Alloy W,Hastelloy W Strip,UNS N10004,E FORU

British Specs:，American Specs:AMS 5755 Bar and Forgings AMS 5786 Welding Wire，German Specs:

### **Product Datasheet: Alloy W / Hastelloy® W Strip (UNS N10004)** **Overview** **Alloy W**, commercially known as **Hastelloy® W**, is a nickel-molybdenum-chromium superalloy specifically engineered for exceptional corrosion resistance in severe chemical environments. Designated as **UNS N10004**, this solid-solution strengthened nickel-based alloy offers outstanding performance in both oxidizing and reducing media. The **strip** product form is cold-rolled to precise dimensional tolerances and superior surface finish, making it ideal for high-volume manufacturing of components requiring reliable performance in aggressive chemical services up to **980°C (1800°F)**. --- ### **1. Chemical Composition** The chemical composition of Hastelloy W (UNS N10004) strip conforms to the following specifications (balance is Nickel): | Element | Content (%) | |---------|-------------| | **Nickel (Ni)** | Balance | | **Molybdenum (Mo)** | 23.0 - 26.0 | | **Chromium (Cr)** | 4.5 - 7.0 | | **Iron (Fe)** | 4.0 - 7.0 | | **Cobalt (Co)** | ≤ 2.5 | | **Tungsten (W)** | 0.5 - 1.5 | | **Manganese (Mn)** | ≤ 1.0 | | **Silicon (Si)** | ≤ 1.0 | | **Vanadium (V)** | ≤ 0.2 | | **Carbon (C)** | ≤ 0.12 | | **Phosphorus (P)** | ≤ 0.04 | | **Sulfur (S)** | ≤ 0.03 | * **Functional Role of Key Elements:** * **Ni (Nickel)**: Forms the austenitic matrix, providing fundamental corrosion resistance and microstructural stability. * **Mo (Molybdenum)**: Enhances resistance to reducing acids and prevents localized corrosion. * **Cr (Chromium)**: Improves resistance to oxidizing environments and high-temperature oxidation. * **W (Tungsten)**: Provides solid-solution strengthening and enhances overall corrosion resistance. --- ### **2. Physical Properties** Characteristic physical properties for Hastelloy W strip at room temperature: | Property | Metric Value | Imperial Value | |----------|--------------|----------------| | **Density** | 8.94 g/cm³ | 0.323 lb/in³ | | **Melting Point** | 1330 - 1380 °C | 2425 - 2515 °F | | **Specific Heat (20°C)** | 442 J/kg·K | 0.106 Btu/lb·°F | | **Thermal Conductivity (20°C)** | 10.9 W/m·K | 75.6 Btu·in/hr·ft²·°F | | **Mean Coefficient of Thermal Expansion (20-100°C)** | 11.5 μm/m·°C | 6.4 x10⁻⁶ in/in·°F | | **Modulus of Elasticity** | 205 GPa | 29.7 x 10⁶ psi | | **Electrical Resistivity** | 1.30 μΩ·m | 790 ohm·cir mil/ft | --- ### **3. Mechanical Properties** Typical mechanical properties for Hastelloy W strip in various tempers: | Property | Annealed Condition | Hard Temper | |----------|-------------------|----------------| | **Tensile Strength** | 690 - 860 MPa (100 - 125 ksi) | 895 - 1100 MPa (130 - 160 ksi) | | **Yield Strength (0.2% Offset)** | 310 - 485 MPa (45 - 70 ksi) | 790 - 1035 MPa (115 - 150 ksi) | | **Elongation (in 50mm)** | 45 - 60% | 5 - 20% | | **Hardness** | 85 - 100 HRB | 25 - 40 HRC | * **Corrosion Performance**: Excellent resistance to sulfuric acid at all concentrations, good performance in hydrochloric and phosphoric acids, and superior resistance to stress corrosion cracking. --- ### **4. International Standards** Hastelloy W (UNS N10004) strip conforms to the following international standards: | Standard Body | Standard Designation | Product Form | |---------------|----------------------|--------------| | **ASTM International** | **ASTM B435** | Plate, Sheet, and Strip | | **ASTM International** | **ASTM B906** | General Requirements for Flat-Rolled Nickel Alloys | | **ASME** | **ASME SB-435** | Pressure Vessel Components | | **European Standard** | **EN 10095** | Heat-Resisting Steels and Nickel Alloys | | **UNS** | **N10004** | Unified Numbering System | --- ### **5. Product Applications** Hastelloy W strip is extensively utilized in applications requiring precise dimensions and superior corrosion resistance: **Electronics & Electrical Applications:** - Battery contact springs and clips - Electrical connector components - Chemical sensor elements - Instrumentation components - High-temperature electrical contacts **Industrial Components:** - Corrosion-resistant gaskets and seals - Chemical processing equipment parts - Precision springs for corrosive environments - Fastener components - Filter and screen elements **Chemical Processing:** - Catalyst support grids - Laboratory equipment components - Analytical instrument parts - Process control elements - Sampling system components **Automotive & Aerospace:** - Fuel system components - Sensor protection elements - Chemical handling system parts - Environmental control components --- ### **6. Fabrication Characteristics** * **Formability**: Excellent in annealed condition for stamping and forming * **Weldability**: Excellent using GTAW, GMAW processes * **Machinability**: Good with proper tool selection and techniques * **Heat Treatment**: Solution anneal at 1150-1200°C (2100-2190°F) * **Surface Finish**: Bright annealed, matte, or special polished --- ### **7. Available Specifications** * **Thickness Range**: 0.05mm to 2.0mm (0.002" to 0.080") * **Width Range**: 2mm to 600mm (0.08" to 24") * **Temper Conditions**: Annealed, quarter hard, half hard, full hard * **Surface Finish**: Bright annealed, pickled, or special polished * **Edge Condition**: Mill edge, slit edge, or rolled edge --- ### **8. Quality Assurance** * **Dimensional Tolerance**: ±0.005mm thickness tolerance available * **Surface Quality**: Consistent surface finish across entire coil * **Certification**: EN 10204 3.1/3.2 material certificates * **Traceability**: Full material traceability maintained --- **Disclaimer:** *Hastelloy® is a registered trademark of Haynes International. This information is for reference purposes only. Always consult relevant material standards and manufacturer's technical data sheets for certified properties. Performance in specific applications should be verified through appropriate testing and corrosion evaluation.*

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 1878 gallon liquid totes Special package is available on request.