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., 2006.
The specifications are subject to change without notice.
Inquiries
DOWA METANIX CO. LTD
TEL 81-(0)538-35-5211 FAX 81-(0)538-35-5574
