Alloy 201，Nickel 201 Sheet，UNS N02201，EFORU

British Specs:BS 3072 BS 3073 BS 3074 BS 3075 BS 3076 NA11，American Specs:ASTM B162 ASTM B163 ASTM B725 ASTM B730 AMS 5553 Sheet and Strip，German Specs:WS 2.4061 WS 2.4068

### **Technical Datasheet: Nickel 201 Sheet (UNS N02201)** #### **1. Product Overview** **Nickel 201 Sheet** (commercially known as **Alloy 201 Sheet**) is a low-carbon variant of commercially pure nickel sheet, specifically engineered for high-temperature applications where resistance to intergranular carbide precipitation is critical. With a maximum carbon content of 0.02%, this sheet material provides exceptional performance in continuous service temperatures exceeding **315°C (600°F)**, making it the superior alternative to Nickel 200 for elevated temperature applications. Supplied in various thicknesses with precise dimensional control and superior surface finishes, Nickel 201 Sheet combines excellent corrosion resistance with high thermal conductivity and maintained mechanical properties at elevated temperatures. The material is ideally suited for fabrication into high-temperature chemical processing equipment, heat treatment fixtures, and aerospace components. #### **2. Chemical Composition (% Weight)** | Element | Content (%) (ASTM B162) | Content (%) (Typical) | | :--- | :--- | :--- | | **Nickel (Ni)** | 99.0 min | ≥ 99.6 | | **Carbon (C)** | **0.02 max** | **0.008** | | **Manganese (Mn)** | 0.35 max | 0.18 | | **Iron (Fe)** | 0.40 max | 0.15 | | **Copper (Cu)** | 0.25 max | 0.10 | | **Silicon (Si)** | 0.35 max | 0.12 | | **Sulfur (S)** | 0.01 max | 0.003 | #### **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 (Typical for Annealed Condition)** | Property | Metric Unit | Imperial Unit | | :--- | :--- | :--- | | **Tensile Strength** | 380 - 480 MPa | 55 - 70 ksi | | **Yield Strength (0.2% Offset)** | 105 - 195 MPa | 15 - 28 ksi | | **Elongation (in 2 inches)** | 45 - 55% | 45 - 55% | | **Hardness (Rockwell B)** | 65 - 80 HRB | 65 - 80 HRB | **High-Temperature Mechanical Properties (at 500°C/932°F):** * **Tensile Strength:** ~ 250 MPa (36 ksi) * **Yield Strength:** ~ 100 MPa (15 ksi) * **Creep Resistance:** Excellent long-term stability under load #### **5. International Standards for Sheet** | Standard Organization | Standard Number | Title / Scope | | :--- | :--- | :--- | | **ASTM International** | **ASTM B162** | Standard Specification for Nickel Plate, Sheet, and Strip | | **ASME** | **SB-162** | Nickel Plate, Sheet, and Strip | | **ASTM International** | **ASTM B906** | General Requirements for Flat-Rolled Nickel and Nickel Alloys | | **SAE Aerospace** | **AMS 5556** | Sheet, Strip, and Plate | | **UNS** | **N02201** | Unified Numbering System | | **EN (Europe)** | **EN 10095** | Ni 99.2 (Material Number 2.4066) | #### **6. Key Characteristics & Advantages** * **Superior High-Temperature Performance:** Excellent resistance to grain-boundary embrittlement at temperatures above 315°C (600°F) * **Exceptional Corrosion Resistance:** Outstanding performance in caustic environments, reducing acids, and high-temperature chemical processes * **Excellent Formability:** Can be deep drawn, spun, stamped, and formed into complex shapes without cracking * **Good Weldability:** Readily welded using GTAW (TIG), GMAW (MIG), and resistance welding techniques * **High Thermal Conductivity:** Efficient heat transfer characteristics maintained at elevated temperatures * **Consistent Quality:** Uniform mechanical properties and dimensional accuracy throughout the sheet #### **7. Temperature Capability** * **Maximum Continuous Service:** **600°C (1112°F)** * **Intermittent Service:** Up to 815°C (1500°F) for short durations * **Cryogenic Service:** Maintains excellent ductility down to -196°C (-321°F) #### **8. Product Applications** **High-Temperature Chemical Processing:** * High-temperature reactor linings * Heat exchanger components * High-temperature evaporation dishes * Chemical processing equipment panels **Heat Treatment & Furnace Applications:** * Furnace interior panels * Heat treatment fixture components * High-temperature conveyor belts * Sintering trays and containers **Aerospace & Defense:** * Rocket engine heat shields * High-temperature structural panels * Missile component housings * Aircraft engine compartment liners **Electrical & Electronic:** * High-temperature battery components * Electronic housing for elevated temperature service * Lead frames for high-temperature applications * Electrical insulation supports **Other High-Temperature Applications:** * High-temperature gaskets and seals * Laboratory equipment for high-temperature research * High-purity processing equipment * Nuclear instrumentation components --- **Disclaimer:** The technical information provided is for reference purposes. Actual properties may vary based on manufacturing process, thickness, temper, and heat treatment. For critical high-temperature applications, consult the complete material specifications and qualified engineering resources. Performance validation at specific service conditions is recommended.

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 1643 gallon liquid totes Special package is available on request.