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WE54A Magnesium vs. AISI 302 Stainless Steel

WE54A magnesium belongs to the magnesium alloys classification, while AISI 302 stainless steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (4, 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 AISI 302 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 85
170 to 440
Elastic (Young's, Tensile) Modulus, GPa 44
200
Elongation at Break, % 4.3 to 5.6
4.5 to 46
Fatigue Strength, MPa 98 to 130
210 to 520
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
77
Shear Strength, MPa 150 to 170
400 to 830
Tensile Strength: Ultimate (UTS), MPa 270 to 300
580 to 1430
Tensile Strength: Yield (Proof), MPa 180
230 to 1100

Thermal Properties

Latent Heat of Fusion, J/g 330
280
Maximum Temperature: Mechanical, °C 170
710
Melting Completion (Liquidus), °C 640
1420
Melting Onset (Solidus), °C 570
1400
Specific Heat Capacity, J/kg-K 960
480
Thermal Conductivity, W/m-K 52
16
Thermal Expansion, µm/m-K 25
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 47
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 34
15
Density, g/cm3 1.9
7.8
Embodied Carbon, kg CO2/kg material 29
3.0
Embodied Energy, MJ/kg 260
42
Embodied Water, L/kg 900
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 10 to 14
59 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 360 to 380
140 to 3070
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 62
25
Strength to Weight: Axial, points 39 to 43
21 to 51
Strength to Weight: Bending, points 49 to 51
20 to 36
Thermal Diffusivity, mm2/s 28
4.4
Thermal Shock Resistance, points 18 to 19
12 to 31

Alloy Composition

Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0
17 to 19
Copper (Cu), % 0 to 0.030
0
Iron (Fe), % 0 to 0.010
67.9 to 75
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
Nickel (Ni), % 0 to 0.0050
8.0 to 10
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.010
0 to 0.75
Sulfur (S), % 0
0 to 0.030
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