Project Description
FeNiCo Ceramic Sealing Alloy
Alloy
4J33, 4J34
Specification
YB/T 5234-93
Product Forms
Sheet, Strip, Plate, Round Bar, Flat Bar, Forgings, Hexagon, Wire
Chemical Composition, %
Alloy | C | Mn | Si | P | S | Ni | Co | Fe |
---|---|---|---|---|---|---|---|---|
4J33 | ≤0.05 | ≤0.5 | ≤0.3 | ≤0.02 | ≤0.02 | 32.1-33.6 | 14.0-15.2 | Rest |
4J34 | ≤0.05 | ≤0.5 | ≤0.3 | ≤0.02 | ≤0.02 | 28.5-29.5 | 19.5-20.5 | Rest |
Average Linear Expansion Coefficient
Alloy | Heat treatment for sample | Average linear expansion coefficient a/10-6.K-1 | ||
---|---|---|---|---|
20~400℃ | 20~500℃ | 20~600℃ | ||
4J33 | Heating to temperature between 900℃±20℃ in a protective or vacuum atmosphere. Holding for 1hour, cooling to 200℃ at a rate less than 5℃ per min, then air cooling | 6.0~6.8 | 6.6~7.4 | – |
4J34 | 6.3~7.1 | – | 7.8~8.5 |
Feature
FeNiCo Ceramic Sealing Alloys are usually applied for match sealing electronic apparatus in ceramic 95% Al2O3.
Application
FeNiCo Ceramic Sealing Alloys are usually applied for match sealing electronic apparatus in ceramic 95% Al2O3.