Nickel A 200 Nickel Alloy,E FORU

### **Product Introduction: Nickel A 200 (UNS N02200) Nickel Alloy** **Nickel A 200 (UNS N02200)** is a commercially pure wrought nickel alloy containing at least 99.0% nickel, recognized for its excellent mechanical properties and superior corrosion resistance. This alloy combines outstanding resistance to various corrosive environments with good thermal, electrical, and magnetic properties, making it one of the most versatile nickel alloys for general corrosion-resistant applications. The alloy exhibits particularly excellent resistance to corrosion by caustic alkalis, making it suitable for handling sodium hydroxide and other strong alkaline solutions. Its combination of good ductility and moderate strength allows for easy fabrication and forming into various industrial components. --- #### **1. Chemical Composition (Weight %)** The typical chemical composition of Nickel A 200 is as follows: | Element | Content (%) | Element | Content (%) | |---------|-------------|---------|-------------| | **Nickel (Ni)** | 99.0 min | **Copper (Cu)** | 0.25 max | | **Iron (Fe)** | 0.40 max | **Manganese (Mn)** | 0.35 max | | **Carbon (C)** | 0.15 max | **Silicon (Si)** | 0.35 max | | **Sulfur (S)** | 0.01 max | **Other Elements** | 0.50 max | --- #### **2. Physical & Mechanical Properties** **Physical Properties:** | Property | Metric Units | Imperial Units | |----------|-----------------|------| | **Density** | 8.89 g/cm³ | 0.321 lb/in³ | | **Melting Point** | 1435 - 1440 °C | 2615 - 2624 °F | | **Thermal Conductivity** | 70.0 W/m·K | 485 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** | 0.095 μΩ·m | 57.3 Ω·cir mil/ft | | **Modulus of Elasticity** | 180 GPa | 26.1 x 10⁶ psi | **Mechanical Properties (Annealed Condition):** | Property | Value | |----------|-----------------| | **Tensile Strength** | 380 - 550 MPa | 55 - 80 ksi | | **Yield Strength (0.2% Offset)** | 100 - 250 MPa | 15 - 36 ksi | | **Elongation** | 40 - 50% | | **Hardness (Rockwell B)** | 60 - 80 HRB | --- #### **3. Key Characteristics & Product Applications** **Key Characteristics:** - **Excellent Corrosion Resistance**: Superior performance in alkaline environments and various corrosive media - **Good Mechanical Properties**: Balanced combination of strength and ductility - **High Thermal Conductivity**: Efficient heat transfer capabilities - **Excellent Fabricability**: Good weldability, formability, and machinability - **Magnetic Properties**: Suitable for electronic applications requiring specific magnetic characteristics - **Food-Grade Compatibility**: Approved for food processing applications **Product Applications:** Nickel A 200 serves numerous critical applications across various industries: - **Chemical Processing**: - Caustic evaporation equipment - Chemical reaction vessels - Heat exchangers and condensers - Piping systems and valves - **Food & Pharmaceutical**: - Food processing equipment - Pharmaceutical manufacturing vessels - Brewing and distillery equipment - Food-grade piping systems - **Electronics & Electrical**: - Electronic components and connectors - Magnetic shielding applications - Electrical resistance units - Battery components - **Industrial Applications**: - Plating industry fixtures and anodes - Industrial heating elements - Instrumentation components - Marine engineering components --- #### **4. International Standards & Specifications** Nickel A 200 complies with the following international standards: **Primary Specifications:** - **ASTM B160**: Nickel Rod and Bar - **ASTM B161**: Nickel Seamless Pipe and Tube - **ASTM B162**: Nickel Plate, Sheet, and Strip - **UNS N02200**: Unified Numbering System **International Equivalents:** - **EN**: NW 2200 (Ni99.0) - **DIN**: 2.4060 - **JIS**: NCP 01 - **ISO**: NW 2200 - **AMS**: 5550 (Aerospace Material Specification) --- #### **Summary of Key Advantages** - **High Purity Composition**: 99.0% minimum nickel content ensures consistent performance - **Excellent Corrosion Resistance**: Superior performance in alkaline and various chemical environments - **Proven Reliability**: Long service history in demanding industrial applications - **Superior Fabricability**: Easy to weld, form, and machine using conventional methods - **Versatile Applications**: Suitable for chemical processing, food industry, and electronic applications - **Comprehensive Standardization**: Meets all major international quality standards **Technical Note**: Nickel A 200 exhibits excellent weldability using gas tungsten arc welding (GTAW), gas metal arc welding (GMAW), and shielded metal arc welding (SMAW) processes. The alloy work hardens during cold working operations, requiring intermediate annealing at 650-815°C (1200-1500°F) for severe deformations. The material demonstrates particularly excellent resistance to corrosion by caustic alkalis, fresh water, and various neutral and alkaline salt solutions. Proper cleaning and handling procedures should be maintained to prevent surface contamination that could affect corrosion resistance in critical 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 3169 gallon liquid totes Special package is available on request.