| Material Properties Comparison |
| Typical Material Properties | ||||||||||||
| Mechanical Properties | Magnesium | Aluminum | Zinc | |||||||||
| AZ91D | AM60B | AM50A | MRI 153M | MRI 230D | AJ62 | AE42 | AE44 | A380 | A383 | AG40A | ZA27 | |
| Ultimate Tensile Strength ksi (MPa) |
33 (230) |
35 (241) |
34 (237) |
36 (250) |
34 (235) |
33 (227) |
34 (237) |
36 (245) |
46 (320) |
45 (310) |
41 (283) |
62 (426) |
| Yield Strength ksi (MPa) |
22 (150) |
19 (131) |
17 (116) |
25 (170) |
26 (180) |
20 (138) |
19 (130) |
21 (142) |
23 (160) |
22 (150) |
53 (365) |
|
| Elongation % ub 2 in (51 mm) |
3.0 |
12.0 |
15.0 |
6.0 |
5.0 |
7.0 |
11.0 |
10.0 |
3.5 |
3.5 |
10.0 |
2.0 |
| Hardness Brinnell |
70 |
65 |
60 |
72 |
71 |
61 |
60 |
62 |
80 |
75 |
82 |
115 |
| Elastic Modulus Psi x 106 (GPa) |
6.5 (45) |
6.5 (45) |
6.5 (45) |
6.5 (45) |
6.5 (45) |
6.5 (45) |
6.5 (45) |
6.5 (45) |
10.3 (71) |
10.3 (71) |
11.3 (78) |
|
| Charpy Impact (unnotched) ft - lb (J) |
4.4 (6.1) |
12.5 (17.0) |
13.3 (18.0) |
5.9 (8.0) |
4.4 (6.0) |
9.8 (13.3) |
8.8 (12.0) |
11.2 (15) |
3.0 (4.0) |
3.0 (4.0) |
43 (53) |
3 (4) |
| Fatigue Strength ksi (MPa) |
14 (97) |
13 (90) |
12 (84) |
17 (120) |
16 (110) |
12 (80) |
12 (80) |
20 (140) |
20 (140) |
7 (48) |
15 (103) |
|
| Creep Resistance (ASTM B 139 - 200 hrs) 50 MPa @ 150C 50 MPa @ 200C 70 MPa @ 150C |
0.18 0.39 |
0.12 |
0.04 0.05 0.16 |
0.20 0.40 |
0.09 |
0.08 0.17 |
0.08 0.18 |
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| Physical Properties | Magnesium | Aluminum | Zinc | |||||||||
| AZ91D | AM60B | AM50A | MRI 153M | MRI 230D | AJ62 | AE42 | AE44 | A380 | A383 | AG40A | ZA27 | |
| Density lb / in3 (g / cm3) |
0.066 (1.82) |
0.065 (1.80) |
0.064 (1.77) |
0.066 (1.82) |
0.066 (1.82) |
0.065 (1.80) |
0.065 (1.79) |
0.066 (1.82) |
0.099 (2.74) |
0.099 (2.74) |
0.240 (6.60) |
0.181 (5.00) |
| Melting Range F (C) |
875-1105 (470-595) |
1005-1140 (540-615) |
1210-1270 (654-688) |
946-1115 (508-602) |
977-1123 (525-606) |
955-1134 (612) |
1095-1160 (590-625) |
1062-1148 (572-620) |
1000-1100 (540-595) |
960-1080 (557-596) |
718-728 (381-389) |
708-903 (375-484) |
| Specific Heat BTU / lb - F (J / kg - C) |
0.250 (1.05) |
0.244 (1.02) |
0.244 (1.02) |
0.260 (1.09) |
0.248 (1.04) |
0.243 (1.02) |
0.243 (1.02) |
0.230 (0.963) |
0.230 (0.963) |
0.100 (0.418) |
0.125 (0.522) |
|
| Coefficient of Thermal Expansion u in / in - F (um / m - K) |
14.4 (26.0) |
14.4 (26.0) |
14.4 (26.0) |
14.3 (25.9) |
13.9 (25.1) |
15.1 (27.3) |
14.4 (26.1) |
14.4 (26.1) |
12.2 (22.0) |
12.2 (22.0) |
15.2 (27.4) |
14.4 (26.0) |
| Thermal Conductivity BTU / ft - hr - F (W / m - K) |
32 (55) |
36 (62) |
37 (65) |
37 (64) |
45 (77) |
45 (77) |
49 (84) |
49 (84) |
56 (96) |
56 (96) |
65 (113) |
73 (123) |
| Electrical Conductivity % IACS |
36 |
33 |
32 |
36 |
35 |
25 |
31 |
20 |
27 |
23 |
27 |
30 |
| Poisson's Ratio mm / m |
0.35 |
0.35 |
0.35 |
0.35 |
0.35 |
0.35 |
0.35 |
0.35 |
0.33 |
0.33 |
0.30 |
0.30 |
| Corrosion Rate mg/cm2/day |
0.10 |
0.15 |
0.16 |
0.09 |
0.10 |
0.04 |
0.12 |
0.05 |
0.34 |
0.33 |
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| Note: | The above data is obtained from individually die-cast test specimens and is provided in good faith. | |
| Sources: | The above data is compiled from one or more of the following sources: ASM Specialty Handbook - Magnesium and Magnesium Alloys, ASM International, Metals Park, OH, (1999); Dead Sea Magnesium product brochure, (December 2002); Hydro Magnesium product brochure, (June 2001); International Magnesium Association, (October 2003); Noranda Magnesium data, (February and April 2003). |