Name: 1c5803a36803281fb3fdac2193bfb811
Uploaded: 2025-02-28T00:13:40+08:00
Description: 4J36, also known as Kovar alloy, is a low-expansion alloy containing iron, nickel, and cobalt. The Curie point of

4J36 Kovar alloy wire W. Nr.1.3912.UNS K93600

Payment Type:L/C,T/T,D/P,D/A,Paypal

Incoterm:FOB,CIF,EXW,FCA

Transportation:Ocean,Land,Air,Express

Port:SHANGHAI

Product Attributes
Supply Ability & Additional Information
Packaging & Delivery
Other information

Product Attributes

Model No.: Fe-Ni36 、W. Nr.1.3912、Ni36 、X1NiCrMoCu、N 25-20-7 、4J36、UNS K93600

Brand: Jiangsu Xinhua

Place Of Origin: China

Species: Nickel Wire

Whether Powder: Not Powder

Supply Ability & Additional Information

Packaging: standard export packing, plastic film inside, wooden pallets outside , choose the suitable packing

Productivity: 20 Metric Tons per month

Transportation: Ocean,Land,Air,Express

Place of Origin: China

Supply Ability: 20 Metric Tons per month

Certificate: ISO9000

Port: SHANGHAI

Payment Type: L/C,T/T,D/P,D/A,Paypal

Incoterm: FOB,CIF,EXW,FCA

Packaging & Delivery

Selling Units:

Kilogram

Package Type:

standard export packing, plastic film inside, wooden pallets outside , choose the suitable packing

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1c5803a36803281fb3fdac2193bfb811

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3c9f7de7e34c944b2643735acd42806b

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4J36, also known as Kovar alloy, is a low-expansion alloy containing iron, nickel, and cobalt. The Curie point of 4J36 expansion alloy is about 230℃, below this temperature, the alloy is ferromagnetic, with a very low expansion coefficient, higher than this temperature, the alloy is non-magnetic, and the expansion coefficient increases. The alloy is mainly used to manufacture components of approximately constant size in the range of temperature change, and is widely used in the radio industry, precision instruments, meters and other industries.

FEATURE

It has a very low coefficient of thermal expansion between -250℃ and +200℃.
Very good plasticity and toughness.

CHEMICAL COMPONENT

Element	Ni	Cr	Fe	C	Mn	Si	Co	P	S
Min	35	-	-	-	0.30	-	-	-	-
Max	37	0.20	Bal	0.03	0.60	0.20	0.50	0.02	0.01

PHYSICAL&YIELD PROPERTIES

Density	Melting	Curie point	Tensile strength	Yield strength	Elongation
8.1g/cm³	1430°C	230°C	490-680MPa	≥240MPa	25%-35%

APPLICATION AREA

Electronic packaging: Due to its good match with glass, ceramics and other materials, 4J36 is widely used in integrated circuit packaging, vacuum tube shell, photoelectric device packaging and other fields to ensure sealing and stability.
Precision instruments: In precision measuring instruments and optical instruments, as structural parts and connecting parts, to ensure the accuracy and long-term stability of the instrument.
Aerospace: In spacecraft, satellites and other high-tech products, used in thermal control systems, sensor packages, etc., to withstand extreme temperature changes without deformation.
Other areas: Specific applications in vacuum electronics, nuclear reactor components, medical electronics.