; cycles) | 280 MPa |
| Reduction of Area | ≥ 60% |
| Modulus of Elasticity | 205 GPa |
🔬 Physical Properties
| Property | Value |
|---|---|
| Density | 8.64 g/cm³ |
| Melting Point Range | 1320-1370°C |
| Thermal Conductivity (at 100°C) | 11.1 W/m·K |
| Thermal Expansion Coefficient (20-100°C) | 11.2×10-6/K |
| Specific Heat Capacity | 420 J/kg·K |
| Electrical Resistivity (at 20°C) | 1.25 µΩ·m |
| Magnetic Permeability | 1.002 (Non-magnetic) |
| Curie Temperature | Not applicable |
| Thermal Diffusivity (at 100°C) | 3.06×10-6 m²/s |
📏 Product Specifications
| Specification | Available Options |
|---|---|
| Product Forms | Round bars, flat bars, plates, sheets, tubes, pipes, forgings, wire |
| Round Bar Diameter | 6mm - 300mm |
| Plate Thickness | 3mm - 150mm |
| Sheet Thickness | 0.5mm - 6mm |
| Tube Outer Diameter | 6mm - 219mm |
| Standards Compliance | ASTM B575, ASME SB-575, UNS N06455, DIN 2.4610 |
| Surface Finish | Hot rolled, cold rolled, annealed, pickled, polished |
| Dimensional Tolerance | ±0.1mm to ±0.5mm (depending on form and size) |
| Length Options | Standard lengths: 3m, 6m, 12m; Custom lengths available |
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Our Advantages in Processing UNS N06455
Advanced Vacuum Melting Technology
MetalZenith utilizes state-of-the-art vacuum induction melting (VIM) and vacuum arc remelting (VAR) processes to produce UNS N06455 with exceptional chemical homogeneity, minimal inclusions, and superior metallurgical quality that exceeds industry standards.
Comprehensive Quality Control System
Our ISO 9001:2015 certified facility employs advanced testing equipment including ICP-OES spectrometers, universal testing machines, and ultrasonic inspection systems to ensure every batch meets stringent ASTM and ASME specifications with full traceability documentation.
Custom Processing & Global Supply
MetalZenith offers extensive customization capabilities including specialized heat treatments, precision machining, and custom dimensions. Our global distribution network ensures reliable delivery worldwide with comprehensive technical support and engineering consultation services.
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