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4j29 Kovar Alloy Tube Pipe 3J01 For Sealing Parts

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4j29 Kovar Alloy Tube Pipe 3J01 For Sealing Parts

Brand Name : JX

Model Number : 4j29 Kovar Alloy Tube Pipe

Certification : ISO

Place of Origin : china

MOQ : 100kgs

Price : Negotiable

Payment Terms : L/C, T/T

Supply Ability : 3000T

Delivery Time : 35days

Packaging Details : Standard wooden case

Product Type : 4j29 Kovar Alloy Tube pipe for Sealing parts

Material : Feni Alloy

Carbon Content : low

Transport Package : wooden case

Shape : round bar

Condition : soft

Surface : Bright

Origin : China

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4j29 Kovar Alloy Tube pipe for Sealing parts

Kovar Alloy Tube Pipe is a nickel-iron, low-expansion alloy containing 28.5% nickel. It has a low coefficient of expansion from cryogenic temperatures to about 260°C. In the dry air at home temperature, invar 36 has good resistance to corrosion. But in moist air, it may go corrosion.

Kovar Alloy Tube Pipe is suitable for the applications who require low coefficient of expansion, such as production, storage and transportation of liquid gas, temperature regulation devices working below 200°C, aperture mask, unit frameworks working below -200°C and so on.

Precision alloy series: 1J33,3J01,3J9,4J29,4J32.4J33,Invar36,4J45.FeNi50.

Main applications: Magnetic shunt compensatory element In the electromagnetic loop and the permanent magnetic loop.

Kovar Alloy Tube Pipe Normal composition%

Ni	28.5~29.5	Fe	Bal.	Co	16.8~17.8	Si	≤0.3
Mo	≤0.2	Cu	≤0.2	Cr	≤0.2	Mn	≤0.5
C	≤0.03	P	≤0.02	S	≤0.02

Tensile Strength, MPa

Code of condition	Condition	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

Kovar Alloy Tube Pipe Picture:
4j29 Kovar Alloy Tube Pipe 3J01 For Sealing Parts

Typical Physical properties

Density (g/cm3)	8.2
Electrical resistivity at 20ºC(Om*mm2/m)	0.48
Temperature factor of resistivity(20ºC~100ºC)X10-5/ºC	3.7~3.9
Curie point Tc/ ºC	430
Elastic Modulus, E/ Gpa	138

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