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Master Bond adhesives

Magnesium, Mg; Sand Cast
Categories: Metal; Nonferrous Metal; Magnesium Alloy; Pure Element

Material Notes: Sand cast applies only to tensile and/or hardness values; other property values are typical of the element. This entry is for pure Mg; MatWeb has over 125 Mg alloys entries.

Magnesium alloys are very low density (1.7 g/cc) and can be treated to reasonably high strengths. Magnesium alloys are available in both wrought and cast forms. Its low density results in its finding uses in many transportation related fields.

Many Mg alloys are listed in MatWeb.

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Physical PropertiesMetricEnglishComments
Density 1.74 g/cc0.0629 lb/in³
Viscosity  1.13 cP
@Temperature 700 °C
1.13 cP
@Temperature 1290 °F
 1.23 cP
@Temperature 650 °C
1.23 cP
@Temperature 1200 °F
a Lattice Constant 3.209 Å3.209 Å
c Lattice Constant 5.211 Å5.211 Å
Vapor Pressure  1.51987e-020 bar
@Temperature 25.000 °C
1.00e-17 torr
@Temperature 77.000 °F
 5.27e-14 bar
@Temperature 127 °C
3.95e-11 torr
@Temperature 260 °F
 0.00360 bar
@Temperature 650 °C
2.70 torr
@Temperature 1200 °F
solid and liquid
 
Chemical PropertiesMetricEnglishComments
Atomic Mass 24.305024.30501995
Atomic Number 1212
Thermal Neutron Cross Section 0.060 barns/atom0.060 barns/atom
X-ray Absorption Edge 9.5117 Å9.5117 ÅK
 197.39 Å197.39 ÅLI
 247.92 Å247.92 ÅLII
 247.92 Å247.92 ÅLIII
Electrode Potential -2.37 V-2.37 V
Electronegativity 1.311.31Pauling
Ionic Radius 0.660 Å0.660 ÅCrystal Ionic Radius for Valence +2
 0.820 Å0.820 ÅCrystal Ionic Radius for Valence +1
Electrochemical Equivalent 0.454 g/A/h0.454 g/A/h
 
Mechanical PropertiesMetricEnglishComments
Hardness, Brinell 3030500 kg load/10 mm ball
Tensile Strength, Ultimate 90.0 MPa13100 psi
Tensile Strength, Yield 21.0 MPa3050 psi
Elongation at Break 2.0 - 6.0 %2.0 - 6.0 %
Modulus of Elasticity 44.0 GPa6380 ksi
Compressive Yield Strength 21.0 MPa3050 psi
Poissons Ratio 0.350.35
Shear Modulus 16.3 GPa2360 ksiCalculated
Coefficient of Friction 0.360.36versus magnesium at 20°C
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.00000460 ohm-cm0.00000460 ohm-cm
Magnetic Permeability 1.000011.00001
Magnetic Susceptibility 5.5e-75.5e-7cgs/g
 
Thermal PropertiesMetricEnglishComments
Heat of Fusion 371.8 J/g159.9 BTU/lb
Heat of Vaporization 4760 J/g2050 BTU/lb
CTE, linear  26.1 µm/m-°C
@Temperature 20.0 - 100 °C
14.5 µin/in-°F
@Temperature 68.0 - 212 °F
 27.2 µm/m-°C
@Temperature 250 °C
15.1 µin/in-°F
@Temperature 482 °F
 29.6 µm/m-°C
@Temperature 500 °C
16.4 µin/in-°F
@Temperature 932 °F
Specific Heat Capacity 1.025 J/g-°C0.2450 BTU/lb-°F
Thermal Conductivity 159 W/m-K1100 BTU-in/hr-ft²-°F
Melting Point 648.3 - 649.3 °C1199 - 1201 °F
Boiling Point 1090 °C1990 °F
 
Optical PropertiesMetricEnglishComments
Emissivity (0-1) 0.070
@Temperature 22.0 °C
0.070
@Temperature 71.6 °F
Reflection Coefficient, Visible (0-1) 0.740.74at 1.00 micron
 0.72 - 0.770.72 - 0.77at 500 nm
 0.800.80at 3.0 micron
 0.930.93at 9.0 micron
 
Component Elements PropertiesMetricEnglishComments
Magnesium, Mg 100 %100 %
 
Descriptive Properties
CAS Number7439-95-4
Crystal StructureHCPSpace Group P63/mmc

References for this datasheet.

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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