C 600ESR Nickel-Chromium-Iron Alloy,UNS N06600,E FORU

### **Product Introduction: C-600ESR Nickel-Chromium-Iron Alloy (UNS N06600)** **C-600ESR Nickel-Chromium-Iron Alloy (UNS N06600)** is a premium-grade nickel-chromium-iron alloy produced through the **Electroslag Remelting (ESR)** process, offering enhanced metallurgical quality and superior performance characteristics compared to conventional wrought alloy 600. This advanced manufacturing process results in exceptional material purity, improved homogeneity, and optimized mechanical properties, making it particularly suitable for critical applications in aerospace, nuclear, and high-temperature processing industries. The ESR process significantly reduces non-metallic inclusions, minimizes segregation, and enhances the alloy's structural integrity, providing superior resistance to fatigue, creep, and stress corrosion cracking in demanding service environments. --- #### **1. Chemical Composition (Weight %)** The chemical composition of C-600ESR maintains the same specifications as UNS N06600 but with enhanced purity: | Element | Content (%) | Element | Content (%) | |---------|-------------|---------|-------------| | **Nickel (Ni)** | 72.0 min | **Chromium (Cr)** | 14.0 - 17.0 | | **Iron (Fe)** | 6.0 - 10.0 | **Copper (Cu)** | 0.5 max | | **Manganese (Mn)** | 1.0 max | **Carbon (C)** | 0.15 max | | **Silicon (Si)** | 0.5 max | **Sulfur (S)** | 0.015 max | | **Aluminum (Al)** | 0.3 max | **Titanium (Ti)** | 0.3 max | --- #### **2. Physical & Mechanical Properties** **Physical Properties:** | Property | Metric Units | Imperial Units | |----------|-----------------|------| | **Density** | 8.47 g/cm³ | 0.306 lb/in³ | | **Melting Range** | 1354 - 1413 °C | 2470 - 2575 °F | | **Thermal Conductivity** | 14.9 W/m·K | 103.3 Btu·in/hr·ft²·°F | | **Coefficient of Thermal Expansion** | 13.3 μm/m·°C | 7.4 μin/in·°F | | **Specific Heat** | 444 J/kg·K | 0.106 Btu/lb·°F | | **Electrical Resistivity** | 1.03 μΩ·m | - | | **Modulus of Elasticity** | 214 GPa | 31.0 x 10⁶ psi | **Enhanced Mechanical Properties (ESR Processed, Annealed Condition):** | Property | Value | |----------|-----------------| | **Tensile Strength** | 620 - 760 MPa | 90 - 110 ksi | | **Yield Strength (0.2% Offset)** | 280 - 450 MPa | 41 - 65 ksi | | **Elongation** | 45 - 60% | | **Reduction of Area** | 50 - 65% | | **Hardness (Rockwell B)** | 70 - 85 HRB | **High-Temperature Performance (at 815°C/1500°F):** | **Tensile Strength** | 290 MPa | 42 ksi | | **Yield Strength** | 195 MPa | 28 ksi | | **Creep Rupture Strength (1000h)** | 45 MPa | 6.5 ksi | --- #### **3. Key Characteristics & Product Applications** **Enhanced Characteristics due to ESR Processing:** - **Superior Metallurgical Purity**: Significant reduction in sulfide and oxide inclusions - **Improved Homogeneity**: Uniform chemical composition and microstructure throughout the cross-section - **Enhanced Fatigue Performance**: Superior resistance to cyclic loading conditions - **Better Crack Propagation Resistance**: Improved tolerance to defect initiation and growth - **Superior Hot Workability**: Enhanced formability during forging and hot working operations - **Improved Weldability**: Reduced susceptibility to weld-related defects **Critical Applications:** C-600ESR serves in the most demanding applications where reliability is paramount: - **Aerospace & Defense**: - Gas turbine engine discs and shafts - Turbine blades and vanes - Afterburner components - Missile and rocket motor cases - **Nuclear Power Generation**: - Reactor core internal components - Control rod drive mechanisms - Nuclear fuel assembly hardware - Steam generator critical parts - **Power Generation**: - Gas turbine components - High-temperature bolting - Turbine discs and rotors - Heat exchanger critical parts - **Chemical Processing**: - High-pressure reactor vessels - Critical valve components - High-temperature furnace parts - Process piping systems --- #### **4. International Standards & Specifications** C-600ESR complies with stringent international standards: **Primary Specifications:** - **UNS N06600**: Unified Numbering System - **ASTM B166**: Nickel-Chromium-Iron Alloy Rod, Bar, and Wire - **AMS 5665**: Nickel Alloy, Corrosion and Heat-Resistant, Bars, Forgings, and Rings **ESR-Specific Requirements:** - **AMS 2280**: Quality Assurance of Premium Aircraft Grade Alloys - **ASTM A988**: Standard Specification for Hot Isostatically Pressed Stainless Steel and Nickel Alloy Flanges, Fittings, Valves, and Parts - **Nuclear Standards**: ASME Section III for Nuclear Components --- #### **Summary of Key Advantages** - **Enhanced Metallurgical Quality**: Superior purity and homogeneity through ESR processing - **Improved Mechanical Properties**: Enhanced strength, ductility, and fatigue resistance - **Superior High-Temperature Performance**: Better creep and stress rupture properties - **Enhanced Reliability**: Reduced defect probability for critical applications - **Optimized for Demanding Service**: Ideal for aerospace, nuclear, and high-temperature applications - **Stringent Quality Assurance**: Meets premium-grade industry specifications **Technical Note**: The Electroslag Remelting process provides C-600ESR with significant advantages over conventional manufacturing methods. The controlled solidification results in a uniform, fine-grained microstructure with minimal chemical segregation. This enhanced structure provides improved resistance to fatigue crack initiation and propagation, superior stress rupture properties, and enhanced damage tolerance. The material exhibits excellent weldability with reduced susceptibility to hot cracking. For optimal performance in critical applications, specific heat treatment cycles tailored to the ESR microstructure are recommended. The improved cleanliness and homogeneity make C-600ESR particularly suitable for applications requiring ultrasonic inspection and where maximum reliability is essential.

Packing of Standard Packing: Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 3188 gallon liquid totes Special package is available on request.