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Ohmalloy Material Co.,Ltd

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Good quality Bimetallic Strip for sales
Good quality Bimetallic Strip for sales
I search for Nichrome plate long time, and successfully bought it from Ohmalloy material. OHMALLOY provide real good service in alloy service and can always help me in finding the correct resistance alloy.

—— Mike Harness

OHMALLOY can provie me only 1kg Kovar alloy wire 1.0mm with short time, that is really amazing. Thanks

—— Janey

Really professional in thermocouple wire and cable, what i want just can get from OHMALLOY

—— Chris

Enamelled Constantan 0.08mm, i never expect to get only 2kg of it. But OHMALLOY supply it to me with good quality. God Jesus! Such a reliable supplier from china

—— Aaron

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Kovar 4J29 Wire Precision Alloys Wire Coil Weight 50kg , Diameter 0.05mm~10mm

China Kovar 4J29 Wire Precision Alloys Wire Coil Weight 50kg , Diameter 0.05mm~10mm supplier
Kovar 4J29 Wire Precision Alloys Wire Coil Weight 50kg , Diameter 0.05mm~10mm supplier Kovar 4J29 Wire Precision Alloys Wire Coil Weight 50kg , Diameter 0.05mm~10mm supplier

Large Image :  Kovar 4J29 Wire Precision Alloys Wire Coil Weight 50kg , Diameter 0.05mm~10mm

Product Details:

Place of Origin: China
Brand Name: OHMALLOY
Certification: ISO
Model Number: Ohmalloy-Kovar

Payment & Shipping Terms:

Minimum Order Quantity: 20kg
Price: 50~200USD/KG
Packaging Details: Wooden-Case
Payment Terms: T/T, L/C, Western Union
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Detailed Product Description
Material: Kovar Type Of Material: Precision Alloy
Diameter: 0.05mm~10mm Package: Spool&Coil
Coil Weight: Roll Common Name: FeNi29Co17

Kovar(4J29) Alloy Material Wire
Kovar/4J29/UNS K94610/W.Nr.1.3912

General Description

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

Grade C% P% S% Mn% Si% Cu% Cr% Mo% Ni% Co% Fe%
Kovar Max 0.03 Max 0.020 Max 0.020 Max 0.50 Max 0.30 Max 0.20 Max 0.20 Max 0.20 28.5-29.5 16.8-17.8 Bal.

Specifications

Grade UNS Werkstoff Nr. ASTM
Kovar K94610 1.3981 F15  

Physical Properties

Grade Density Melting Point
Kovar 8.17 g/cm3 1449°C

Mechanical Properties

Grade Tensile Strength N/mm²
Soft 1/4 Hard 1/2 Hard 3/4 Hard Full Hard
Kovar Strip <570 520-630 590-700 600-770 >700
Kovar Wire <585 585-725 655-795 725-860 >860

Coefficient of Expansion

Alloy Linear Coefficient of Thermal Expansion ā,10-6/℃
20-200℃ 20-300℃ 20-400℃ 20-450℃ 20-500℃ 20-600℃ 20-700℃ 20-800℃
Kovar 5.9 5.3 5.1 5.3 6.2 7.8 9.2 10.2

 

Kovar 4J29 Wire Precision Alloys Wire Coil Weight 50kg , Diameter 0.05mm~10mmKovar 4J29 Wire Precision Alloys Wire Coil Weight 50kg , Diameter 0.05mm~10mm

 

Contact Details
Ohmalloy Material Co.,Ltd

Contact Person: Matt

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