Alloy 200，Nickel 200 Forgings，UNS N02200，EFORU

British Specs:BS 3072 BS 3073 BS 3074 BS 3075 BS 3076 NA12，American Specs:ASTM B162 ASTM B163 ASTM B725 ASTM B730，German Specs:WS 2.4060 WS 2.4066

### **Technical Datasheet: Nickel 200 Forgings (UNS N02200)** #### **1. Product Overview** **Nickel 200 Forgings** (commercially known as **Alloy 200 Forgings**) are high-integrity components manufactured through the controlled deformation process of commercially pure nickel (99.6% minimum). The forging process enhances the mechanical properties of Nickel 200 by refining the grain structure and improving density, resulting in superior strength and reliability for critical applications. These forgings maintain the excellent corrosion resistance inherent to Nickel 200 while providing improved mechanical properties in specific orientations. Suitable for service from cryogenic temperatures up to approximately **315°C (600°F)**, Nickel 200 Forgings are ideal for components requiring high structural integrity in corrosive environments. **High-Temperature Advisory:** For continuous service above 315°C (600°F), **Nickel 201 Forgings (UNS N02201)** are recommended due to their lower carbon content, which prevents embrittlement from grain-boundary carbide formation. #### **2. Chemical Composition (% Weight)** Composition conforms to ASTM B564 for nickel alloy forgings. | Element | Content (%) (ASTM B564) | Content (%) (Typical) | | :--- | :--- | :--- | | **Nickel (Ni)** | 99.0 min | ≥ 99.6 | | **Carbon (C)** | 0.15 max | 0.08 | | **Manganese (Mn)** | 0.35 max | 0.20 | | **Iron (Fe)** | 0.40 max | 0.20 | | **Copper (Cu)** | 0.25 max | 0.15 | | **Silicon (Si)** | 0.35 max | 0.15 | | **Sulfur (S)** | 0.01 max | 0.005 | #### **3. Physical Properties** | Property | Metric Unit | Imperial Unit | | :--- | :--- | :--- | | **Density** | 8.89 g/cm³ | 0.321 lb/in³ | | **Melting Point** | 1435-1445 °C | 2615-2633 °F | | **Thermal Conductivity** (at 25°C) | 70 W/m·K | 485 BTU·in/hr·ft²·°F | | **Electrical Resistivity** | 0.095 µΩ·m | 36.5 µΩ·in | | **Modulus of Elasticity** | 186 GPa | 27 x 10⁶ psi | | **Thermal Expansion Coefficient** (20-100°C) | 13.3 µm/m·°C | 7.4 x 10⁻⁶ in/in·°F | | **Curie Temperature** | ~ 360 °C | ~ 680 °F | #### **4. Mechanical Properties (Solution Annealed Condition)** | Property | Metric Unit | Imperial Unit | | :--- | :--- | :--- | | **Tensile Strength** | 480 - 620 MPa | 70 - 90 ksi | | **Yield Strength (0.2% Offset)** | 195 - 345 MPa | 28 - 50 ksi | | **Elongation (in 4D)** | 35 - 50% | 35 - 50% | | **Reduction of Area** | 60 - 75% | 60 - 75% | | **Hardness (Rockwell B)** | 75 - 90 HRB | 75 - 90 HRB | #### **5. International Standards for Forgings** Nickel 200 Forgings are supplied according to these international standards: | Standard Organization | Standard Number | Title / Scope | | :--- | :--- | :--- | | **ASTM International** | **ASTM B564** | Standard Specification for Nickel Alloy Forgings | | **ASME** | **SB-564** | Nickel Alloy Forgings (for BPVC) | | **ASTM International** | **ASTM B366** | Factory-Made Wrought Nickel Alloy Fittings | | **SAE Aerospace** | **AMS 5674** | Nickel Alloy Forgings | | **UNS** | **N02200** | Unified Numbering System | | **EN (Europe)** | **EN 10222-5** | Steel Forgings for Pressure Purposes | #### **6. Key Characteristics & Advantages** * **Enhanced Mechanical Properties:** The forging process refines the grain structure, resulting in improved strength, toughness, and fatigue resistance compared to cast or wrought products. * **Superior Structural Integrity:** Forgings exhibit continuous grain flow patterns that follow the component contour, providing optimal stress distribution and resistance to impact loading. * **Excellent Corrosion Resistance:** Maintains the outstanding corrosion resistance of Nickel 200 in caustic environments, reducing acids, and various chemical media. * **Directional Strength Properties:** The forging process allows for alignment of the grain structure with primary stress directions, enhancing component reliability. * **Good Machinability:** Can be precision machined to close tolerances while maintaining corrosion resistance at machined surfaces. * **Weldability:** Readily welded using GTAW (TIG) and GMAW (MIG) processes with proper procedures and Nickel 200 filler metals. #### **7. Common Forging Types** * **Open Die Forgings:** - Large shafts and rotors - Pressure vessel components - Large valve bodies - Custom-shaped components * **Closed Die Forgings:** - Pump impellers and casings - Valve trim components - Fitting blanks - Complex shaped parts * **Ring Rolled Forgings:** - Flanges and collars - Bearing races - Specialized containment rings #### **8. Product Applications** Nickel 200 Forgings serve in critical applications across various industries: * **Chemical Processing Equipment:** - Pump shafts and impellers - Valve bodies and stems - Agitator shafts and blades - Reactor internals * **Oil and Gas Industry:** - Wellhead components - Valve trims for corrosive service - Fasteners and studs - Christmas tree components * **Power Generation:** - Turbine components - Generator parts - Heat exchanger parts - Nuclear instrumentation components * **Aerospace and Defense:** - Rocket motor components - Missile parts - Aircraft engine components - Specialized fasteners * **Marine Applications:** - Propeller shafts - Submarine components - Desalination plant parts - Marine hardware --- **Disclaimer:** The technical information provided is for reference purposes. Actual properties may vary based on forging process, heat treatment, and component size. For critical applications, consult the complete material specifications, applicable design codes, and qualified engineering resources. Non-destructive testing is recommended for critical forged components.

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 1633 gallon liquid totes Special package is available on request.