Bright Kovar 4j29 Strip for Stamping IC Framework
China Bright Kovar 4j29 Strip for Stamping IC Framework, Find details about China Kovar Strip, 4j29 Strip from Bright Kovar 4j29 Strip for Stamping IC Framework
Basic Info.
Model NO.
4j29 Strip
Thickness
0.1-2mm
Width
5-280mm
MOQ
30 Kgs
Trademark
TANKII-429
Transport Package
Coil, Waterproof Paper, Wooden Case
Origin
China
HS Code
722699900
Model NO.
4j29 Strip
Thickness
0.1-2mm
Width
5-280mm
MOQ
30 Kgs
Trademark
TANKII-429
Transport Package
Coil, Waterproof Paper, Wooden Case
Origin
China
HS Code
722699900
Product Desciption
Bright Kovar 4j29 Strip for Stamping IC Framework
Classification : the alloy of expansion characteristics
Application: Kovar (trademark of CRS Holdings, inc., Delaware[1]) is a nickel-cobalt ferrous alloy compositionally identical to Fernico 1, designed to be compatible with the thermal expansion characteristics of borosilicate glass (~5 × 10?6 /K between 30 and 200 °C, to ~10 × 10?6 /K at 800 °C) in order to allow direct mechanical connections over a range of temperatures. It finds application in electroplated conductors entering glass envelopes of electronic parts such as vacuum tubes (valves), X-ray and microwave tubes and some lightbulbs.
Chemical Composition in % Kovar
The thermal properties of alloy
The name Kovar is often used as a general term for Fe-Ni alloys with these particular thermal expansion properties. Note the related particular Fe-Ni alloy Invar which exhibits minimum thermal expansion.
TANKII, referring to the presence of high-power production, offers customers buy alloy Kovar in the required quantities and ensures minimum time shipments of rolled metal products, made on the basis of Kovar.
Classification : the alloy of expansion characteristics
Application: Kovar (trademark of CRS Holdings, inc., Delaware[1]) is a nickel-cobalt ferrous alloy compositionally identical to Fernico 1, designed to be compatible with the thermal expansion characteristics of borosilicate glass (~5 × 10?6 /K between 30 and 200 °C, to ~10 × 10?6 /K at 800 °C) in order to allow direct mechanical connections over a range of temperatures. It finds application in electroplated conductors entering glass envelopes of electronic parts such as vacuum tubes (valves), X-ray and microwave tubes and some lightbulbs.
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 % |
The thermal properties of alloy
| Temperature coefficient of linear expansion αsr ? 10-6 K-1 in the temperature range, ° C | inflection point temperature, ° C No less | Heat treatment regime blanks and samples | ||||||||
| 20-80 | 20-100 | 20-300 | 20-400 | 20-450 | 20-500 | 20-800 | ||||
| - | - | 4,6-5,6 | 4,6-5,2 | - | 5,9-6,4 | - | 420 | samples and blanks annealing in hydrogen, a vacuum or protective atmosphere at a temperature (960 ± 20) ° C, holding 1 hr., cooling with the furnace or container to 200 ° C at a rate not exceeding 10 ° C / min | ||
| Property | sintered | HIPed | ||||||||
| Density / g cm3 | 8.0 | 8.35 | ||||||||
| Hardness / HV1 | 160 | 150 | ||||||||
| Youngs Modulus / GPa | 138 | 138 | ||||||||
| reduction of area at fracture / % | 30 | 30 | ||||||||
| yield strength / MPa | 270 | 270 | ||||||||
| thermal conductivity / W/Km | 17 | |||||||||
| Curie Temperature / °C | 435 | |||||||||
| electrical resistivity Ω mm2 / m | 0.49 | |||||||||
| specific heat J/gK | 0.46 | |||||||||
| thermal expansion coefficient/10?6 K?1 (25 - 200 °C) | 5.5 | |||||||||
| (25-300 °C) | 5.1 | |||||||||
| (25-400 °C) | 4.9 | |||||||||
| (25-450 °C) | 5.3 | |||||||||
| (25-500 °C) | 6.2 | |||||||||
The name Kovar is often used as a general term for Fe-Ni alloys with these particular thermal expansion properties. Note the related particular Fe-Ni alloy Invar which exhibits minimum thermal expansion.
TANKII, referring to the presence of high-power production, offers customers buy alloy Kovar in the required quantities and ensures minimum time shipments of rolled metal products, made on the basis of Kovar.
You Might Also Like
Children′ S Bicycles 3-Year-Old Baby Bicycles 2-4-6-Ye......
Removable Plate Heat Exchanger with SS304 316L Plates
Automatic Parking Barrier Parking Position Lock
5 Axis CNC Precision Machining Vane Whee
Elite 24V 200ah Li-ion Phosphate Battery Green Energy LiFePO......
6015 Sculpture Art Wood Carving, Panel Automatic Cutting Mac......
13ft Folding Huge Outdoor Trampoline GS Certification
Wholesale Factory Made High Quality Hospital Bed Mattress To......
Four Color Polyester Film Flexographic Printing Machine
Zoomlion Bull Dozer O Ring 1081001402 for Zoomlion Bulldozer......
Diamond Drill