Shanghai Phoenix Alloy Co.,Ltd

Date: 4th November 2016
W.Nr 1.3981 UNS K94610 ASTM F15 Special Super Alloy Nickel Based Alloy Precision Alloy 4J29 Kovar Wire / Strip / Coil Strip / Sheet/ Bar/ Plate/ Pipe/ Tube/ Forging / Machined Parts / Welding Wire / Welding Strip
Kovar?alloy is a iron-nickel-cobalt, low expansion alloy whose chemical composition is controlled within narrow limits to assure precise uniform thermal expansion properties. Kovar alloy has been used for making hermetic seals with the harder Pyrex glasses and ceramic materials.Kovar 4J29 SpecificationGradeASTMUNSW.NrKovar 4J29F15K946101.3981Kovar 4J29Chemical compositionGrade%NiCrFeCoCuCMnSiPSMoKovar ? ? ?4J29Min28.5Bal.16.8Max29.50.217.80.200.030.500.300.020.020.20Kovar 4J29?Coefficient of linear expansionGradea/10-6?K-1Kovar ? ? ?4J29200-300?20-400?20-450?/4.6-5.25.1-5.5Kovar4J29 Size Range Wire: Dia 0.08-12mm Bar: Dia1.0-300mm Strip(Coil): 0.2-20mm TCK x 10-300mm W Sheet: min.0.7mm TCK x 1200mm W max. Tube & Forging & Machine Parts: customized Welding wire: 0.8mm,1.0mm,1.2mm,2.0mm,2.4mm,3.2mm,3.8mm,4.0mm etc Welding Strip: 0.4-0.7mm TCK x 25-60mm W?
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