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ASTM Grade HD Steel vs. EN-MC95310 Magnesium

ASTM grade HD steel belongs to the iron alloys classification, while EN-MC95310 magnesium belongs to the magnesium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, 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 ASTM grade HD steel and the bottom bar is EN-MC95310 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
45
Elongation at Break, % 9.1
2.2
Fatigue Strength, MPa 140
110
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 80
17
Tensile Strength: Ultimate (UTS), MPa 590
280
Tensile Strength: Yield (Proof), MPa 270
190

Thermal Properties

Latent Heat of Fusion, J/g 310
330
Maximum Temperature: Mechanical, °C 1100
170
Melting Completion (Liquidus), °C 1410
650
Melting Onset (Solidus), °C 1370
540
Specific Heat Capacity, J/kg-K 490
960
Thermal Conductivity, W/m-K 16
51
Thermal Expansion, µm/m-K 11
25

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
11
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
50

Otherwise Unclassified Properties

Base Metal Price, % relative 17
34
Density, g/cm3 7.7
1.9
Embodied Carbon, kg CO2/kg material 3.1
29
Embodied Energy, MJ/kg 45
260
Embodied Water, L/kg 180
900

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 44
5.6
Resilience: Unit (Modulus of Resilience), kJ/m3 180
420
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 26
61
Strength to Weight: Axial, points 21
40
Strength to Weight: Bending, points 20
49
Thermal Diffusivity, mm2/s 4.3
28
Thermal Shock Resistance, points 19
18

Alloy Composition

Carbon (C), % 0 to 0.5
0
Chromium (Cr), % 26 to 30
0
Copper (Cu), % 0
0 to 0.030
Iron (Fe), % 58.4 to 70
0 to 0.010
Lithium (Li), % 0
0 to 0.2
Magnesium (Mg), % 0
88.9 to 93.4
Manganese (Mn), % 0 to 1.5
0 to 0.15
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 4.0 to 7.0
0 to 0.0050
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 2.0
0 to 0.010
Sulfur (S), % 0 to 0.040
0
Unspecified Rare Earths, % 0
1.5 to 4.0
Yttrium (Y), % 0
4.8 to 5.5
Zinc (Zn), % 0
0 to 0.2
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.010