Nickel and nickel alloys · Alloy 200 / Nickel 200 / UNS N02200 / 2.4066

Nickel 200 Alloy (UNS N02200): Engineering and Technical Reference on Properties and Applications

Engineering Specifications and Assortment of Nickel 200 Alloy

Product TypesMaterial MarkingKey SpecificationsKey SpecificationsDINBSISO
Sheet, plate, strip, round bar, flat bar, hexagonal bar, tubular products, forgingsAlloy 200, Nickel 200, Ni200, Nickel 99.2, VDM Nickel 200, UNS N02200ASTMASMEInternational EquivalentsInternational Equivalents
Sheet, plate, strip, round bar, flat bar, hexagonal bar, tubular products, forgingsAlloy 200, Nickel 200, Ni200, Nickel 99.2, VDM Nickel 200, UNS N02200B 160, B 161, B 162, B 163, B 366, B 564, B 725, B 730, B 751, B 775, B 924SB 160, SB 161, SB 162, SB 163, SB 366, SB 564, SB 751W.Nr.Ni 99.2 (17740, 17750-17754)NA 11 (3072, 3073, 3074, 3075, 3076)6207, 6208, 9723-9725
Sheet, plate, strip, round bar, flat bar, hexagonal bar, tubular products, forgingsAlloy 200, Nickel 200, Ni200, Nickel 99.2, VDM Nickel 200, UNS N02200B 160, B 161, B 162, B 163, B 366, B 564, B 725, B 730, B 751, B 775, B 924SB 160, SB 161, SB 162, SB 163, SB 366, SB 564, SB 7512.4060, 2.4066Ni 99.2 (17740, 17750-17754)NA 11 (3072, 3073, 3074, 3075, 3076)6207, 6208, 9723-9725
2.4060, 2.4066

Nickel 200 (UNS N02200) is a commercially pure wrought nickel with a minimum Ni content of 99.2%. This material demonstrates a unique combination of high corrosion resistance, especially in alkaline environments, excellent electrical and thermal conductivity, as well as stable magnetostrictive characteristics. Its outstanding ductility is maintained over a wide range of temperatures, from cryogenic to moderately elevated.

Normalized Chemical Composition of Alloy 200 (UNS N02200), %

Ni≥99.0
Cu≤0.25
Mn≤0.35
C≤0.15
Si≤0.35
S≤0.01
Fe≤0.40

Mechanical Properties of Annealed Nickel 200 Products

Tensile StrengthYield Strength (0.2% offset)Elongation
67 ksi21.5 ksi47%
462 MPa148 MPa47%

Nickel 200 alloy retains high ductility and strength down to cryogenic temperatures. It exhibits exceptional inertness to aggressive alkaline media, including concentrated caustic soda solutions, as well as to halogens and organic acids. A key operational limitation is temperature: prolonged operation above 315°C (600°F) may lead to intergranular embrittlement due to graphitization, which is critical for product longevity. The modulus of elasticity and the coefficient of thermal expansion (with a Curie point around 360°C) depend on prior heat treatment.

Physical and Thermal Constants of UNS N02200 Material

DensityMelting RangeSpecific HeatCurie TemperatureModulus of ElasticityThermal ConductivityElectrical Resistivity
8.89 g/cm³2615-2635 °F0.109 Btu/lb*°F680 °F205 kN/mm²487 Btu*in/ft²*h*°F58 ohm*circ mil/ft
8.89 g/cm³1435-1446 °С456 J/kg*°С360 °С205 kN/mm²70.2 W/m*°С0.096 µohm*m

Corrosion Resistance and Welding Technology

The material exhibits excellent resistance in reducing conditions. It is practically inert in neutral and alkaline salt solutions, making it indispensable for handling caustic soda. Welding is performed using standard methods (TIG, MIG, MMA). To prevent intergranular corrosion in the weld seam and maintain ductility, it is necessary to use welding materials with low carbon content, such as ERNi-1 filler wire or ENi-1 electrodes.

Key Application Areas

Thanks to its unique properties, Nickel 200 from EV Group China is an optimal choice for operations in concentrated alkalis, in the production of fluorine-containing compounds, and for equipment in the food industry where product purity is of paramount importance. Key supply areas for EV Group China include:

  • Reactor components for the synthesis of vinyl chloride monomer and phenol processing.
  • Heat exchangers operating in seawater and salt solutions.
  • Evaporators and pipelines in concentrated caustic soda production lines.
  • Equipment components for the production and transportation of fluorine and hydrogen fluoride.