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EN-MC35110 Magnesium vs. ASTM Grade HN Steel

EN-MC35110 magnesium belongs to the magnesium alloys classification, while ASTM grade HN steel belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (9, 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-MC35110 magnesium and the bottom bar is ASTM grade HN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 63
140
Elastic (Young's, Tensile) Modulus, GPa 45
200
Elongation at Break, % 3.1
9.0
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 18
77
Tensile Strength: Ultimate (UTS), MPa 230
500

Thermal Properties

Latent Heat of Fusion, J/g 330
310
Maximum Temperature: Mechanical, °C 140
1080
Melting Completion (Liquidus), °C 600
1400
Melting Onset (Solidus), °C 520
1350
Specific Heat Capacity, J/kg-K 970
480
Thermal Conductivity, W/m-K 110
13
Thermal Expansion, µm/m-K 26
16

Otherwise Unclassified Properties

Base Metal Price, % relative 18
26
Density, g/cm3 1.9
7.9
Embodied Carbon, kg CO2/kg material 24
4.6
Embodied Energy, MJ/kg 170
66
Embodied Water, L/kg 940
180

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 63
25
Strength to Weight: Axial, points 34
17
Strength to Weight: Bending, points 44
18
Thermal Diffusivity, mm2/s 61
3.5
Thermal Shock Resistance, points 14
11

Alloy Composition


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Carbon (C), % 0
0.2 to 0.5
Chromium (Cr), % 0
19 to 23
Copper (Cu), % 0 to 0.030
0
Iron (Fe), % 0 to 0.010
44.9 to 57.8
Magnesium (Mg), % 92 to 95.4
0
Manganese (Mn), % 0 to 0.15
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0 to 0.0050
23 to 27
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.010
0 to 2.0
Sulfur (S), % 0
0 to 0.040
Unspecified Rare Earths, % 0.75 to 1.8
0
Zinc (Zn), % 3.5 to 5.0
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0