Nickel 222,ASTM F 239; BS 3504; DIN 17740; Werkstoff Nr. 2.4053, Nickel, Ni，1

### **Product Introduction: Nickel 222 (Ni 99.6)** **Nickel 222** is a commercially pure, low-carbon nickel material known for its excellent electrical and thermal conductivity, good corrosion resistance, and high formability. It is characterized by its very high nickel content (typically >99.6%) and is supplied in a soft, annealed condition, making it ideal for applications requiring complex forming and deep drawing. This alloy is a premium variant of pure nickel, often specified for electronic components and applications where consistent performance and high purity are critical. --- ### **International Standards & Material Equivalents** Nickel 222 is standardized under several key international designations, with the Werkstoff number and DIN standard being the primary European identifiers. | Standard Type | Standard Number | Designation / Purpose | | :--- | :--- | :--- | | **Werkstoff Nr.** | **2.4053** | **Nickel 222** | | **DIN (German)** | **DIN 17740** | **Ni 99.6** (Chemical Composition) | | **BS (British)** | **BS 3504** | **NA 14** (Pure Nickel for Electronics) | | **ASTM (USA)** | **ASTM F239** | Covers pure nickel strip for electron tube use | | **UNS (USA)** | N02200 | Often associated, though F239 is more specific | > **Note:** The designations **Werkstoff 2.4053** and **DIN 17740 Ni 99.6** are the most direct equivalents for the material known as Nickel 222. BS 3504 NA 14 and ASTM F239 specify its use in electronic applications. --- ### **Chemical Composition** The composition is controlled to ensure high purity, with particularly low levels of impurities like carbon, iron, and copper to optimize its electrical and forming characteristics. | Element | Content (%) (Typical for DIN 17740 Ni 99.6) | | :--- | :--- | | **Nickel (Ni)** | 99.6 min. | | **Cobalt (Co)** | - | | **Copper (Cu)** | 0.01 max. | | **Iron (Fe)** | 0.01 max. | | **Manganese (Mn)** | 0.001 max. | | **Carbon (C)** | 0.01 max. | | **Silicon (Si)** | 0.01 max. | | **Sulfur (S)** | 0.001 max. | | **Magnesium (Mg)** | 0.01 max. | *Note: Exact limits may vary slightly depending on the specific standard and product form.* --- ### **Physical Properties** Nickel 222 exhibits the classic physical properties of high-purity nickel, including excellent conductivity and magnetic characteristics. | Property | Value | | :--- | :--- | | **Density** | 8.90 g/cm³ (0.321 lb/in³) | | **Melting Point** | 1455 °C (2651 °F) | | **Thermal Conductivity** | 82 - 90 W/m·K (at 20°C) | | **Electrical Resistivity** | ~0.096 μΩ·m (at 20°C) | | **Modulus of Elasticity** | 200 GPa (29 x 10⁶ psi) | | **Magnetic Permeability** | Low, but ferromagnetic at room temperature | | **Curie Temperature** | 360 °C (680 °F) | --- ### **Mechanical Properties (Typical for Annealed Condition)** Supplied in a soft-annealed state, Nickel 222 offers low strength and high ductility, which is essential for its primary applications. | Property | Value (Annealed) | | :--- | :--- | | **Tensile Strength** | 300 - 400 MPa (44 - 58 ksi) | | **Yield Strength (0.2% Offset)** | 80 - 150 MPa (12 - 22 ksi) | | **Elongation** | 40% - 50% | | **Hardness (Vickers HV)** | 60 - 90 HV | --- ### **Key Characteristics & Advantages** 1. **Excellent Ductility and Deep Drawing Properties:** Its soft, annealed condition allows for severe forming, stamping, and deep drawing without cracking. 2. **High Electrical Conductivity:** The high purity provides excellent conductivity, making it suitable for sensitive electronic components. 3. **Good Thermal Conductivity:** Efficiently dissipates heat. 4. **Controlled Magnetic Properties:** It is ferromagnetic and exhibits a distinct Curie point at 360°C, a property utilized in some temperature-control devices. 5. **Good Corrosion Resistance:** Resists corrosion in many atmospheres, fresh water, and alkalis. It is particularly resistant to caustic alkalies. --- ### **Product Applications** The primary use of Nickel 222 is in the electronics and electrical industries, leveraging its formability and conductivity. * **Electronics and Vacuum Technology:** * **Electron Tubes:** Anodes, cathodes, and other internal components (as directly specified in ASTM F239). * **Thyratrons and Magnetrons:** Critical internal parts. * **Lead Frames and Connectors:** For specialized components. * **Battery Components.** * **Chemical Processing:** * Equipment for handling caustic alkalies (e.g., sodium hydroxide) at moderate temperatures. * Reaction vessels and crucibles for high-purity chemical processes. * **Other Applications:** * **Aerospace:** Waveguides and other electronic housings. * **Research Equipment:** Shields and containers. * **Glass-to-Metal Seals:** Due to its predictable thermal expansion characteristics. --- ### **Comparison with Other Pure Nickels** * **vs. Nickel 200/201 (UNS N02200/N02201):** Nickel 222 is essentially a high-purity, electronically-focused version of these more general-purpose pure nickels. It often has tighter control on impurities like Iron and Copper and is supplied to a specific soft temper for forming. * **vs. Nickel 212 (Werkstoff 2.4110):** While both are pure nickels, Nickel 222 (2.4053) is typically specified for its superior forming characteristics for electronic parts, whereas Nickel 212 is a more general-purpose grade with slightly different impurity limits. ### **Summary** **Nickel 222 (Werkstoff 2.4053)** is a high-purity, soft-annealed nickel alloy engineered for demanding applications, particularly in the electronic and vacuum tube industries. Its exceptional formability, combined with excellent electrical conductivity and good corrosion resistance, makes it a premium choice for manufacturers of complex and critical components. Standards like **ASTM F239** and **BS 3504 NA 14** underscore its role as a specialized material for high-performance electronic 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 3289 gallon liquid totes Special package is available on request.