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Elmet Technologies

Magnesium K1A-F, Sand Cast
Categories: Metal; Nonferrous Metal; Magnesium Alloy

Material Notes: Low strength and modulus; used for its high damping capacity. It has slightly better mechanical properties as a die cast than as sand cast.

Key Words: UNS M18010; Mg; ASTM B 80
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Physical PropertiesMetricEnglishComments
Density 1.74 g/cc0.0629 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength, Ultimate 180 MPa26100 psi
Tensile Strength, Yield 55.0 MPa
@Strain 0.2 %
7980 psi
@Strain 0.2 %
Elongation at Break 19 %19 %in 50 mm
Modulus of Elasticity 38.0 GPa5510 ksiUnusually low for Mg alloy.
Compressive Yield Strength 55.0 MPa7980 psiMachined specimen with L/D less than or equal to 3
Ultimate Bearing Strength 317 MPa46000 psi
Bearing Yield Strength 125 MPa18100 psi
Poissons Ratio 0.320.32Calculated
Machinability 100 %100 %Relative Rating, 100=Best
Shear Modulus 17.0 GPa2470 ksiEstimated from similar Mg alloys.
Shear Strength 55.0 MPa7980 psi
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.00000570 ohm-cm0.00000570 ohm-cm
 
Thermal PropertiesMetricEnglishComments
Heat of Fusion 343 - 360 J/g148 - 155 BTU/lb
CTE, linear  27.0 µm/m-°C
@Temperature 20.0 - 200 °C
15.0 µin/in-°F
@Temperature 68.0 - 392 °F
 27.0 µm/m-°C
@Temperature 0.000 - 100 °C
15.0 µin/in-°F
@Temperature 32.0 - 212 °F
Specific Heat Capacity 1.00 J/g-°C0.239 BTU/lb-°FTypical Mg alloy value.
Thermal Conductivity 122 W/m-K847 BTU-in/hr-ft²-°F
Melting Point 650 °C1200 °F
Solidus 650 °C1200 °F
Liquidus 650 °C1200 °F
 
Processing PropertiesMetricEnglishComments
Casting Temperature 750 - 820 °C1380 - 1510 °FSand Casting
 
Component Elements PropertiesMetricEnglishComments
Magnesium, Mg 99 %99 %As Remainder
Zirconium, Zr 0.40 - 1.0 %0.40 - 1.0 %

References for this datasheet.

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MMK1A0 / 12450

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