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Steel Grade: 4J28
Place of Origin: Baoji, China (Mainland)
Model Number: 4J28
Technique: Hot Rolled
Alloy Or Not: Is Alloy
Special Use: Mold Steel
Type: Alloy Steel Bar
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Packaging & Delivery
Packaging Details:
factory packaging
Delivery Detail:
4weeks
Product Description
Specifications
Precision Alloy 4J28:
1.glass-to-metal sealing
2.iron-chromium alloy
3.nominally 28 % chromium
The application of Precision Alloy 4J28: It is applied to seal the equipment of the electric component with the soft glass.
Glass sealed and controlled expansion alloys *Alloy 27,ASTM F-256,UNS K92801,(Fe-28Cr),Chinese 4J28
Note: Glass Sealing "27" Alloy,it's glass-to-metal sealing and iron-chromium alloy.Nominally 28 % chromium, in strip, bar, wire, and rod forms intended primarily for sealing to glass in electronic applications.UNS K92801 should only be considered for use at service temperatures below 300°C. The alloy is prone to sigma phase formation at temperatures close to 620°C, and exhibits brittle mechanical behavior after prolonged exposures at temperatures close to 475°C.
Grade and Chemical Composition
|
Grade |
Chemical Composition (%) | ||||||||
|
C |
P |
S |
Mn |
Si |
Ni |
N |
Cr |
Fe | |
|
≤ | |||||||||
|
4J28 |
0.12 |
0.02 |
0.02 |
1.00 |
0.70 |
0.50 |
0.20 |
27.0~29.0 |
Balance |