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WE43B Magnesium vs. EN 1.4501 Stainless Steel

WE43B magnesium belongs to the magnesium alloys classification, while EN 1.4501 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (5, 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 WE43B magnesium and the bottom bar is EN 1.4501 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
200
Elongation at Break, % 2.2
27
Fatigue Strength, MPa 110
430
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 17
80
Shear Strength, MPa 140
540
Tensile Strength: Ultimate (UTS), MPa 250
830
Tensile Strength: Yield (Proof), MPa 200
600

Thermal Properties

Latent Heat of Fusion, J/g 330
300
Maximum Temperature: Mechanical, °C 180
1100
Melting Completion (Liquidus), °C 640
1460
Melting Onset (Solidus), °C 550
1410
Specific Heat Capacity, J/kg-K 960
470
Thermal Conductivity, W/m-K 51
15
Thermal Expansion, µm/m-K 27
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 53
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 34
22
Density, g/cm3 1.9
7.9
Embodied Carbon, kg CO2/kg material 28
4.1
Embodied Energy, MJ/kg 250
57
Embodied Water, L/kg 910
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.2
210
Resilience: Unit (Modulus of Resilience), kJ/m3 430
870
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 61
25
Strength to Weight: Axial, points 36
29
Strength to Weight: Bending, points 46
25
Thermal Diffusivity, mm2/s 28
4.0
Thermal Shock Resistance, points 15
22

Alloy Composition

Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
24 to 26
Copper (Cu), % 0 to 0.020
0.5 to 1.0
Iron (Fe), % 0 to 0.010
57.6 to 65.8
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 89.8 to 93.5
0
Manganese (Mn), % 0 to 0.030
0 to 1.0
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 0 to 0.0050
6.0 to 8.0
Nitrogen (N), % 0
0.2 to 0.3
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Tungsten (W), % 0
0.5 to 1.0
Unspecified Rare Earths, % 2.4 to 4.4
0
Yttrium (Y), % 3.7 to 4.3
0
Zinc (Zn), % 0 to 0.2
0
Zirconium (Zr), % 0.4 to 1.0
0