Alloy 201，Nickel 201 Plate，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 Plate (UNS N02201)** #### **1. Product Overview** **Nickel 201 Plate** (commercially known as **Alloy 201 Plate**) is a low-carbon version of commercially pure nickel plate, specifically formulated for high-temperature applications where resistance to grain-boundary carbide formation is essential. With its maximum carbon content of 0.02%, this plate material delivers superior performance in continuous service temperatures exceeding **315°C (600°F)**, making it the preferred choice over Nickel 200 for elevated temperature applications. Manufactured to precise thickness tolerances and superior surface quality, Nickel 201 Plate maintains excellent corrosion resistance while providing enhanced structural stability in high-temperature environments. The material is particularly suited for fabrication into pressure vessels, heat treatment fixtures, and chemical processing equipment operating at elevated temperatures. #### **2. Chemical Composition (% Weight)** | Element | Content (%) (ASTM B162) | Content (%) (Typical) | | :--- | :--- | :--- | | **Nickel (Ni)** | 99.0 min | ≥ 99.6 | | **Carbon (C)** | **0.02 max** | **0.01** | | **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 (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 | **Elevated Temperature Properties (at 500°C/932°F):** * **Tensile Strength:** ~ 250 MPa (36 ksi) * **Yield Strength:** ~ 100 MPa (15 ksi) * **Creep Strength:** Excellent long-term performance under stress #### **5. International Standards for Plate** | 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 (for BPVC) | | **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** * **Excellent High-Temperature Stability:** Superior resistance to embrittlement at temperatures above 315°C (600°F) due to controlled low carbon content * **Outstanding Corrosion Resistance:** Excellent performance in caustic alkalis, reducing acids, and high-temperature chemical environments * **Superior Fabricability:** Can be readily formed, sheared, punched, and welded using standard techniques * **Good Weldability:** Excellent weldability using GTAW (TIG), GMAW (MIG), and SMAW processes with matching filler metals * **High Thermal Conductivity:** Efficient heat transfer capability maintained at elevated temperatures * **Excellent Surface Quality:** Available with various surface finishes suitable for high-temperature service #### **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 properties down to -196°C (-321°F) #### **8. Product Applications** **Chemical Processing Equipment:** * High-temperature reaction vessels * Pressure vessels for elevated temperature service * High-temperature evaporator and distillation columns * Caustic processing equipment operating above 315°C (600°F) **Heat Treatment Industry:** * Furnace retorts and muffles * Heat treating fixtures and baskets * High-temperature furnace components * Sintering trays and plates **Power Generation:** * High-temperature boiler components * Heat exchanger plates and baffles * High-temperature pressure vessels * Power plant structural components **Aerospace & Defense:** * Rocket engine components * High-temperature structural parts * Missile components * High-temperature instrumentation platforms **Other High-Temperature Applications:** * Glass manufacturing equipment * High-temperature electrolysis cells * Nuclear reactor components * High-temperature research equipment --- **Disclaimer:** The information provided is for technical reference. Actual properties may vary based on manufacturing process, thickness, and heat treatment. For critical high-temperature applications, consult the complete material specifications and qualified engineering resources. Performance verification at specific service temperatures is recommended for long-term 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 1642 gallon liquid totes Special package is available on request.