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AISI 205 Stainless Steel vs. EN-MC65120 Magnesium

AISI 205 stainless steel belongs to the iron alloys classification, while EN-MC65120 magnesium belongs to the magnesium alloys. There are 27 material properties with values for both materials. Properties with values for just one material (6, 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 EN-MC65120 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 440
55
Elastic (Young's, Tensile) Modulus, GPa 200
45
Elongation at Break, % 11 to 51
3.1
Fatigue Strength, MPa 410 to 640
80
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
17
Shear Strength, MPa 560 to 850
92
Tensile Strength: Ultimate (UTS), MPa 800 to 1430
160
Tensile Strength: Yield (Proof), MPa 450 to 1100
110

Thermal Properties

Latent Heat of Fusion, J/g 280
330
Maximum Temperature: Mechanical, °C 880
180
Melting Completion (Liquidus), °C 1380
590
Melting Onset (Solidus), °C 1340
520
Specific Heat Capacity, J/kg-K 480
970
Thermal Expansion, µm/m-K 18
26

Otherwise Unclassified Properties

Base Metal Price, % relative 11
25
Density, g/cm3 7.6
1.9
Embodied Carbon, kg CO2/kg material 2.6
25
Embodied Energy, MJ/kg 37
190
Embodied Water, L/kg 150
930

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 430
4.4
Resilience: Unit (Modulus of Resilience), kJ/m3 510 to 3060
140
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 26
62
Strength to Weight: Axial, points 29 to 52
23
Strength to Weight: Bending, points 25 to 37
34
Thermal Shock Resistance, points 16 to 29
9.8

Alloy Composition

Carbon (C), % 0.12 to 0.25
0
Chromium (Cr), % 16.5 to 18.5
0
Copper (Cu), % 0
0 to 0.030
Iron (Fe), % 62.6 to 68.1
0 to 0.010
Magnesium (Mg), % 0
91.8 to 95.1
Manganese (Mn), % 14 to 15.5
0 to 0.15
Nickel (Ni), % 1.0 to 1.7
0 to 0.0050
Nitrogen (N), % 0.32 to 0.4
0
Phosphorus (P), % 0 to 0.060
0
Silicon (Si), % 0 to 1.0
0 to 0.010
Sulfur (S), % 0 to 0.030
0
Unspecified Rare Earths, % 0
2.5 to 4.0
Zinc (Zn), % 0
2.0 to 3.0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.010