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EN-MC21110 Magnesium vs. ASTM A148 Cast Steel

EN-MC21110 magnesium belongs to the magnesium alloys classification, while ASTM A148 cast steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, 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-MC21110 magnesium and the bottom bar is ASTM A148 cast steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 58 to 63
190 to 390
Elastic (Young's, Tensile) Modulus, GPa 46
190
Elongation at Break, % 2.8 to 6.7
5.7 to 25
Fatigue Strength, MPa 75 to 78
280 to 670
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 18
73
Tensile Strength: Ultimate (UTS), MPa 200 to 270
630 to 1300
Tensile Strength: Yield (Proof), MPa 100 to 120
390 to 1160

Thermal Properties

Latent Heat of Fusion, J/g 350
250
Maximum Temperature: Mechanical, °C 130
400 to 430
Melting Completion (Liquidus), °C 600
1460
Melting Onset (Solidus), °C 500
1420
Specific Heat Capacity, J/kg-K 990
470
Thermal Conductivity, W/m-K 80
37 to 47
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
7.3 to 7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 61
8.3 to 8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 12
2.3 to 3.3
Density, g/cm3 1.7
7.8
Embodied Carbon, kg CO2/kg material 23
1.5 to 1.7
Embodied Energy, MJ/kg 160
20 to 22
Embodied Water, L/kg 990
48 to 53

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.9 to 14
71 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 120 to 150
400 to 3570
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 69
24
Strength to Weight: Axial, points 33 to 44
22 to 46
Strength to Weight: Bending, points 45 to 54
21 to 34
Thermal Diffusivity, mm2/s 47
9.9 to 13
Thermal Shock Resistance, points 12 to 16
18 to 38

Comparable Variants