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EN-MC32110 Magnesium vs. ASTM A232 Spring Steel

EN-MC32110 magnesium belongs to the magnesium alloys classification, while ASTM A232 spring 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-MC32110 magnesium and the bottom bar is ASTM A232 spring steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 60
540
Elastic (Young's, Tensile) Modulus, GPa 49
190
Elongation at Break, % 2.2
14
Fatigue Strength, MPa 80
1040
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 19
73
Shear Strength, MPa 120
1090
Tensile Strength: Ultimate (UTS), MPa 220
1790
Tensile Strength: Yield (Proof), MPa 140
1610

Thermal Properties

Latent Heat of Fusion, J/g 330
250
Maximum Temperature: Mechanical, °C 99
420
Melting Completion (Liquidus), °C 600
1460
Melting Onset (Solidus), °C 500
1410
Specific Heat Capacity, J/kg-K 950
470
Thermal Conductivity, W/m-K 120
52
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 140
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 13
2.3
Density, g/cm3 2.1
7.8
Embodied Carbon, kg CO2/kg material 22
2.0
Embodied Energy, MJ/kg 150
28
Embodied Water, L/kg 920
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.3
250
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 58
24
Strength to Weight: Axial, points 29
64
Strength to Weight: Bending, points 38
42
Thermal Diffusivity, mm2/s 58
14
Thermal Shock Resistance, points 12
53

Alloy Composition

Aluminum (Al), % 0 to 0.2
0
Carbon (C), % 0
0.48 to 0.53
Chromium (Cr), % 0
0.8 to 1.1
Copper (Cu), % 2.4 to 3.0
0
Iron (Fe), % 0 to 0.050
96.8 to 97.7
Magnesium (Mg), % 89.3 to 91.9
0
Manganese (Mn), % 0.25 to 0.75
0.7 to 0.9
Nickel (Ni), % 0 to 0.010
0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.2
0.15 to 0.35
Sulfur (S), % 0
0 to 0.035
Vanadium (V), % 0
0.15 to 0.3
Zinc (Zn), % 5.5 to 6.5
0
Residuals, % 0 to 0.010
0