Alloy 200,Nickel 200,UNS N02200,EFORU

Product Introduction: Alloy 200 / Nickel 200 (UNS N02200)**Overview** Alloy 200, commercially known as Nickel 200, is a wrought, commercially pure nickel (99.6% minimum) material designated by the Unified Numbering System as UNS N02200. It is characterized by its outstanding combination of mechanical properties, excellent corrosion resistance, and high thermal and electrical conductivity. This alloy exhibits good performance in a wide temperature range, from cryogenic to elevated temperatures. However, for service temperatures above 315°C (600°F), the low-carbon version, Alloy 201 (UNS N02201), is recommended to prevent embrittlement. **Key Characteristics** - Excellent corrosion resistance to a wide range of reducing and caustic environments. - High thermal and electrical conductivity. - Good mechanical properties and ductility. - Essentially non-magnetic. - Low gas content, making it suitable for electronic applications. **Chemical Composition (%, ASTM Specification)** The chemical composition of Nickel 200 is critical to its performance. The standard composition is listed below. 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 **Physical Properties** Property | Value ---|--- Density | 8.89 g/cm³ (0.321 lb/in³) Melting Point | 1435-1446 °C (2615-2635 °F) Coefficient of Thermal Expansion | 13.3 µm/m·°C (20-100°C) Thermal Conductivity | 70 W/m·K (at 100°C) Electrical Resistivity | 0.095 µΩ·m (at 20°C) Magnetic Permeability | < 1.05 (essentially non-magnetic) **Mechanical Properties (Typical Annealed Condition)** The mechanical properties can vary with the form and temper of the product. The following values are typical for material in the annealed condition. Property | Value ---|--- Tensile Strength | 462 MPa (67 ksi) Yield Strength (0.2% Offset) | 148 MPa (21 ksi) Elongation (in 2 inches) | 50% Hardness (Rockwell B) | 65 HRB **Product Forms and Applications** Nickel 200 is available in a variety of forms including plate, sheet, strip, bar, wire, tube, pipe, and fittings. **Typical Applications:** 1. **Chemical and Process Industries:** Equipment for handling caustic soda (sodium hydroxide); reaction vessels, distillation columns, and piping for organic chloride processes; tanks for storing chemicals like fluorine and bromine. 2. **Food and Pharmaceutical Processing:** Equipment for handling fatty acids, oleomargarine, and other food-related chemicals where product purity is essential, as nickel does not impart taste or color. 3. **Electronics and Aerospace:** Electronic components such as electron tubes, radar components, and aerospace parts requiring high reliability and performance under specific conditions. 4. **Other Applications:** Heat exchangers for corrosive service, synthetic fiber production spinnerets, and equipment for the manufacture of synthetic rubber. **Important Note on Temperature Limitation** While Nickel 200 is versatile, its carbon content (0.15% max) makes it susceptible to graphitization and embrittlement when exposed to temperatures above 315°C (600°F) for prolonged periods. For applications involving continuous exposure within the temperature range of 315°C to 650°C (600°F to 1200°F), **Alloy 201 (UNS N02201)**, which has a maximum carbon content of 0.02%, is the strongly recommended and preferred material. **Summary** In summary, Alloy 200 (Nickel 200, UNS N02200) is a fundamental, high-performance nickel alloy valued for its excellent corrosion resistance, particularly in caustic environments, and its useful physical properties. It is a critical material for demanding applications across the chemical processing, food, electronics, and aerospace industries.

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 1624 gallon liquid totes Special package is available on request.