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ZE41A Magnesium vs. ASTM A572 Steel

ZE41A magnesium belongs to the magnesium alloys classification, while ASTM A572 steel belongs to the iron alloys. There are 31 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 ZE41A magnesium and the bottom bar is ASTM A572 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 63
140 to 190
Elastic (Young's, Tensile) Modulus, GPa 45
190
Elongation at Break, % 3.3
18 to 25
Fatigue Strength, MPa 98
240 to 340
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 18
73
Shear Strength, MPa 150
300 to 380
Tensile Strength: Ultimate (UTS), MPa 210
470 to 620
Tensile Strength: Yield (Proof), MPa 140
330 to 510

Thermal Properties

Latent Heat of Fusion, J/g 330
250
Maximum Temperature: Mechanical, °C 150
400
Melting Completion (Liquidus), °C 640
1460
Melting Onset (Solidus), °C 540
1420
Specific Heat Capacity, J/kg-K 970
470
Thermal Conductivity, W/m-K 110
51
Thermal Expansion, µm/m-K 27
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 130
8.2 to 8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 18
2.0
Density, g/cm3 1.9
7.8
Embodied Carbon, kg CO2/kg material 24
1.6
Embodied Energy, MJ/kg 170
22
Embodied Water, L/kg 940
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.1
100 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 220
290 to 690
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 63
24
Strength to Weight: Axial, points 31
17 to 22
Strength to Weight: Bending, points 41
17 to 21
Thermal Diffusivity, mm2/s 59
14
Thermal Shock Resistance, points 12
14 to 18