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ACI-ASTM CA15 Steel vs. EN-MC95310 Magnesium

ACI-ASTM CA15 steel belongs to the iron alloys classification, while EN-MC95310 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 CA15 steel and the bottom bar is EN-MC95310 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
85
Elastic (Young's, Tensile) Modulus, GPa 190
45
Elongation at Break, % 21
2.2
Fatigue Strength, MPa 370
110
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
17
Tensile Strength: Ultimate (UTS), MPa 700
280
Tensile Strength: Yield (Proof), MPa 570
190

Thermal Properties

Latent Heat of Fusion, J/g 280
330
Maximum Temperature: Mechanical, °C 750
170
Melting Completion (Liquidus), °C 1440
650
Melting Onset (Solidus), °C 1500
540
Specific Heat Capacity, J/kg-K 480
960
Thermal Conductivity, W/m-K 25
51
Thermal Expansion, µm/m-K 10
25

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
11
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
50

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
34
Density, g/cm3 7.7
1.9
Embodied Carbon, kg CO2/kg material 2.0
29
Embodied Energy, MJ/kg 28
260
Embodied Water, L/kg 100
900

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
5.6
Resilience: Unit (Modulus of Resilience), kJ/m3 820
420
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
61
Strength to Weight: Axial, points 25
40
Strength to Weight: Bending, points 23
49
Thermal Diffusivity, mm2/s 6.7
28
Thermal Shock Resistance, points 26
18

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), % 81.8 to 88.5
0 to 0.010
Lithium (Li), % 0
0 to 0.2
Magnesium (Mg), % 0
88.9 to 93.4
Manganese (Mn), % 0 to 1.0
0 to 0.15
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 1.0
0 to 0.0050
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.5
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