ASTM F15 Kovar Invar Alloy Strip Foil Sheet 4j29 Expansion AlloyKovar Invar Alloy Strip DescriptionAlloy-4J29 (Expansion alloy)
(Common Name: Kovar, Nilo K, KV-1, Dilver Po, Vacon
12)OhmAlloy-4J29 also known as Kovar alloy. it was invented to meet
the need for a reliable glass-to-metal seal, which is required in
electronic devices such as light bulbs, vacuum tubes, cathode ray
tubes, and in vacuum systems in chemistry and other scientific
research. Most metals cannot seal to glass because their
coefficient of thermal expansion is not the same as glass, so as
the joint cools after fabrication the stresses due to the
differential expansion rates of the glass and metal cause the joint
to crack. Kovar Invar Alloy Strip Specification | Name | FeNi36 alloy 4j36 Invar 0.05-3mm nickel iron alloy strip foil sheet | | Standard | ASTM B906 | | Certification | IOS9001:2015,ISO/TS 16949:2009 | | Wall thickness | 0.05-3.0mm | | width | 5.0-420mm | | Grade | 4j36 Invar36 FeNi36 | | Application | | | Delivery time | Within 25 days after receiving deposit | | Payment term | T/T,L/C | | Supply ability | 80tons per month | | Packing | Export standard package with polywood case or ISPM 15 stamped
wooden case | | Application: | 4J36 is a special low expansion iron-nickel alloy with ultra-low
expansion coefficient. The control of carbon and manganese
components is very important. Cold deformation can reduce the
coefficient of thermal expansion, and heat treatment in a specific
temperature range can stabilize the coefficient of thermal
expansion. Low expansion alloy 4J36 has a low expansion coefficient
and good plasticity within the atmospheric temperature variation of
-60-80 degrees, which is used to make components with a size close
to constant within the temperature variation range, widely used in
radio, precision instrument, instrument and other industries,
making standard measuring tools, microwave resonant cavity,
bimetallic wave layer and other application scope: thermostat, 5G
filter, OLED screen, LNG ship |
Kovar Invar Alloy Strip Picture:
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