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AISI 205 Stainless Steel vs. ZE41A Magnesium

AISI 205 stainless steel belongs to the iron alloys classification, while ZE41A magnesium belongs to the magnesium alloys. There are 27 material properties with values for both materials. Properties with values for just one material (9, 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 205 stainless steel and the bottom bar is ZE41A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 440
63
Elastic (Young's, Tensile) Modulus, GPa 200
45
Elongation at Break, % 11 to 51
3.3
Fatigue Strength, MPa 410 to 640
98
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
18
Shear Strength, MPa 560 to 850
150
Tensile Strength: Ultimate (UTS), MPa 800 to 1430
210
Tensile Strength: Yield (Proof), MPa 450 to 1100
140

Thermal Properties

Latent Heat of Fusion, J/g 280
330
Maximum Temperature: Mechanical, °C 880
150
Melting Completion (Liquidus), °C 1380
640
Melting Onset (Solidus), °C 1340
540
Specific Heat Capacity, J/kg-K 480
970
Thermal Expansion, µm/m-K 18
27

Otherwise Unclassified Properties

Base Metal Price, % relative 11
18
Density, g/cm3 7.6
1.9
Embodied Carbon, kg CO2/kg material 2.6
24
Embodied Energy, MJ/kg 37
170
Embodied Water, L/kg 150
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 430
6.1
Resilience: Unit (Modulus of Resilience), kJ/m3 510 to 3060
220
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 26
63
Strength to Weight: Axial, points 29 to 52
31
Strength to Weight: Bending, points 25 to 37
41
Thermal Shock Resistance, points 16 to 29
12

Alloy Composition

Carbon (C), % 0.12 to 0.25
0
Chromium (Cr), % 16.5 to 18.5
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 62.6 to 68.1
0
Magnesium (Mg), % 0
91.7 to 95.4
Manganese (Mn), % 14 to 15.5
0 to 0.15
Nickel (Ni), % 1.0 to 1.7
0 to 0.010
Nitrogen (N), % 0.32 to 0.4
0
Phosphorus (P), % 0 to 0.060
0
Silicon (Si), % 0 to 1.0
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