INCONEL Alloy N06230 Ni-Cr-W-Mo Alloy,，1

### **Product Introduction: INCONEL® Alloy N06230 (HAYNES® 230®)** **INCONEL® Alloy N06230** is a nickel-chromium-tungsten-molybdenum alloy engineered for exceptional high-temperature strength and outstanding resistance to oxidizing environments up to 1150°C (2100°F). This solid-solution strengthened superalloy combines excellent high-temperature stability with superior resistance to nitriding and carburizing atmospheres, making it particularly suitable for the most demanding industrial heating and power generation applications. The alloy's optimized composition provides a unique balance of creep strength, thermal stability, and environmental resistance, supported by the formation of a stable, protective chromium oxide scale that ensures long-term performance in aggressive high-temperature environments. --- ### **Chemical Composition** | Element | Content (%) | |---------|-------------| | **Nickel (Ni)** | Balance | | **Chromium (Cr)** | 20.0 - 24.0 | | **Tungsten (W)** | 13.0 - 15.0 | | **Molybdenum (Mo)** | 1.0 - 3.0 | | **Iron (Fe)** | 3.0 max | | **Cobalt (Co)** | 5.0 max | | **Manganese (Mn)** | 0.30 - 1.00 | | **Silicon (Si)** | 0.25 - 0.75 | | **Aluminum (Al)** | 0.20 - 0.50 | | **Carbon (C)** | 0.05 - 0.15 | | **Lanthanum (La)** | 0.005 - 0.050 | | **Boron (B)** | 0.015 max | --- ### **Physical Properties** | Property | Value | |----------|-------| | **Density** | 8.97 g/cm³ | | **Melting Point** | 1300 - 1370 °C | | **Thermal Conductivity** | 11.5 W/m·K (at 20°C) | | **Electrical Resistivity** | 1.24 μΩ·m | | **Modulus of Elasticity** | 224 GPa | | **Coefficient of Thermal Expansion** | 12.8 μm/m·°C (20-1000°C) | | **Specific Heat Capacity** | 420 J/kg·K | | **Magnetic Response** | Essentially non-magnetic | --- ### **Mechanical Properties** **Room Temperature Properties (Annealed):** - **Tensile Strength:** 760 - 965 MPa - **Yield Strength (0.2% Offset):** 345 - 485 MPa - **Elongation:** 45 - 55% - **Hardness:** 85 - 100 HRB **High-Temperature Performance:** - **Creep Rupture Strength (980°C/1000h):** 35 MPa - **Tensile Strength at 870°C:** 275 MPa - **Yield Strength at 870°C:** 195 MPa - **Excellent long-term thermal stability** --- ### **Heat Treatment** **Standard Annealing Treatment:** - **Temperature:** 1205 - 1260°C (2200 - 2300°F) - **Time:** 30-60 minutes per inch of thickness - **Cooling:** Rapid air cooling or water quenching **Stress Relieving:** - **Temperature:** 870 - 900°C (1600 - 1650°F) - **Cooling:** Air cooling --- ### **Key Characteristics & Advantages** 1. **Exceptional High-Temperature Strength** - Superior creep and stress rupture properties - Excellent thermal fatigue resistance - Maintains mechanical integrity up to 1150°C 2. **Outstanding Oxidation Resistance** - Excellent resistance to cyclic oxidation - Stable protective oxide scale formation - Lanthanum addition enhances scale adhesion 3. **Versatile Environmental Resistance** - Good resistance to carburizing and nitriding atmospheres - Excellent performance in combustion environments - Resistant to sulfur-containing atmospheres 4. **Excellent Fabricability** - Good weldability using conventional methods - Suitable for hot and cold forming operations - Can be machined using standard techniques --- ### **Product Applications** **Industrial Heating:** - Radiant tubes and retorts - Furnace muffles and rollers - Heat treatment fixtures - Annealing covers and baskets **Power Generation:** - Gas turbine combustion components - Heat exchanger tubing - Transition ducts and seals - Boiler components **Aerospace:** - Combustion chamber parts - Afterburner components - Rocket engine parts - High-temperature fasteners **Chemical Processing:** - Reformer tubes - High-temperature reactors - Heat exchanger components - Process piping systems --- ### **International Standards** | Standard Type | Standard Number | Description | |---------------|-----------------|-------------| | **UNS** | N06230 | Unified Numbering System | | **ASTM** | B435 | Plate, Sheet, and Strip | | **ASTM** | B572 | Rod and Bar | | **ASTM** | B619/B622 | Welded and Seamless Pipe | | **ASME** | SB-435, SB-572 | Code Cases | | **AMS** | 5878 | Sheet and Strip | --- ### **Summary** **INCONEL® Alloy N06230** represents a premium nickel-chromium-tungsten-molybdenum superalloy that delivers exceptional performance in the most demanding high-temperature applications. Its optimized composition provides an outstanding balance of high-temperature strength, oxidation resistance, and thermal stability up to 1150°C. The alloy's superior creep resistance, combined with excellent resistance to aggressive industrial atmospheres, makes it particularly valuable for critical components in industrial heating, power generation, and aerospace applications. Certification to major international standards including ASTM, ASME, and AMS specifications ensures consistent quality and reliability, providing engineers with a proven material solution for applications where conventional materials cannot withstand the combined effects of high temperature, mechanical stress, and corrosive environments. The alloy's combination of properties establishes it as a benchmark material for advancing technology in high-temperature engineering applications.

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 3350 gallon liquid totes Special package is available on request.