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EN 1.0303 Steel vs. EZ33A Magnesium

EN 1.0303 steel belongs to the iron alloys classification, while EZ33A magnesium belongs to the magnesium 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 EN 1.0303 steel and the bottom bar is EZ33A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 84 to 120
55
Elastic (Young's, Tensile) Modulus, GPa 190
44
Elongation at Break, % 12 to 25
2.6
Fatigue Strength, MPa 150 to 230
70
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
17
Shear Strength, MPa 220 to 260
140
Tensile Strength: Ultimate (UTS), MPa 290 to 410
150
Tensile Strength: Yield (Proof), MPa 200 to 320
100

Thermal Properties

Latent Heat of Fusion, J/g 250
330
Maximum Temperature: Mechanical, °C 400
250
Melting Completion (Liquidus), °C 1470
640
Melting Onset (Solidus), °C 1430
570
Specific Heat Capacity, J/kg-K 470
970
Thermal Conductivity, W/m-K 53
100
Thermal Expansion, µm/m-K 12
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.9
24
Electrical Conductivity: Equal Weight (Specific), % IACS 7.9
110

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
25
Density, g/cm3 7.9
1.9
Embodied Carbon, kg CO2/kg material 1.4
25
Embodied Energy, MJ/kg 18
190
Embodied Water, L/kg 46
930

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 30 to 94
3.6
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 270
120
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
61
Strength to Weight: Axial, points 10 to 15
22
Strength to Weight: Bending, points 12 to 16
33
Thermal Diffusivity, mm2/s 14
54
Thermal Shock Resistance, points 9.2 to 13
9.2

Alloy Composition

Aluminum (Al), % 0.020 to 0.060
0
Carbon (C), % 0.020 to 0.060
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 99.335 to 99.71
0
Magnesium (Mg), % 0
91.5 to 95
Manganese (Mn), % 0.25 to 0.4
0
Nickel (Ni), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.1
0
Sulfur (S), % 0 to 0.025
0
Unspecified Rare Earths, % 0
2.5 to 4.0
Zinc (Zn), % 0
2.0 to 3.1
Zirconium (Zr), % 0
0.5 to 1.0
Residuals, % 0
0 to 0.3