FOB Price
Get Latest Price|
80 Kilogram Minimum Order
Country:
China
Model No:
wire, plate, bar, pipe, sheet
FOB Price:
Place of Origin:
Jiangsu,China
Price for Minimum Order:
-
Minimum Order Quantity:
80 Kilogram
Packaging Detail:
wooden case packaging(depend on the customer's requirements)
Delivery Time:
2-4 weeks(depend on the quantity of the order)
Supplying Ability:
500 Ton per Year
Payment Type:
PayPal, Money Gram, Western Union, D/P, D/A, L/C, T/T
Product Group :
Contact Person Mr. David
Canal town, Danyang City, Jiangsu
4J*9 KOVAR
4J*9 is also known as kovar alloy,ASTM F*5,Nilo-K, UNS K****0 ,(FeNi*9Co*7),
YB/T********5 ,(FeNi*9Co*8),Lockinvar,Alloy *2B,Sealing Alloy. Iron Nickel cobalt.
Note:
A Nickel-Iron-Cobalt, controlled expansion alloy containing *9% Nickel. It's coefficient of expansion (which decreases with rising temperature to the inflection point), matches the expansion rate of borosilicate glasses and aluminia ceramics. Applications include glass to metal seals in applications requiring high reliability or resistance to thermal shock, ie. high-power transmitting valves,transistor leads and heaters and photography flash bulbs.
1.Alloy grades and chemical composition consistent with the provisions of table 1
|
the chemical composition of Kovar(%) |
||||||||||
|
C |
P |
S |
Mn |
Si |
Cu |
Cr |
Mo |
Ni |
Co |
Fe |
|
Not more than≤ |
|
|
|
|||||||
|
0.*3 |
0.**0 |
0.**0 |
0.5 |
0.*0 |
0.*0 |
0.*0 |
0.*0 |
*8.***9.5 |
*6.***7.8 |
balance |
2.table 2
|
Status code |
State |
Tensile strength,N/mm2 |
|
R 1/4I 1/2I 3/4I I |
Soft state 1/4 Hard state 1/2 Hard state 3/4 Hard state Hard state |
<**5 ******5 ******5 ******0 >**0 |
3.Strip tensile strength in line with the provisions of Table 3
|
Status code |
State |
Tensile strength,N/mm2 |
|
R 1/4I 1/2I 3/4I I |
Soft state 1/4 Hard state 1/2 Hard state 3/4 Hard state Hard state |
<**0 ******0 ******0 ******0 >**0 |
4.Alloy average linear expansion coefficient in line with the Table 4
|
Alloy Grades |
Specimen heat treatment system |
The average linear expansion coefficient a,***6/ oC |
||
|
*****0 oC |
*****0 oC |
*****0 oC |
||
|
kovar |
In hydrogen atmosphere heated to **0 ± *0 oC, insulation 1h, and then heated to ***0 ± *0 oC, insulation *5min, to not more than 5 oC / min rate of cooling to below **0 oC released. |
****- |
4.**5.2 |
5.**5.5 |
5.Alloy typical expansion coefficient
|
Alloy Grades
|
The average linear expansion coefficient a,***6/ oC |
|||||||
|
**- **0oC |
**- **0 oC |
**- **0oC |
**- **0oC |
**- **0oC |
**- **0oC |
**- **0oC |
**- **0oC |
|
|
kovar |
5.9 |
5.3 |
5.1 |
5.3 |
6.2 |
7.8 |
9.2 |
*0.2 |
| Country: | China |
| Model No: | wire, plate, bar, pipe, sheet |
| FOB Price: | Get Latest Price |
| Place of Origin: | Jiangsu,China |
| Price for Minimum Order: | - |
| Minimum Order Quantity: | 80 Kilogram |
| Packaging Detail: | wooden case packaging(depend on the customer's requirements) |
| Delivery Time: | 2-4 weeks(depend on the quantity of the order) |
| Supplying Ability: | 500 Ton per Year |
| Payment Type: | PayPal, Money Gram, Western Union, D/P, D/A, L/C, T/T |
| Product Group : | kovar |
