| Commercial ANSI/AA |
Aluminum Die Casting Alloys |
360
|
380
|
384
|
413 |
| Detailed Composition |
| Silicon |
(Si) |
9.0-10.0 |
7.5-9.5 |
10.5-12 |
11.0-13.0 |
| Iron |
(Fe) |
2.0 |
2.0 |
1.3 |
2.0 |
| Copper |
(Cu) |
0.6 |
3.0-4.0 |
3.0-4.5 |
1.0 |
| Magnesium |
(Mg) |
0.4-0.6 |
0.10 |
0.10 |
0.10 |
| Manganese |
(Mn) |
0.35 |
0.50 |
0.50 |
0.35 |
| Nickel |
(Ni) |
0.50 |
0.50 |
0.50 |
0.50 |
| Zinc |
(Zn) |
0.50 |
3.0 |
3.0 |
0.50 |
| Tin |
(Sm) |
0.15 |
0.35 |
0.35 |
0.15 |
| Total Others |
|
0.25 |
0.50 |
0.50 |
0.25 |
| Aluminum |
(Al) |
Balance |
Balance |
Balance |
Balance |
| Commercial ANSI/AA |
Aluminum Die Casting Alloys |
360
|
380
|
384
|
413 |
| Mechanical Properties |
| Ultimate Tensile Strength ksi (MPa) |
44 (303) |
46 (317) |
48 (330) |
43 (300) |
Yield Strength
ksi (MPa) |
25 (170) |
23 (160) |
24 (165) |
21 (140) |
Elongation
% in 2in. (51mm) |
2.5 |
3.5 |
2.5 |
2.5 |
| Hardness BHN |
75 |
80 |
85 |
80 |
Shear Strength
ksi (MPa) |
28 (190) |
28 (190) |
29(200) |
25 (170) |
Impact Strength
ft-lb |
- |
- |
3 (4) |
- |
| Fatigue Strength ksi (MPa) |
20 (140) |
20 (140) |
20 (140) |
19 (130) |
Young’s Modulus
psi x 10 6(GPa) |
10.3 (71) |
10.3 (71) |
- |
10.3 (71) |
| Physical Properties |
Density
lb / in³
(g/cm³) |
0.095
(2.63) |
0.099
(2.74) |
0.102
(2.82) |
0.096
(2.66) |
Melting Range
°F
(°C) |
1035-1105 (557-596) |
1000-1100 (540-595) |
960-1080 (516-582) |
1065-1080 (574-582) |
Specific Heat
BTU / lb °F
(J/kg °C) |
0.23
(963) |
0.23
(963) |
0.23
(963) |
0.23
(963) |
Coefficient of Thermal Expansion
µ in / in°F
µ m / m°K |
11.6
(21.0) |
12.2
(22.0) |
11.6
(21.0) |
11.3
(20.4) |
Thermal Conductivity BTU / ft hr°F
(W / m °K) |
65.3
(113) |
55.6
(96.2) |
55.6
(96.2) |
70.1
(121) |
Electrical Conductivity
% IACS |
30 |
27 |
22 |
31 |
| Poisson’s Ration |
0.33 |
0.33 |
- |
- |
| Commercial ANSI/AA |
Aluminum Die Casting Alloys |
360
|
380
|
384
|
413 |
| Resistance to Hot Cracking (a) |
1 |
2 |
2 |
1 |
| Pressure Tightness |
2 |
2 |
2 |
1 |
| Die-Filling Capacity (b) |
3 |
2 |
1 |
1 |
| Anti-Soldering to the Die (c) |
2 |
1 |
2 |
1 |
| Corrosion Resistance (d) |
2 |
4 |
5 |
2 |
| Machining Easy & Quality (e) |
3 |
3 |
3 |
4 |
| Polishing Ease & Quality (f) |
3 |
3 |
3 |
5 |
| Electroplating Ease & Quality (g) |
2 |
1 |
2 |
3 |
| Anodizing (Appearance) (h) |
3 |
3 |
4 |
5 |
| Chemical Oxide Protective Coating (i) |
3 |
4 |
5 |
3 |
| Strength at Elevated Temp. (j) |
1 |
3 |
2 |
3 |
| (a) |
Ability of alloy to withstand stresses from contraction while cooling through hot-short or brittle temperature ranges. |
| (b) |
Ability of molten alloy to flow readily in die and fill thin sections. |
| (c) |
Ability of molten alloy to flow without sticking to the die surfaces. Ratings given for anti-soldering are based on nominal iron compositions of approximately 1%. |
| (d) |
Based on resistance of alloy in standard type slat spray test. |
| (e) |
Composite rating based on ease of cutting, chip characteristics, quality of finish, and tool life. |
| (f) |
Composite rating based on ease and speed of polishing and quality of finish provided by typical polishing procedure. |
| (g) |
Ability of the die casting to take and hold an electroplate applied by present standard. |
| (h) |
Rated on lightness of color, brightness, and uniformity of clear anodized coating applied in sulphuric acid electrolyte. |
| (i) |
Rated on combined resistance of coating and prolonged heating at testing temperature. |
