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WE54A Magnesium vs. ASTM A148 Cast Steel

WE54A 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 (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 WE54A magnesium and the bottom bar is ASTM A148 cast steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 85
190 to 390
Elastic (Young's, Tensile) Modulus, GPa 44
190
Elongation at Break, % 4.3 to 5.6
5.7 to 25
Fatigue Strength, MPa 98 to 130
280 to 670
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 17
73
Tensile Strength: Ultimate (UTS), MPa 270 to 300
630 to 1300
Tensile Strength: Yield (Proof), MPa 180
390 to 1160

Thermal Properties

Latent Heat of Fusion, J/g 330
250
Maximum Temperature: Mechanical, °C 170
400 to 430
Melting Completion (Liquidus), °C 640
1460
Melting Onset (Solidus), °C 570
1420
Specific Heat Capacity, J/kg-K 960
470
Thermal Conductivity, W/m-K 52
37 to 47
Thermal Expansion, µm/m-K 25
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
7.3 to 7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 47
8.3 to 8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 34
2.3 to 3.3
Density, g/cm3 1.9
7.8
Embodied Carbon, kg CO2/kg material 29
1.5 to 1.7
Embodied Energy, MJ/kg 260
20 to 22
Embodied Water, L/kg 900
48 to 53

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 10 to 14
71 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 360 to 380
400 to 3570
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 62
24
Strength to Weight: Axial, points 39 to 43
22 to 46
Strength to Weight: Bending, points 49 to 51
21 to 34
Thermal Diffusivity, mm2/s 28
9.9 to 13
Thermal Shock Resistance, points 18 to 19
18 to 38

Comparable Variants