Henan Chalco 's 5083 aluminium drilling entry sheet are manufactured with state-of-the-art equipment which matches international standards. Tight thickness tolerance, flatness, dimensional accuracy and grease-free surface and hardness optimal for burr-free drilling required in the manufacture of PCB are ensured..
Specification
|
Aluminium Drilling Entry Sheet |
|
Alloy |
Temper |
Specification(mm) |
|
Thickness |
Width |
Length |
|
5083 |
H18 |
0.14~0.18 |
1244 |
1092 1041 940 |
|
1220 |
1067 1016 914 |
|
MECHANICAL PROPERTY |
|
Alloy |
Temper |
Thickness(mm) |
U.T.S(Mpa) |
Elongation(%) |
|
5083 |
H18 |
0.14-0.18 |
170-190 |
>=2 |
|
TOLERANCE |
|
Thickness(mm) |
Width(mm) |
Length(mm) |
Squareness (mm) |
|
|
+/-0.005mm |
1 |
1 |
<=2 |
|
|
Chemical Composition limits(WT.%) |
|
Alloy |
Si |
Fe |
Cu |
Mn |
Mg |
Cr |
Ni |
Zn |
Ti |
Al |
|
5083 |
0.95 |
0.05~0.20 |
0.05 |
- |
- |
- |
0.10 |
- |
Remains
|
