Alloy 205，Nickel 205 Other/Similar Specs，UNS N02205，EFORU

British Specs:，American Specs:AMS 5555 Wire and Ribbon MIL-N-46025，German Specs:

### Technical Datasheet: Nickel 205 - Other Specifications & Equivalent Grades (UNS N02205) #### 1. Overview **Nickel 205** (UNS N02205) is recognized globally under various national and international standards as a nickel alloy with controlled magnesium addition (0.01-0.10%). This unique composition provides enhanced oxidation resistance and improved high-temperature performance compared to standard pure nickel grades, while maintaining excellent corrosion resistance and electrical conductivity. This document outlines the equivalent specifications and specialized standards for Nickel 205 across different regions and industries. #### 2. Chemical Composition (% Weight) The base composition is consistent across major specifications, with the key feature being the controlled magnesium content. | Element | ASTM B160/162 | ASME SB-160/162 | DIN 17740 | ISO 6208 | | :--- | :--- | :--- | :--- | :--- | | **Nickel (Ni)** | 99.0 min | 99.0 min | 99.0 min | 99.0 min | | **Magnesium (Mg)** | **0.01-0.10** | **0.01-0.10** | **0.01-0.10** | **0.01-0.10** | | **Carbon (C)** | 0.15 max | 0.15 max | 0.10 max | 0.15 max | | **Manganese (Mn)** | 0.35 max | 0.35 max | 0.30 max | 0.35 max | | **Iron (Fe)** | 0.40 max | 0.40 max | 0.40 max | 0.40 max | | **Copper (Cu)** | 0.25 max | 0.25 max | 0.20 max | 0.25 max | | **Silicon (Si)** | 0.35 max | 0.35 max | 0.30 max | 0.35 max | | **Sulfur (S)** | 0.01 max | 0.01 max | 0.01 max | 0.01 max | #### 3. Physical Properties Consistent physical properties across all specifications: | Property | Metric Unit | Imperial Unit | | :--- | :--- | :--- | | **Density** | 8.89 g/cm³ | 0.321 lb/in³ | | **Melting Point** | 1435-1445 °C | 2615-2633 °F | | **Thermal Conductivity** | 69 W/m·K | 478 BTU·in/hr·ft²·°F | | **Electrical Resistivity** | 0.096 µΩ·m | 36.8 µΩ·in | | **Modulus of Elasticity** | 186 GPa | 27 x 10⁶ psi | | **Thermal Expansion** | 13.3 µm/m·°C | 7.4 x 10⁻⁶ in/in·°F | #### 4. International Standards & Equivalent Specifications **North American Standards:** - **ASTM Standards:** B160 (Rod/Bar), B162 (Plate/Sheet/Strip), B164 (Rod/Bar), B366 (Fittings), B564 (Forgings) - **ASME Standards:** SB-160, SB-162, SB-164, SB-366, SB-564 - **AWS Specifications:** ERNi-1 (Welding Electrode) - **SAE Standards:** AMS 5556 (Sheet/Strip/Plate) - **Federal Standards:** QQ-N-281 (Grade 3) **European Standards:** - **EN Standards:** EN 10095 (Ni 99.2Mg) - **DIN Standards:** 17740 (Ni 99.2, Material No. 2.4066 with Mg addition) - **BS Standards:** BS 3075 NA 13 - **AFNOR Standards:** N-990Mg **Asian & Other International Standards:** - **JIS Standards:** H4551 NW 2205 - **ISO Standards:** ISO 6208 Ni 990Mg - **GOST Standards:** ГОСТ 849 НП-4 #### 5. Specialized Industry Specifications **Aerospace & Defense:** - **AMS 5556:** Sheet, Strip, and Plate - **AMS 5674:** Forgings and Forging Stock - **MIL-N-23229:** Military Specification (Type III) **Electrical & Electronics:** - **ASTM B160 Electrical Grade:** Enhanced conductivity requirements - **IEC 60121:** Electronic component specifications - **JIS C 2520:** Electrical resistance materials **Nuclear Industry:** - **ASTM B160 Nuclear Grade:** Enhanced testing requirements - **ASME Section III:** Nuclear Applications Class 1, 2, 3 - **RCC-M:** French nuclear design code #### 6. Key Characteristics Across All Specifications * **Consistent High-Temperature Performance:** Enhanced oxidation resistance up to 650°C (1200°F) across all standards * **Uniform Corrosion Resistance:** Excellent performance in caustic environments and oxidizing atmospheres * **Standardized Mechanical Properties:** Consistent minimum mechanical properties maintained across product forms * **Electrical Conductivity:** Good electrical characteristics maintained in all international standards #### 7. Application-Specific Variations **High-Temperature Applications:** - Enhanced creep rupture testing requirements - Strict control of magnesium content for optimized oxidation resistance - Special heat treatment requirements for high-temperature service **Electrical Applications:** - Specific conductivity and resistivity requirements - Controlled magnetic properties verification - Special surface finish requirements for electrical contacts **Chemical Processing:** - Enhanced corrosion testing requirements - Strict impurity control for aggressive environments - Special certification requirements for corrosive service #### 8. Global Equivalency Chart | Region/Country | Standard | Grade/Designation | | :--- | :--- | :--- | | **International** | UNS | N02205 | | **USA** | ASTM/ASME | Nickel 205 | | **Germany** | DIN/DIN EN | 2.4066 / Ni 99.2Mg | | **United Kingdom** | BS | NA 13 | | **France** | AFNOR | N-990Mg | | **Japan** | JIS | NW 2205 | | **Russia** | GOST | НП-4 | | **International** | ISO | Ni 990Mg | #### 9. Quality Assurance Requirements * **Standard Testing:** Chemical analysis, tensile testing, conductivity measurement * **Special Testing:** Oxidation resistance testing, creep testing for high-temperature applications * **Additional Requirements:** Grain size control, non-metallic inclusion rating * **Certification:** Mill test certificates to EN 10204 3.1/3.2 or equivalent * **Traceability:** Full material traceability from melt to final product --- **Disclaimer:** While every effort has been made to ensure the accuracy of this information, users should verify specific requirements with the latest edition of the applicable standard. Local regulations and specific application requirements may dictate additional testing or qualification requirements, particularly for high-temperature and specialized 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 1660 gallon liquid totes Special package is available on request.