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ACI-ASTM CK35MN Steel vs. EN-MC35110 Magnesium

ACI-ASTM CK35MN 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 (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 ACI-ASTM CK35MN steel and the bottom bar is EN-MC35110 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
63
Elastic (Young's, Tensile) Modulus, GPa 210
45
Elongation at Break, % 40
3.1
Fatigue Strength, MPa 270
110
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 81
18
Tensile Strength: Ultimate (UTS), MPa 650
230
Tensile Strength: Yield (Proof), MPa 310
150

Thermal Properties

Latent Heat of Fusion, J/g 310
330
Maximum Temperature: Mechanical, °C 1100
140
Melting Completion (Liquidus), °C 1460
600
Melting Onset (Solidus), °C 1410
520
Specific Heat Capacity, J/kg-K 470
970
Thermal Conductivity, W/m-K 12
110
Thermal Expansion, µm/m-K 16
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
27
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
130

Otherwise Unclassified Properties

Base Metal Price, % relative 31
18
Density, g/cm3 8.0
1.9
Embodied Carbon, kg CO2/kg material 5.9
24
Embodied Energy, MJ/kg 81
170
Embodied Water, L/kg 210
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
6.3
Resilience: Unit (Modulus of Resilience), kJ/m3 240
260
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
63
Strength to Weight: Axial, points 22
34
Strength to Weight: Bending, points 21
44
Thermal Diffusivity, mm2/s 3.3
61
Thermal Shock Resistance, points 14
14

Alloy Composition

Carbon (C), % 0 to 0.035
0
Chromium (Cr), % 22 to 24
0
Copper (Cu), % 0 to 0.4
0 to 0.030
Iron (Fe), % 43.4 to 51.8
0 to 0.010
Magnesium (Mg), % 0
92 to 95.4
Manganese (Mn), % 0 to 2.0
0 to 0.15
Molybdenum (Mo), % 6.0 to 6.8
0
Nickel (Ni), % 20 to 22
0 to 0.0050
Nitrogen (N), % 0.21 to 0.32
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 1.0
0 to 0.010
Sulfur (S), % 0 to 0.020
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