4J29 Kovar Alloy Bar for Glass to Metal Sealing with Controlled Thermal Expansion in Precision Electronic Applications

원래 장소	중국
브랜드 이름	HUONA
인증	ISO9001
모델 번호	막대
최소 주문 수량	1
가격	NEGOTATION
포장 세부 사항	판지 또는 나무 상자에 있는 표준 수출 포장; 요청 시 맞춤형 포장 가능
배달 시간	사양 및 수량에 따라 10~25일
지불 조건	티/티
공급 능력	월 5,000 – 10,000개(주문에 따라 조정 가능)

제품 상세 정보

제품	4J29 코바르 합금 바	합금 종류	Fe Ni Co 유리 밀봉 합금
모양	둥근 봉 로드	지름	3mm ~ 100mm 맞춤형 가능
길이	500mm 1000mm 2000mm 맞춤형	밀도	cm3당 8.2g
열 팽창 계수	C당 4.6 ~ 5.2 x10 -6	용융 범위	1450~1490℃
포장	나무로 되는 케이스 판지 수출 패킹
강조하다	Glass to Metal Sealing Kovar Alloy Bar , Controlled Thermal Expansion Kovar Alloy Rod , Precision Electronic Applications Iron Nickel Cobalt Alloy Bar

메시지를 남겨주세요

제품 설명

4J29 Kovar alloy bar is a precision iron nickel cobalt alloy containing controlled thermal expansion characteristics.
It is widely used for glass to metal sealing applications due to its thermal expansion coefficient closely matching borosilicate glass and ceramics.

The alloy provides stable dimensional performance under temperature changes and is commonly used in electronic vacuum devices and precision sealing structures.

Key Features

Controlled low thermal expansion alloy
Excellent glass to metal sealing performance
Stable mechanical properties under temperature variation
Good machinability and dimensional stability
Suitable for precision electronic and vacuum applications

Typical Chemical Composition

Element	Content
Fe	Balance
Ni	28 to 30 percent
Co	16 to 17 percent
Mn	less than 0.5 percent
Si	less than 0.3 percent
C	less than 0.03 percent

Technical Specifications

Item	Specification
Product	4J29 Kovar Alloy Bar
Alloy Type	Fe Ni Co Glass Sealing Alloy
Shape	Round Bar Rod
Diameter	3 mm to 100 mm Customizable
Length	500 mm 1000 mm 2000 mm Customizable
Density	8.2 g per cm3
Thermal Expansion Coefficient	4.6 to 5.2 x10 minus6 per C
Melting Range	1450 to 1490 C
Surface Finish	Bright Black or Polished
Packaging	Wooden case carton export packing
MOQ	Negotiable

Applications

Glass to metal sealing components
Electronic vacuum devices
Transistor and semiconductor packaging
Aerospace precision components
Relay and sensor housings
Instrumentation and control systems

Advantages

Excellent thermal expansion matching with glass
High sealing reliability and stability
Good machinability and formability
Stable performance under thermal cycling
Suitable for precision electronic applications

Supply and Delivery

Supply Capacity
5000 to 8000 kg per month depending on specification

Lead Time
10 to 20 days depending on quantity

Packaging
Standard export wooden case or carton
Custom packaging available upon request

Inquiry Guidance

Please advise required diameter length surface condition and application environment. We will recommend the most suitable 4J29 Kovar alloy bar specification for your project.

꼬리표: