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Expansion Precision Alloys 4J29 Ni29Co18 UNS K94610 Electric Vacuum Kovar Strip Tube

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Good quality Bimetallic Strip for sales
Good quality Bimetallic Strip for sales
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OHMALLOY can provie me only 1kg Kovar alloy wire 1.0mm with short time, that is really amazing. Thanks

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Expansion Precision Alloys 4J29 Ni29Co18 UNS K94610 Electric Vacuum Kovar Strip Tube

China Expansion Precision Alloys 4J29 Ni29Co18 UNS K94610 Electric Vacuum Kovar Strip Tube supplier
Expansion Precision Alloys 4J29 Ni29Co18 UNS K94610 Electric Vacuum Kovar Strip Tube supplier Expansion Precision Alloys 4J29 Ni29Co18 UNS K94610 Electric Vacuum Kovar Strip Tube supplier Expansion Precision Alloys 4J29 Ni29Co18 UNS K94610 Electric Vacuum Kovar Strip Tube supplier

Large Image :  Expansion Precision Alloys 4J29 Ni29Co18 UNS K94610 Electric Vacuum Kovar Strip Tube

Product Details:

Place of Origin: China
Brand Name: OHMALLOY/OEM
Certification: Rohs/CE/SGS
Model Number: SP-OHMALLOY-4J29

Payment & Shipping Terms:

Minimum Order Quantity: 50KG
Packaging Details: Plywood case
Delivery Time: 5-8 working days after payment confirm
Payment Terms: L/C, T/T, Western Union, MoneyGram,Paypal
Supply Ability: 30 tons per month
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Detailed Product Description
Name: Expansion Precision Alloy 4J29 (Ni29Co18) UNS K94610 Electric Vacuum Kovar Strip Tube Bar Wire Plate Material Shape: Bar/Strip/Plate/Tube(Customized)
Content: Ni29Co18 Application: Matching And Sealing With The Hard Glass/Electric Vacuum
State: Soft/ 1/2 Hard/ Hard(Customized) Feature: Low Coeffficient Of Expansion

Expansion Precision Alloy 4J29 (Ni29Co18) UNS K94610 Electric Vacuum Kovar Strip Tube Bar Wire Plate

 

OhmAlloy-4J29 (Expansion alloy)
(Common Name: Kovar, Nilo K, KV-1, Dilver Po, Vacon 12)
OhmAlloy-4J29 also known as Kovar alloy. it was invented to meet the need for a reliable glass-to-metal seal, which is required in electronic devices such as light bulbs, vacuum tubes, cathode ray tubes, and in vacuum systems in chemistry and other scientific research. Most metals cannot seal to glass because their coefficient of thermal expansion is not the same as glass, so as the joint cools after fabrication the stresses due to the differential expansion rates of the glass and metal cause the joint to crack.


Mainly used in electric vacuum components and emission control, shock tube, igniting tube, glass magnetron, transistors, seal plug, relay, integrated circuits lead, chassis, brackets and other housing sealing.

 

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Expansion Precision Alloys 4J29 Ni29Co18 UNS K94610 Electric Vacuum Kovar Strip Tube

 

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.
Kovar K94610 1.3981

 

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 a,10-6/°C
20-200°C 20-300°C 20-400°C 20-450°C 20-500°C 20-600°C 20-700°C 20-800°C
Kovar 5.9 5.3 5.1 5.3 6.2 7.8 9.2

10.2

 

 

Package

Expansion Precision Alloys 4J29 Ni29Co18 UNS K94610 Electric Vacuum Kovar Strip Tube

 

Contact Details
Ohmalloy Material Co.,Ltd

Contact Person: Sparrow

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