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EN-MC32110 Magnesium vs. AISI 317 Stainless Steel

EN-MC32110 magnesium belongs to the magnesium alloys classification, while AISI 317 stainless steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (2, 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 EN-MC32110 magnesium and the bottom bar is AISI 317 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 60
170 to 220
Elastic (Young's, Tensile) Modulus, GPa 49
200
Elongation at Break, % 2.2
35 to 55
Fatigue Strength, MPa 80
250 to 330
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 19
79
Shear Strength, MPa 120
420 to 470
Tensile Strength: Ultimate (UTS), MPa 220
580 to 710
Tensile Strength: Yield (Proof), MPa 140
250 to 420

Thermal Properties

Latent Heat of Fusion, J/g 330
290
Maximum Temperature: Mechanical, °C 99
590
Melting Completion (Liquidus), °C 600
1400
Melting Onset (Solidus), °C 500
1380
Specific Heat Capacity, J/kg-K 950
470
Thermal Conductivity, W/m-K 120
15
Thermal Expansion, µm/m-K 26
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 140
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 13
21
Density, g/cm3 2.1
7.9
Embodied Carbon, kg CO2/kg material 22
4.3
Embodied Energy, MJ/kg 150
59
Embodied Water, L/kg 920
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.3
210 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 210
150 to 430
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 58
25
Strength to Weight: Axial, points 29
20 to 25
Strength to Weight: Bending, points 38
20 to 22
Thermal Diffusivity, mm2/s 58
4.1
Thermal Shock Resistance, points 12
12 to 15

Alloy Composition

Aluminum (Al), % 0 to 0.2
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
18 to 20
Copper (Cu), % 2.4 to 3.0
0
Iron (Fe), % 0 to 0.050
58 to 68
Magnesium (Mg), % 89.3 to 91.9
0
Manganese (Mn), % 0.25 to 0.75
0 to 2.0
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 0 to 0.010
11 to 15
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.2
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 5.5 to 6.5
0
Residuals, % 0 to 0.010
0