Home > Product Information : Lead frame materials(42%Ni-Fe)
Lead frame materials
Characteristics
•High dimension accuracy and flatness Formability in high-speed stamping
,photo etching and stability after forming.
•Good surface cleanness and surface uniformity.Excellent surface processability and adhesiveness of oxide film for high-speed plating.
•High hardness and transform resistance.
•Much closeness to coefficient of linear expansion of Si, so it is adequate to use 42%Ni-Fe in molding process.
•Precice composition control ensures the stability of product characteristics.
•Referential standards:ASTM F-30(UNS K94100)
Chemical composition(wt%)
| Ni | Fe |
| 41 | Bal. |
Mechanical properties
| Temper | T/S (N/mm2) |
Elongation (%) |
Hardness (HV) |
|---|---|---|---|
| A | ~590 |  30 |
120~160 |
| 1/2H | 590~735 | 3 |
180~220 |
Physical properties
Density(20 ) |
g/cm3 | 8.15 |
|---|---|---|
| Modulus of elasticity | GPa | 145 |
| Electrical resistivity | µ •m |
0.55 |
| Thermal conductivity | W/(m•K) | 14.7 |
Coefficient of linear expansion(900 x 1hr) |
X10-6/ |
4.2(30-300) |
| Curie point | |
375 |
| Melting point | |
1425 |
Coefficient of linear expansion curve
Manufacturing range
| Product form | Thickness(mm) | Width(mm) |
|---|---|---|
| coil | 0.050~1.00 | 10~600 |
The specifications shown above are those as of Jan., 2015.
The specifications are subject to change without notice.
The specifications shown above are those as of Jan., 2015.
The specifications are subject to change without prior notice.
Inquiries
DOWA METALTECH CO.,LTD.
METAL PROCESSING BUSINESS UNIT SALES DEPARTMENT II
TEL 81-(0)53-453-4223 FAX 81-(0)53-453-4226
