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1.5x0.2mm ASTM F15 Kovar Alloy Tube for Glass to Metal Seals in Electronics

Name: 1.5x0.2mm ASTM F15 Kovar Alloy Tube for Glass to Metal Seals in Electronics
Brand: Shanghai Tankii Alloy Material Co.,Ltd
SKU: Kovar
Price: 499.05 USD
Availability: InStock

Rincian Produk

Tempat asal: Shanghai, Tiongkok

Nama merek: TANKII

Sertifikasi: ISO9001

Nomor model: Kovar

Ketentuan Pembayaran & Pengiriman

Kuantitas min Order: 5kg

Harga: dapat dinegosiasikan

Kemasan rincian: Karton + Wooned Case

Waktu pengiriman: 7-20 hari

Syarat-syarat pembayaran: L/C, T/T, Western Union

Menyediakan kemampuan: 10 ton per bulan

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Spesifikasi

Deskripsi

Spesifikasi

Menyoroti: 
                                                                              1.5x0.2mm Nickel Kovar pipe, Invar Alloy 4j29 tube, ASTM F15 Nickel Iron Alloy
                                                  

Deskripsi

1.5x0.2mm ASTM F15 Kovar Alloy Tube for Glass to Metal Seals in Electronics

Kovar alloy is a vacuum melted, iron-nickel-cobalt alloy that is widely used in the electronics industry. Kovar is a nickel-iron-cobalt, controlled-expansion alloy which contains 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 has been used for making hermetic seals with the harder Pyrex glasses and ceramic materials. This alloy has found wide application in power tubes, microwave tubes, transistors, and diodes. In integrated circuits, it has been used for the flat pack and the dual-in-line package.

Chemical Composition

Grade	C%	P%	S%	Mn%	Si%	Cu%	Cr%	Mo%	Ni%	Co%	Fe%
Kovar	Max 0.03	Max 0.020	Max 0.020	Max 0.50	Max 0.30	Max 0.20	Max 0.20	Max 0.20	28.5-29.5	16.8-17.8	Bal.

Specifications

Grade	UNS	Werkstoff Nr.
Kovar	K94610	1.3981

Physical Properties

Grade	Density	Melting Point
Kovar	8.17 g/cm3	1449°C

Coefficient of Expansion

Alloy	Linear Coefficient of Thermal Expansion a,10-6/°C
Alloy	20-200°C	20-300°C	20-400°C	20-450°C	20-500°C	20-600°C	20-700°C	20-800°C
Kovar	5.9	5.3	5.1	5.3	6.2	7.8	9.2	10.2

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