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ACI-ASTM CA15M Steel vs. EN-MC35110 Magnesium

ACI-ASTM CA15M steel belongs to the iron alloys classification, while EN-MC35110 magnesium belongs to the magnesium alloys. There are 30 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 ACI-ASTM CA15M steel and the bottom bar is EN-MC35110 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
63
Elastic (Young's, Tensile) Modulus, GPa 200
45
Elongation at Break, % 20
3.1
Fatigue Strength, MPa 330
110
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
18
Tensile Strength: Ultimate (UTS), MPa 690
230
Tensile Strength: Yield (Proof), MPa 510
150

Thermal Properties

Latent Heat of Fusion, J/g 270
330
Maximum Temperature: Mechanical, °C 760
140
Melting Completion (Liquidus), °C 1450
600
Melting Onset (Solidus), °C 1410
520
Specific Heat Capacity, J/kg-K 480
970
Thermal Conductivity, W/m-K 27
110
Thermal Expansion, µm/m-K 10
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
27
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
130

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
18
Density, g/cm3 7.8
1.9
Embodied Carbon, kg CO2/kg material 2.1
24
Embodied Energy, MJ/kg 29
170
Embodied Water, L/kg 100
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
6.3
Resilience: Unit (Modulus of Resilience), kJ/m3 670
260
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
63
Strength to Weight: Axial, points 25
34
Strength to Weight: Bending, points 22
44
Thermal Diffusivity, mm2/s 7.2
61
Thermal Shock Resistance, points 25
14

Alloy Composition

Carbon (C), % 0 to 0.15
0
Chromium (Cr), % 11.5 to 14
0
Copper (Cu), % 0
0 to 0.030
Iron (Fe), % 82.1 to 88.4
0 to 0.010
Magnesium (Mg), % 0
92 to 95.4
Manganese (Mn), % 0 to 1.0
0 to 0.15
Molybdenum (Mo), % 0.15 to 1.0
0
Nickel (Ni), % 0 to 1.0
0 to 0.0050
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.65
0 to 0.010
Sulfur (S), % 0 to 0.040
0
Unspecified Rare Earths, % 0
0.75 to 1.8
Zinc (Zn), % 0
3.5 to 5.0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.010