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WE54A Magnesium vs. AISI 334 Stainless Steel

WE54A magnesium belongs to the magnesium alloys classification, while AISI 334 stainless steel belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (8, 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 334 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 85
180
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
77
Shear Strength, MPa 150 to 170
360
Tensile Strength: Ultimate (UTS), MPa 270 to 300
540
Tensile Strength: Yield (Proof), MPa 180
190

Thermal Properties

Latent Heat of Fusion, J/g 330
290
Maximum Temperature: Mechanical, °C 170
1000
Melting Completion (Liquidus), °C 640
1410
Melting Onset (Solidus), °C 570
1370
Specific Heat Capacity, J/kg-K 960
480
Thermal Expansion, µm/m-K 25
16

Otherwise Unclassified Properties

Base Metal Price, % relative 34
22
Density, g/cm3 1.9
7.9
Embodied Carbon, kg CO2/kg material 29
4.1
Embodied Energy, MJ/kg 260
59
Embodied Water, L/kg 900
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 10 to 14
140
Resilience: Unit (Modulus of Resilience), kJ/m3 360 to 380
96
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 62
25
Strength to Weight: Axial, points 39 to 43
19
Strength to Weight: Bending, points 49 to 51
19
Thermal Shock Resistance, points 18 to 19
12

Alloy Composition

Aluminum (Al), % 0
0.15 to 0.6
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
18 to 20
Copper (Cu), % 0 to 0.030
0
Iron (Fe), % 0 to 0.010
55.7 to 62.7
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 88.7 to 93.4
0
Manganese (Mn), % 0 to 0.030
0 to 1.0
Nickel (Ni), % 0 to 0.0050
19 to 21
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.010
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0
0.15 to 0.6
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