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WE54A Magnesium vs. AISI 201LN Stainless Steel

WE54A magnesium belongs to the magnesium alloys classification, while AISI 201LN stainless steel belongs to the iron 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 WE54A magnesium and the bottom bar is AISI 201LN stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 85
210 to 320
Elastic (Young's, Tensile) Modulus, GPa 44
200
Elongation at Break, % 4.3 to 5.6
25 to 51
Fatigue Strength, MPa 98 to 130
340 to 540
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
77
Shear Strength, MPa 150 to 170
530 to 680
Tensile Strength: Ultimate (UTS), MPa 270 to 300
740 to 1060
Tensile Strength: Yield (Proof), MPa 180
350 to 770

Thermal Properties

Latent Heat of Fusion, J/g 330
280
Maximum Temperature: Mechanical, °C 170
880
Melting Completion (Liquidus), °C 640
1410
Melting Onset (Solidus), °C 570
1370
Specific Heat Capacity, J/kg-K 960
480
Thermal Conductivity, W/m-K 52
15
Thermal Expansion, µm/m-K 25
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 47
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 34
12
Density, g/cm3 1.9
7.7
Embodied Carbon, kg CO2/kg material 29
2.6
Embodied Energy, MJ/kg 260
38
Embodied Water, L/kg 900
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 10 to 14
230 to 310
Resilience: Unit (Modulus of Resilience), kJ/m3 360 to 380
310 to 1520
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 62
25
Strength to Weight: Axial, points 39 to 43
27 to 38
Strength to Weight: Bending, points 49 to 51
24 to 30
Thermal Diffusivity, mm2/s 28
4.0
Thermal Shock Resistance, points 18 to 19
16 to 23

Alloy Composition

Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
16 to 17.5
Copper (Cu), % 0 to 0.030
0 to 1.0
Iron (Fe), % 0 to 0.010
67.9 to 73.5
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 88.7 to 93.4
0
Manganese (Mn), % 0 to 0.030
6.4 to 7.5
Nickel (Ni), % 0 to 0.0050
4.0 to 5.0
Nitrogen (N), % 0
0.1 to 0.25
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.010
0 to 0.75
Sulfur (S), % 0
0 to 0.015
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