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4J29 Kovar FeNi29Co17 Glass Sealing Low Expansion Alloys

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4J29 Kovar FeNi29Co17 Glass Sealing Low Expansion Alloys

4J29 Kovar FeNi29Co17 Glass Sealing Low Expansion Alloys
4J29 Kovar FeNi29Co17 Glass Sealing Low Expansion Alloys 4J29 Kovar FeNi29Co17 Glass Sealing Low Expansion Alloys 4J29 Kovar FeNi29Co17 Glass Sealing Low Expansion Alloys

Large Image :  4J29 Kovar FeNi29Co17 Glass Sealing Low Expansion Alloys Get Best Price

Product Details:
Place of Origin: Jiangsu
Brand Name: OHMALLOY/OEM
Certification: ISO9001
Model Number: SP-4J29
Payment & Shipping Terms:
Minimum Order Quantity: 20KG
Price: USD18-28.5 per KG
Packaging Details: Paper carton+plywood case
Delivery Time: 5-18 working days after payment
Payment Terms: L/C, T/T
Supply Ability: 50 tons meter per month
Detailed Product Description
Name: 4J29 29HК BИ Kovar Glass Sealing Alloy Nilo K Material: FeNi29Co17
Supply Shape: Rod/Tube/Plate/Wire/Strip Other Similar Brand: 29HК BИ/Kovar/Nilok/Vacon 12/DilverP1
Average Linear Expansion Coefficient (10-6): 4.6-5.2(200-400℃) Curie Temperature: 435℃
High Light:

FeNi29Co17 Low Expansion Alloys

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4J29 glass sealing alloy

4J29 29HК BИ Kovar Glass Sealing Alloy NiloK Rod Tube Plate Wire Strip Available

 

Iron-nickel-cobalt alloy 4J29 alloy is also called Kovar alloy. 4J29 has a linear expansion coefficient close to that of silicon boron hard glass at 20 ° C to 450 ° C, which can be matched with hard glass to achieve sealing firmly. It has a high Curie point and has good low temperature tissue stability.

4J29 is mainly used for the glass sealing of electric vacuum components such as launch tubes, oscillation tubes, ignition tubes, magnetrons, transistors, sealed plugs, relays, integrated circuits, chassis, housings, brackets, etc.

 

4J29 Kovar Chemical Composition(%)

Grade C Si Mn P S Ni Co Fe Cu Cr Mo
4J29 ≤0.03 ≤0.3 ≤0.5 ≤0.02 ≤0.02 28.5-29.5 16.8-17.8 Balance ≤0. 2 ≤0. 2 ≤0. 2

 

 

 

 

When the average linear expansion coefficient reaches the standard stipulated conditions, the content of nickel and cobalt is allowed to deviate from the range specified in the table. The contents of aluminum, magnesium, zirconium and titanium are each not more than 0.10%, and the total amount should not be more than 0.20%

4J29 Kovar FeNi29Co17 Glass Sealing Low Expansion Alloys 0

 

4J29 Kovar Linear Expansion Coefficient:

Temperature Range 20~100℃ 20~300℃ 20~400℃ 20~450℃ 20~500℃ 20~600℃ 20~700℃
Average Linear Expansion Coefficient (10-6)

 

5.8

 

5.3

 

4.6-5.2

 

5.1-5.5

 

6.2

 

7.8

 

9.2

 

4J29 Kovar Physical Properties:

Density 8.17g/cm3
Curie Temp 435℃
Melting Point 1449℃
Thermal Conductivity 0.17 W/cm °C
Tensile Strength >518 MPa
Elongation >30%
Hardness >80HRB
Modulus of Elasticity 30 Mpsi

 

Supply Sate:

1. Sheet and foil (within a width of 2 meters)

Delivery status: hot rolled or cold rolled, annealed, pickled

 

2. Round plates and rings

Delivery status: hot rolled or cold rolled, annealed, pickled or machined

 

3. Wire

Delivery status: bright brushed, Hard, 1 / 4Hard, 1 / 2Hard, Soft

Specification: φ0.01-15mm, coiled, wrapped around a shaft or in roll form

 

4. Bar

Supply status: forged material, hot rolled material, cold drawn material, annealed state, pickled, machined or polished.

 

5. Forging

Delivery status: irregularly shaped forgings are provided upon request

 

6. Strip material (within 650mm, commonly used are 100mm, 150mm, 200mm, 300mm, 350mm)

Delivery status: 0.01mm-5.0mm, cold rolled, annealed, pickled or bright annealed

 

7. Flat wire, strip

 

4J29 Other Names Called International:

 

29HК / Kovar / Nilo K /  KV-1 / Dilver P0 /  Vacon 12 /  29HК-BИ / Rodar KV-2 / Techallony Glasseal 29-17 / Telcaseal KV-3 Dilver P1 / Silvar 48

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Contact Person: Claudia

Tel: +8617301606058

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