Sign In | Join Free | My benadorassociates.com
benadorassociates.com
Products
Search by Category
Home > Nickel >

4j29 Kovar Precision Alloy Tube For Glass Plastic Seals

Categories Nickel Based Alloys
Brand Name: JX
Model Number: 4j29 Kovar Precision Alloy Tube
Certification: ISO
Place of Origin: china
MOQ: 100kgs
Price: Negotiable
Payment Terms: L/C, T/T
Supply Ability: 3000T
Delivery Time: 35days
Packaging Details: Standard wooden case
Product Type: 4j29 Kovar Precision Alloy tube for Glass Plastic Seals
Material: Feni Alloy
Carbon Content: low
Transport Package: wooden case
Shape: round bar
Condition: soft
Surface: Bright
Origin: China
  • Haven't found right suppliers
  • Our buyer assistants can help you find the most suitable, 100% reliable suppliers from China.
  • And this service is free of charge.
  • we have buyer assistants who speak English, French, Spanish......and we are ready to help you anytime!
Submit Buying Request
  • Product Details
  • Company Profile

4j29 Kovar Precision Alloy Tube For Glass Plastic Seals

4j29 Kovar Precision Alloy tube for Glass Plastic Seals

Product Description

Kovar Precision Alloy tube Description
Kovar Tube is a nominal 29%NiCoFe alloy that is a well-known glass-sealing alloy suitable for sealing to hard glasses.
(Common Name: Kovar, NiFeCo29, NiCoFe294,Nilo K)

Kovar Precision Alloy tube Chemical Domposition

alloyCMnSiPSNiCrCoCuMoFe
4J29≤0.03≤0.50≤0.30≤0.020≤0.02028.5~29.5≤0.2016.8~17.8≤0.2≤0.2

balance


Controlled Expansion and Glass Sealing Alloys
German standard numberTradenameDINUNS
1.2937Alloy 2917745K92900
1.3917Alloy 4217745K94100
1.3922Alloy 4817745K94800
1.3981Pernifer291817745K94610
2.4478NiFe 4717745N14052
2.4486NiFe47Cr17745-

Typical Physical properties

Density (g/cm3)8.2
Electrical resistivity at 20ºC(OMmm2/m)0.48
Temperature factor of resistivity(20ºC~100ºC)X10-5/ºC3.7~3.9
Curie point Tc/ ºC430
Elastic Modulus, E/ Gpa138

Tensile Strength, MPa

Code of conditionConditionWireStrip
RSoft≤585≤570
1/4I1/4 Hard585~725520~630
1/2I1/2 Hard655~795590~700
3/4I3/4 Hard725~860600~770
IHard≥850≥700

Kovar Tube Picture:

The heat treatment process

Annealing for stress reliefHeated to 470~540ºC and hold 1~2 h. Cold down
annealingIn vacuum heated to 750~900ºC
Holding time14 min~1h.
Cooling rateNo more than 10 ºC/min cooled to 200 ºC

Coefficient of expansion

θ/ºCα1/10-6ºC-1θ/ºCα1/10-6ºC-1
20~607.820~5006.2
20~1006.420~5507.1
20~2005.920~6007.8
20~3005.320~7009.2
20~4005.120~80010.2
20~4505.320~90011.4
Buy 4j29 Kovar Precision Alloy Tube For Glass Plastic Seals at wholesale prices
Send your message to this supplier
 
*From:
*To: JINXING MATECH CO LTD
*Subject:
*Message:
Characters Remaining: (0/3000)
 
Inquiry Cart 0