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WE54A Magnesium vs. EN 1.4458 Stainless Steel

WE54A magnesium belongs to the magnesium alloys classification, while EN 1.4458 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 WE54A magnesium and the bottom bar is EN 1.4458 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 85
150
Elastic (Young's, Tensile) Modulus, GPa 44
200
Elongation at Break, % 4.3 to 5.6
34
Fatigue Strength, MPa 98 to 130
150
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
78
Tensile Strength: Ultimate (UTS), MPa 270 to 300
510
Tensile Strength: Yield (Proof), MPa 180
190

Thermal Properties

Latent Heat of Fusion, J/g 330
300
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 640
1420
Melting Onset (Solidus), °C 570
1370
Specific Heat Capacity, J/kg-K 960
470
Thermal Conductivity, W/m-K 52
16
Thermal Expansion, µm/m-K 25
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 47
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 34
30
Density, g/cm3 1.9
8.0
Embodied Carbon, kg CO2/kg material 29
5.4
Embodied Energy, MJ/kg 260
75
Embodied Water, L/kg 900
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 10 to 14
140
Resilience: Unit (Modulus of Resilience), kJ/m3 360 to 380
89
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 62
24
Strength to Weight: Axial, points 39 to 43
17
Strength to Weight: Bending, points 49 to 51
18
Thermal Diffusivity, mm2/s 28
4.2
Thermal Shock Resistance, points 18 to 19
12

Alloy Composition

Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
19 to 22
Copper (Cu), % 0 to 0.030
0 to 2.0
Iron (Fe), % 0 to 0.010
40.2 to 53
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 88.7 to 93.4
0
Manganese (Mn), % 0 to 0.030
0 to 2.0
Molybdenum (Mo), % 0
2.0 to 2.5
Nickel (Ni), % 0 to 0.0050
26 to 30
Nitrogen (N), % 0
0 to 0.2
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.010
0 to 1.0
Sulfur (S), % 0
0 to 0.025
Unspecified Rare Earths, % 1.5 to 4.0
0
Yttrium (Y), % 4.8 to 5.5
0
Zinc (Zn), % 0 to 0.2
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.3
0