Name: 7873ebd52600fd192ac0044c76d6c375
Uploaded: 2025-03-13T02:09:42+08:00
Description: 4J36, also known as Kovar alloy, is a low-expansion alloy containing iron, nickel and cobalt. The Curie point of 4J36

4J36 Plate with Excellent Thermal Stability and Accuracy

Payment Type:L/C,T/T,Paypal

Incoterm:FOB

Transportation:Ocean,Land,Air,Express

Port:SHANGHAI

Product Attributes
Supply Ability & Additional Information
Packaging & Delivery

Product Attributes

Model No.: 4J36, UNS K93600, W.Nr.1.3912

Brand: HDF

Supply Ability & Additional Information

Packaging: STANDARD EXPORT PACKAGING

Transportation: Ocean,Land,Air,Express

Place of Origin: CHINA

Certificate: ISO9001

Port: SHANGHAI

Payment Type: L/C,T/T,Paypal

Incoterm: FOB

Packaging & Delivery

Selling Units:

Kilogram

Package Type:

STANDARD EXPORT PACKAGING

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7873ebd52600fd192ac0044c76d6c375

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3c9f7de7e34c944b2643735acd42806b

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cdff500bd931c79846e1139cf5034880

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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 approximately 230℃. Below this temperature, the alloy is ferromagnetic and has a very low expansion coefficient. Above this temperature, the alloy is non-magnetic and the expansion coefficient increases. This alloy is mainly used to manufacture components with nearly constant dimensions within the range of temperature changes and is widely used in the radio industry, precision instruments, meters and other industries.

FEATURE

● It has an extremely low coefficient of thermal expansion between -250℃ and +200℃.

● It has excellent plasticity and toughness.

CHEMICAL COMPONENT

Element	Ni	Cr	Fe	C	Mn	Si	Co	P	S
Min	35.0	-	Bal	-	0.30	-	-	-	-
Max	37.0	0.20	Bal	0.03	0.60	0.20	0.50	0.02	0.01

PHYSICAL & MECHANICAL PROPERTIES

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

APPLICATION

1. Electronic Packaging: Due to its excellent compatibility with materials such as glass and ceramics, 4J36 is widely used in areas such as integrated circuit packaging, vacuum tube casings, and optical device packaging, ensuring sealing and stability.

2. Precision Instruments: In precision measuring instruments and optical instruments, it serves as structural components and connectors, ensuring the accuracy and long-term stability of the instruments.

3. Aerospace: In high-tech products such as spacecraft and satellites, it is used in thermal control systems and sensor packaging, withstanding extreme temperature changes without deformation.

4. Other Fields: It also includes specific applications in vacuum electronic devices, nuclear reactor components, and medical electronic equipment.