| Model: | 4J29 |
|---|---|
| Brand: | KX-Alloy |
| Origin: | Made In China |
| Category: | Metallurgy , Mining & Energy / Metallurgy & Mining / Non-ferrous Metal Alloy |
| Label: | ASTM F15 , Kovar , Nilo K |
| Price: |
US $26.7
/ kg
|
| Min. Order: | 50 kg |
| Live Chat: |  | Last Online:07 Sep, 2019 |
Alloy grades and chemical composition consistent with the provisions of table Ⅰ
|
The chemical composition of Kovar(%) |
||||||||||
|
C |
P |
S |
Mn |
Si |
Cu |
Cr |
Mo |
Ni |
Co |
Fe |
|
Not more than（≤） |
|
|
|
|||||||
|
0.03 |
0.020 |
0.020 |
0.5 |
0.30 |
0.20 |
0.20 |
0.20 |
28.5～29.5 |
16.8～17.8 |
Balance |
The tensile strength of wire in line with the provisions of Table Ⅱ
|
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
|
<585 585—725 655—795 725—860 >860 |
Strip tensile strength in line with the provisions of Table Ⅲ
|
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 |
<570 520—630 590—700 600—770 >700 |
|
Alloy Grades |
Specimen heat treatment system |
The average linear expansion coefficient a,10-6/ oC |
||
|
20-300 oC |
20-400 oC |
20-450 oC |
||
|
kovar |
In hydrogen atmosphere heated to 900 ± 20 oC, insulation lh, and then heated to 1100 ± 20 oC, insulation 15min, to not more than 5 oC / min rate of cooling to below 200 oC released |
----- |
4.6-5.2 |
5.1-5.5
|
Alloy average linear expansion coefficient in line with the provisions of Schedule IV
Alloy typical expansion coefficient
|
Alloy Grades
|
The average linear expansion coefficient a,10-6/ oC |
|||||||
|
20-200 oC |
20-300 oC |
20-400 oC |
20-450 oC |
20-500 oC |
20-600 oC |
20-700 oC |
20-800 oC |
|
|
kovar |
5.9 |
5.3 |
5.1 |
5.3 |
6.2 |
7.8 |
9.2 |
10.2 |
Note: The values in the table are for reference only.
| Price Terms: | FOB Shanghai |
|---|---|
| Payment Terms: | T/T |
| Packing: | In wooden cases |
| Standards Certificate: | ISO9001:2008 |
