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magnesium material data
MATERIAL
Magnesium
Magnesium
Magnesium
ALLOY
AZ91D
AM50A
AM50B
Mechanical Properties
Tensile Strength - Ultimate
KSI (M Pa)
36
243
29
200
32
220
Tensile Strength - Yield
KSI (M Pa)
23
160
16
110
19
130
Tensile Modulus
MSI (G Pa)
6.5
45
6.5
45
6.5
45
Elongation
%
6
10
4
Poissons Ratio
0.35
0.35
0.35
Impact Strength
ft-lb ( J )
3.5
4.8
7
9.5
4.5
6.1
Specific Modulus
in
9.94E+07
1.02E+08
1.00E+08
Physical Properties
Specific Gravity
g/cc
1.81
1.78
1.79
Density
lb/in3
0.065
0.064
0.065
Specific Volume
in3/lb
15.29
15.63
15.38
Hardness
Rockwell R
75
74
74
Thermal Properties
Thermal Conductivity
Btu/ft-hr-F (W/m-K)
41.8
72
36
62
36
62
Specific Heat
Btu/lb-F (kJ/kg-K)
0.25
1.05
0.25
1.05
0.25
1.05
Coefficient of Thermal Expansion
min/in-F (mm/m-K)
13.8
25
14.4
26
14.2
25.6
Deflection Temperature @ 66 PSI
F (C)
>700
>370
>700
>370
>700
>370
Deflection Temperature @ 264 PSI
F (C)
>700
>370
>700
>370
>700
>370
Deflection Temperature @ 6000 PSI
F (C)
>356
>180
>356
>180
>356
>180
Melting Temperature
F (C)
1105
595
1150
620
1140
615
Electrical Properties
Electrical Conductivity
% IACS
12
14
17
Electrical Resistivity
mOhm-in
43
36
31
Shielding Effectiveness @ 0.020"
dB
>85
>85
>85
Shielding Effectiveness @ 0.050"
dB
>88
>88
>88
Shielding Effectiveness @ 0.100"
dB
>90
>90
>90
Corrosion Properties
Mil 117B Salt Spray Corrosion
Mils Per year
2.8
4.7
4
Flame Characteristics
Ignition Temperature at STP
F (C)
900+
500+
900+
500+
900+
500+
UL 94 Flame Exposure Results
Does Not Ignite
Does Not Ignite
Does Not Ignite
