High-Quality Alloy K (Kovar) Sheet, Pipe, and Bar for Various Applications-Bolaibao (Suzhou) Metal Products Co., Ltd.

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Alloy K(Nilo K) Sheet/Pipe/Bar

‌‌Nilo K is a superalloy primarily used to make components that work at high temperatures. ‌
The main components of Nilo K alloy include iron, nickel and other elements, which have excellent high temperature resistance and good mechanical properties. It is often used to manufacture components that need to work at high temperatures, such as combustion chambers and turbine blades of aircraft engines. Nilo K alloy can maintain high strength and good oxidation resistance at high temperature, so it is widely used in aerospace, petrochemical and other fields ‌.

Product Details

Kovar (Alloy K) is a nickel-iron-cobalt controlled-expansion alloy containing 29% nickel. Its coefficient of expansion, which decreases with rising temperature to the inflection point, matches the expansion rate of borosilicate glasses and alumina ceramics. Kovar (Alloy K) is used for glass-to-metal seals in applications requiring high reliability or resistance to thermal shock. Kovar (Alloy K) is used for high-power transmitting valves, transistor leads and headers, integrated-circuit lead frames, and photography flash bulbs.

Kovar(Alloy K):UNS K94610,1.3981

Technical Data Sheet

Kovar Chemical Composition (Basic Density 8.36)

Weight %

Alloy K
Kovar

29.0

53.0

17.0

0.04 max

0.50 max

0.20

0.10 max

0.20 max

0.10 max

0.20 max

Typical Mechanical Properties

Material	Condition	Yield Strength (0.1% Offset)		Tensile Strength		Elongation %
		psi	MPa	psi	MPa
Alloy K Kovar	Annealed	49,000	340	75,000	520	42

Availability
Alloy K / Kovar is available in Bar, Rod, Tube, Sheet, Strip, Coil, Plate and Wire. For all stock availability contact Sales for further availability.