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Shanghai Tankii Alloy Material Co.,Ltd
Shanghai Tankii Alloy Material Co.,Ltd
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Produk

0.3mm Min. OD Bright Surface Kovar Alloy Tube for Glass-Sealing Applications

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

Dapatkan Harga Terbaik
Hubungi sekarang
Spesifikasi
Menyoroti:

FeNi Kovar alloy seamless tube

,

Nickel alloy 4j29 pipe

,

Iron Nickel alloy precision tube

Bahan:
Tabung Paduan Kobalt Besi Nikel
OD:
Minimal 0,3 mm.
WT:
menit 0,01 mm.
Panjang:
Minimal 0,3 mm.
Permukaan:
Permukaan terang
Mencicipi:
menerima pesanan kecil
Bahan:
Tabung Paduan Kobalt Besi Nikel
OD:
Minimal 0,3 mm.
WT:
menit 0,01 mm.
Panjang:
Minimal 0,3 mm.
Permukaan:
Permukaan terang
Mencicipi:
menerima pesanan kecil
Deskripsi
0.3mm Min. OD Bright Surface Kovar Alloy Tube for Glass-Sealing Applications

Kovar is a nominal 29%Ni-17%Co-54%Fe alloy that is a well-known glass-sealing alloy suitable for sealing to hard glasses. Kovar has a nominal expansion coefficient of approximately 5 ppm/°C and inflection temperature of ~450 °C (840 °F).

Kovar (ASTM F15) 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 in % Kovar


Ni
28,5-29,5%

Fe
51,14-54,5%

C
0.03%

Si
0.3%

Mn
0,4 %

S
o 0.015%

P
0.015%

Co
17-18%

Ti
0.1%

Al
0.2%

Cu
0.2%

Cr
0,1 %

 

Kovar Physical properties
Density (g/cm3)
Resistivity at 20℃(Ωmm2/m)
Temperature Coefficient of Resistance
(20℃~100℃)X10-5/℃
Curie point
(Tc/ ℃)
Elastic Modulus
(E/ Gpa)
8.2
0.48
3.7~3.9
430
138
Kovar Tensile strength, MPa
Status number
State
Wire
Strip
R
Soft
≤585
≤570
1/4I
1/4 Hard
585~725
520~630
1/2I
1/2 Hard
655~795
590~700
3/4I
3/4 Hard
725~860
600~770
I
Hard
≥850
≥700
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