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EN-MC95310 Magnesium vs. EN 1.7706 Steel

EN-MC95310 magnesium belongs to the magnesium alloys classification, while EN 1.7706 steel belongs to the iron alloys. There are 30 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-MC95310 magnesium and the bottom bar is EN 1.7706 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 85
210
Elastic (Young's, Tensile) Modulus, GPa 45
190
Elongation at Break, % 2.2
17
Fatigue Strength, MPa 110
330
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 17
73
Tensile Strength: Ultimate (UTS), MPa 280
690
Tensile Strength: Yield (Proof), MPa 190
500

Thermal Properties

Latent Heat of Fusion, J/g 330
260
Maximum Temperature: Mechanical, °C 170
440
Melting Completion (Liquidus), °C 650
1470
Melting Onset (Solidus), °C 540
1430
Specific Heat Capacity, J/kg-K 960
470
Thermal Conductivity, W/m-K 51
40
Thermal Expansion, µm/m-K 25
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 50
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 34
3.7
Density, g/cm3 1.9
7.9
Embodied Carbon, kg CO2/kg material 29
2.3
Embodied Energy, MJ/kg 260
32
Embodied Water, L/kg 900
57

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.6
110
Resilience: Unit (Modulus of Resilience), kJ/m3 420
670
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 61
24
Strength to Weight: Axial, points 40
24
Strength to Weight: Bending, points 49
22
Thermal Diffusivity, mm2/s 28
11
Thermal Shock Resistance, points 18
20

Alloy Composition


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Carbon (C), % 0
0.15 to 0.2
Chromium (Cr), % 0
1.2 to 1.5
Copper (Cu), % 0 to 0.030
0 to 0.3
Iron (Fe), % 0 to 0.010
94.7 to 97.1
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 88.9 to 93.4
0
Manganese (Mn), % 0 to 0.15
0.5 to 0.9
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 0 to 0.0050
0 to 0.4
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.010
0 to 0.6
Sulfur (S), % 0
0 to 0.015
Unspecified Rare Earths, % 1.5 to 4.0
0
Vanadium (V), % 0
0.2 to 0.3
Yttrium (Y), % 4.8 to 5.5
0
Zinc (Zn), % 0 to 0.2
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0