Alloy 230,Haynes 230 Sheet,UNS N06230,E FORU

British Specs:，American Specs:AMS 5878 Sheet, Strip and Plate AMS 5891 Bar and Forgings，German Specs:DIN 17744 No 2.4733,NiCr22W14Mo

### **Technical Data Sheet: Alloy 230 / Haynes 230 Sheet / UNS N06230** **Nickel-Chromium-Tungsten-Molybdenum Superalloy Sheet Product** --- #### **1. Product Overview** **Alloy 230 Sheet** (commercially known as **Haynes 230 Sheet**, UNS N06230) is a nickel-chromium-tungsten-molybdenum superalloy supplied in thin sheet form, offering exceptional high-temperature strength and outstanding oxidation resistance. This product is specifically designed for applications requiring lightweight yet durable components capable of withstanding temperatures up to **1200°C (2192°F)**, while maintaining excellent formability and weldability for fabrication into complex geometries. --- #### **2. Chemical Composition (Weight %)** | Element | Content (%) | Metallurgical Function | |---------|-------------|------------------------| | **Nickel (Ni)** | Balance | Austenitic matrix stability | | **Chromium (Cr)** | 20.0–24.0 | Oxidation and corrosion resistance | | **Tungsten (W)** | 13.0–15.0 | Solid-solution strengthening | | **Molybdenum (Mo)** | 1.0–3.0 | Solid-solution strengthening | | **Iron (Fe)** | ≤ 3.0 | Residual element | | **Cobalt (Co)** | ≤ 5.0 | Residual element | | **Manganese (Mn)** | ≤ 0.50 | Hot workability improvement | | **Silicon (Si)** | ≤ 0.40 | Residual element | | **Aluminum (Al)** | 0.20–0.50 | Oxidation resistance | | **Carbon (C)** | 0.05–0.15 | Carbide strengthening | | **Lanthanum (La)** | 0.005–0.050 | Oxide scale adhesion enhancement | | **Boron (B)** | 0.001–0.010 | Grain boundary reinforcement | --- #### **3. Physical Properties** | Property | Value | |----------|-------| | **Density** | 8.97 g/cm³ (0.324 lb/in³) | | **Melting Range** | 1330–1380°C (2426–2516°F) | | **Thermal Conductivity** | 11.6 W/m·K at 100°C | | **Mean CTE (20-100°C)** | 12.4 µm/m·°C | | **Electrical Resistivity** | 1.24 µΩ·m at 25°C | | **Magnetic Permeability** | Essentially non-magnetic | --- #### **4. Mechanical Properties** **Room Temperature (Solution Annealed):** - **Tensile Strength**: 795 MPa min (115 ksi min) - **Yield Strength (0.2% Offset)**: 345 MPa min (50 ksi min) - **Elongation**: 40% min - **Hardness**: 85–100 HRB **Elevated Temperature Performance:** - **Stress Rupture Strength**: 55 MPa at 980°C for 100 hours - **Creep Strength**: 40 MPa at 1000°C for 1000 hours - **Thermal Fatigue Resistance**: Excellent --- #### **5. Product Specifications** **Sheet Size Range:** - **Thickness**: 0.5 mm to 6.0 mm (0.020" to 0.236") - **Width**: 600 mm to 1500 mm (24" to 59") - **Length**: 1000 mm to 3000 mm (39" to 118") **Available Conditions:** - **Hot Rolled**: As-rolled condition - **Solution Annealed**: Optimal for fabrication - **Cold Rolled**: Improved surface finish - **Surface Finished**: Pickled, ground, or polished **Tolerance Standards:** - **Thickness Tolerance**: ±5% standard - **Width Tolerance**: ±2 mm - **Length Tolerance**: ±3 mm - **Flatness**: 3 mm/m maximum --- #### **6. Applications** **Aerospace & Defense:** - Combustion chamber liners and seals - Afterburner components and ducting - Exhaust system thermal protection - Engine heat shields and cowlings **Industrial Processing:** - Heat treatment furnace liners - Radiant tubes and retorts - Chemical processing equipment - High-temperature conveyor belts **Power Generation:** - Gas turbine combustion components - Heat exchanger parts - Boiler baffles and seals - Nuclear reactor instrumentation panels **Special Applications:** - Semiconductor processing equipment - Glass manufacturing fixtures - Ceramic kiln components - Research and laboratory equipment --- #### **7. International Standards** | Standard Type | Standard Number | Specification | |---------------|-----------------|---------------| | **UNS** | N06230 | Material designation | | **ASTM** | B435 | Sheet, Plate, and Strip | | **AMS** | 5878 | Sheet, Strip, and Plate | | **ASME** | SB-435 | Boiler and Pressure Vessel Code | | **EN/DIN** | 2.4733 | European designation | | **ISO** | 6208 | Sheet and plate products | --- #### **8. Fabrication & Processing** **Forming & Stamping:** - **Cold Forming**: Excellent in annealed condition - **Hot Forming**: 1170-1230°C (2140-2250°F) - **Minimum Bend Radius**: 2T for 90° bends - **Stamping**: Suitable for complex shapes - **Deep Drawing**: Good capability with proper tooling **Welding & Joining:** - **Welding Processes**: GTAW, GMAW, Laser - **Filler Metal**: AWS A5.14 ERNiCrWMo-1 - **Preheat**: Not required - **Post-Weld Heat Treatment**: Generally not required - **Brazing**: Compatible with nickel-based filler metals **Cutting & Machining:** - **Shearing**: Clean edges achievable - **Plasma Cutting**: Suitable for thick sheets - **Waterjet Cutting**: Ideal for complex shapes - **Laser Cutting**: Precision cutting capability - **Machining**: Use carbide tools with positive rake --- #### **9. Quality Assurance** **Standard Testing:** - Chemical analysis certification - Tensile testing per ASTM E8 - Hardness testing per ASTM E18 - Surface quality inspection - Dimensional verification **Special Testing Available:** - Ultrasonic examination - Flattening test for formability - High-temperature tensile testing - Oxidation resistance testing - Microstructural evaluation --- #### **10. Technical Advantages** - **Exceptional high-temperature strength** up to 1200°C - **Superior oxidation resistance** in cyclic conditions - **Excellent thermal stability** and low thermal expansion - **Good resistance to carburization and nitridation** - **Maintains mechanical properties** after long-term exposure - **Excellent fabricability** for complex components --- #### **11. Handling & Storage** **Storage Conditions:** - Dry, temperature-controlled environment - Protection from mechanical damage - Avoid contact with corrosive substances - Proper stacking to prevent deformation **Packaging:** - Protective interleaving between sheets - Wooden crates for heavy shipments - Weather-resistant wrapping - Clear identification and labeling --- **Contact Information:** For technical specifications, fabrication guidance, and application support for Haynes 230 Sheet products, please contact our technical specialists for comprehensive engineering assistance and material selection recommendations.

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 2254 gallon liquid totes Special package is available on request.