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EN-MC65210 Magnesium vs. ASTM A228 Music Wire

EN-MC65210 magnesium belongs to the magnesium alloys classification, while ASTM A228 music wire belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is EN-MC65210 magnesium and the bottom bar is ASTM A228 music wire.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
710
Elastic (Young's, Tensile) Modulus, GPa 44
190
Elongation at Break, % 2.8
12
Fatigue Strength, MPa 110
1280
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 17
72
Shear Strength, MPa 150
1470
Tensile Strength: Ultimate (UTS), MPa 270
2450
Tensile Strength: Yield (Proof), MPa 200
2050

Thermal Properties

Latent Heat of Fusion, J/g 340
250
Maximum Temperature: Mechanical, °C 170
400
Melting Completion (Liquidus), °C 610
1450
Melting Onset (Solidus), °C 540
1410
Specific Heat Capacity, J/kg-K 970
470
Thermal Conductivity, W/m-K 110
49
Thermal Expansion, µm/m-K 26
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 110
8.2

Otherwise Unclassified Properties

Density, g/cm3 2.0
7.8
Embodied Carbon, kg CO2/kg material 27
1.4
Embodied Energy, MJ/kg 220
19

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.9
280
Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 59
24
Strength to Weight: Axial, points 38
87
Strength to Weight: Bending, points 47
52
Thermal Diffusivity, mm2/s 58
13
Thermal Shock Resistance, points 17
79

Alloy Composition


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Carbon (C), % 0
0.7 to 1.0
Copper (Cu), % 0 to 0.030
0
Iron (Fe), % 0 to 0.010
98 to 99
Magnesium (Mg), % 92.6 to 95.6
0
Manganese (Mn), % 0 to 0.15
0.2 to 0.6
Nickel (Ni), % 0 to 0.0050
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.010
0.1 to 0.3
Silver (Ag), % 2.0 to 3.0
0
Sulfur (S), % 0
0 to 0.030
Unspecified Rare Earths, % 2.0 to 3.0
0
Zinc (Zn), % 0 to 0.2
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0