Special Metals Nickel 222

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Special Metals Nickel 222 (discontinued **)
Categories:	Metal; Nonferrous Metal; Nickel Alloy; Pure Element
Material Notes:	Wrought nickel with an addition of magnesium for electronic applications. The magnesium provides activation for cathodes of thermionic devices. Used for sleeves of indirectly heated oxide-coated cathodes. Ferromagnetic. Standard product forms are strip, tube, and wire. Data provided by the manufacturer, Special Metals.
Key Words:	ASTM F 239; BS 3504; DIN 17740; Werkstoff Nr. 2.4053, Nickel, Ni
Vendors:	Visit metalmen for your metals needs. Products include special chemistry, tight tolerances, custom tempers, odd dimensions/forms, and small quantities. Phone 1-800-767-9494. Click here to view all available suppliers for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
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Physical Properties	Original Value	Comments

Density	8.89 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Brinell	100	Estimated from Vickers.
Hardness, Rockwell B	54	Estimated from Vickers.
Hardness, Vickers	100	Annealed
Tensile Strength, Ultimate	380 MPa	Annealed

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.00000880 ohm-cm

Thermal Properties	Original Value	Comments
CTE, linear	13.3 µm/m-°C @Temperature 20.0 - 100 °C
Specific Heat Capacity	0.460 J/g-°C
Thermal Conductivity	75.0 W/m-K
Melting Point	1435 - 1446 °C
Solidus	1435 °C
Liquidus	1446 °C

Component Elements Properties	Original Value	Comments
Copper, Cu	<= 0.10 %
Iron, Fe	<= 0.10 %
Magnesium, Mg	0.010 - 0.10 %
Manganese, Mn	<= 0.30 %
Nickel, Ni	>= 99 %	Including Cobalt
Silicon, Si	<= 0.10 %
Sulfur, S	<= 0.0080 %
Titanium, Ti	<= 0.0050 %

**
Materials flagged as discontinued () are no longer part of the manufacturer’s standard product line according to our latest information. These materials may be available by special order, in distribution inventory, or reinstated as an active product. Data sheets from materials that are no longer available remain in MatWeb to assist users in finding replacement materials.

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NINC04 / 17391

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