JINXING MATECH CO LTD
| Payment Terms | L/C, T/T |
| Supply Ability | 3000T |
| Delivery Time | 35days |
| Packaging Details | Standard wooden case |
| Product Type | Kovar Alloy Round Bar 4j29 Expansion Soft Alloy |
| Material | Feni Alloy |
| Carbon Content | low |
| Transport Package | wooden case |
| Shape | round bar |
| Condition | soft |
| Surface | Bright |
| Origin | China |
| Brand Name | JX |
| Model Number | 4j29 Kovar Alloy Round Bar |
| Certification | ISO |
| Place of Origin | china |
View Detail Information
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Product Specification
| Payment Terms | L/C, T/T | Supply Ability | 3000T |
| Delivery Time | 35days | Packaging Details | Standard wooden case |
| Product Type | Kovar Alloy Round Bar 4j29 Expansion Soft Alloy | Material | Feni Alloy |
| Carbon Content | low | Transport Package | wooden case |
| Shape | round bar | Condition | soft |
| Surface | Bright | Origin | China |
| Brand Name | JX | Model Number | 4j29 Kovar Alloy Round Bar |
| Certification | ISO | Place of Origin | china |
| High Light | Kovar Alloy Round Bar ，4j29 Alloy Round Bar ，Expansion Soft Kovar Alloy Bar | ||
Technical standard
YB/T 5231-1993 "Fe-Ni-Co glass sealing alloy 4J29 and 4J44 technical conditions".
Kovar Alloy Round Bar Chemical Composition in % Kovar
Ni 28,5-29,5% | Fe 51,14-54,5% | C 0.03% | Si 0.3% | Mn 0,4 % | S o 0.015% |
P 0.015% | o 17-18% | Ti 0.1% | Al 0.2% | Cu 0.2% | Cr 0,1 % |
Kovar Alloy Round Bar Picture:
Heat treatment system
The performance test samples for the expansion coefficient and low temperature microstructure stability specified in the standard are heated to 900ºC±20ºC in a hydrogen atmosphere, kept for 1h, then heated to 1100ºC±20ºC, and kept for 15min, at a temperature of not more than 5ºC/min The speed is cooled to below 200 ºC.
Application overview
The alloy is a typical Fe-Ni-Co hard glass sealing alloy commonly used in the world. It has been used for a long time in the aviation factory with stable performance. It is mainly used for glass sealing of electric vacuum components such as launch tubes, oscillator tubes, ignition tubes, magnetrons, transistors, sealed plugs, relays, integrated circuit lead wires, chassis, shells, brackets, etc. In the application, the selected glass should be matched with the expansion coefficient of the alloy. Strictly test its low temperature tissue stability according to the use temperature. Appropriate heat treatment should be carried out during processing to ensure that the material has good deep drawing properties. When using forgings, their air tightness should be strictly checked.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer,Exporter,Seller,Other
Year Established:
2007
Total Annual:
5,000,000-10,000,000
Employee Number:
10~25
Ecer Certification：
Site Member
JINXING MATECH is a research and development, production, processing and sales of integrated, comprehensive refractory metal, precious metal material manufacturer.JINXING MATECH is an expert provider on the metal solution. Especially on the products such as Tungsten , Tungsten copper , Titanium ... JINXING MATECH is a research and development, production, processing and sales of integrated, comprehensive refractory metal, precious metal material manufacturer.JINXING MATECH is an expert provider on the metal solution. Especially on the products such as Tungsten , Tungsten copper , Titanium ...
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