Albco offers a unique process and material combinations. The process of graphite permanent molding coupled with the versatile family of ZA alloys makes for short lead time, precision cast tolerances, excellent detail and superior surface finish. ZA12 has replaced aluminum, brass and cast iron castings as well as steel fabrications in many applications. Their unique bearing qualities can eliminate the need for pressed in bushings. Because of ZA 12's fluidity, raised graphics, artwork, and company logos can be cast in fine detail.
ZA 12 vs. Cast Iron
ZA 12 weights the same as cast iron and has roughly the same strength. ZA 12 machines three times easier than cast iron allowing for faster cycle times and reduced tool wear.
ZA 12 vs. Aluminum
ZA 12, as cast, is harder, stronger, and heavier than sand and die cast aluminums. ZA alloys have inherent bearing properties and are being used as direct substitutes for large bronze industrial bushings and bearings.
ZA 12 vs. Other casting Materials and processes
|
|
Albco ZA12 |
For Comparison Only Aluminum 356-T6 |
|
|
|
|
Tensile Strength (1000 psi) |
50 |
33 |
40 |
37 |
34 |
|
Yield Strength (1000 psi) |
31 |
24 |
27 |
17 |
- |
|
Elongation (%) |
2-3 |
3.5 |
5 |
30 |
- |
|
Hardness (Brinell) |
110-115 |
70 |
80 |
65 |
180-225 |
|
Density (lb/in) |
.22 |
.10 |
.10 |
.32 |
.26 |
|
Electrical Conductivity (% Cu) |
25 |
39 |
41 |
15 |
- |
COMPOSITION
ZA Alloys conform to ASTM ingot specification B669-84
% Wt. Of Main Alloying Elements
|
|
U.N.S. No. |
Al |
Cu |
Mg |
Zn |
|
ZA-8 |
(Z25630) |
8.0-8.8 |
0.8-1.3 |
0.015-0.030 |
Balance |
|
ZA-12 |
(Z35630) |
10.5-11.5 |
0.5-1.25 |
0.015-0.030 |
Balance |
|
ZA-27 |
(Z25840) |
28-28 |
2.0-2.5 |
0.010-0.020 |
Balance |
COMPARISON RATINGS
|
|
ZA-8 |
ZA-12 |
ZA-27 |
|
Bearing/Wear |
G |
E |
E |
|
Chromating |
E |
G |
F |
|
Die Castability |
E |
G |
G |
|
Dimensional |
|
|
|
|
Ductility |
G |
G |
G |
|
Machinability |
E |
E |
E |
|
Painting |
E |
E |
E |
|
Perm. Moldability |
E |
E |
F |
|
Plating |
E |
G |
F |
|
Pressure Tightness |
G |
E |
F |
|
Sand Castability |
G |
E |
F |
|
Strength |
G |
G |
E |
|
Zinc Anodizing |
E |
E |
E |
|
E-Excellent |
G-Good |
F-Fair |
|
Comparison of Typical Casting Alloy Properties (pdf) (Requires Adobe Acrobat Reader)
Founded in 1956, Albco Foundry and Machine has the experience and expertise to proved you with its near net shape casting process. We have full CNC machining and offer painting and special coatings that make us a true single source provider.
It is our goal to reduce your current component manufacturing costs while at the same time enhance your product's performance, appearance, and quality.
With our nationwide network of engineers and metallurgists, Albco would be happy to provide an on-site seminar for your designers, engineers, or material specifiers.
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