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AISI 201L Stainless Steel vs. ZE41A Magnesium

AISI 201L stainless steel belongs to the iron alloys classification, while ZE41A magnesium belongs to the magnesium alloys. There are 31 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 AISI 201L stainless steel and the bottom bar is ZE41A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 320
63
Elastic (Young's, Tensile) Modulus, GPa 200
45
Elongation at Break, % 22 to 46
3.3
Fatigue Strength, MPa 270 to 530
98
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
18
Shear Strength, MPa 520 to 660
150
Tensile Strength: Ultimate (UTS), MPa 740 to 1040
210
Tensile Strength: Yield (Proof), MPa 290 to 790
140

Thermal Properties

Latent Heat of Fusion, J/g 280
330
Maximum Temperature: Mechanical, °C 880
150
Melting Completion (Liquidus), °C 1410
640
Melting Onset (Solidus), °C 1370
540
Specific Heat Capacity, J/kg-K 480
970
Thermal Conductivity, W/m-K 15
110
Thermal Expansion, µm/m-K 17
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
27
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
130

Otherwise Unclassified Properties

Base Metal Price, % relative 12
18
Density, g/cm3 7.7
1.9
Embodied Carbon, kg CO2/kg material 2.6
24
Embodied Energy, MJ/kg 38
170
Embodied Water, L/kg 140
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 210 to 300
6.1
Resilience: Unit (Modulus of Resilience), kJ/m3 220 to 1570
220
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
63
Strength to Weight: Axial, points 27 to 37
31
Strength to Weight: Bending, points 24 to 30
41
Thermal Diffusivity, mm2/s 4.0
59
Thermal Shock Resistance, points 16 to 23
12

Alloy Composition

Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 16 to 18
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 67.9 to 75
0
Magnesium (Mg), % 0
91.7 to 95.4
Manganese (Mn), % 5.5 to 7.5
0 to 0.15
Nickel (Ni), % 3.5 to 5.5
0 to 0.010
Nitrogen (N), % 0 to 0.25
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
0
Sulfur (S), % 0 to 0.030
0
Unspecified Rare Earths, % 0
0.75 to 1.8
Zinc (Zn), % 0
3.5 to 5.0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3