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EN 1.4729 Stainless Steel vs. EN-MC35110 Magnesium

EN 1.4729 stainless steel belongs to the iron alloys classification, while EN-MC35110 magnesium belongs to the magnesium alloys. There are 22 material properties with values for both materials. Properties with values for just one material (11, 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 1.4729 stainless steel and the bottom bar is EN-MC35110 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
63
Elastic (Young's, Tensile) Modulus, GPa 190
45
Elongation at Break, % 15
3.1
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
18

Thermal Properties

Latent Heat of Fusion, J/g 300
330
Maximum Temperature: Mechanical, °C 850
140
Melting Completion (Liquidus), °C 1420
600
Melting Onset (Solidus), °C 1380
520
Specific Heat Capacity, J/kg-K 490
970
Thermal Conductivity, W/m-K 24
110
Thermal Expansion, µm/m-K 10
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
27
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
130

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
18
Density, g/cm3 7.6
1.9
Embodied Carbon, kg CO2/kg material 2.1
24
Embodied Energy, MJ/kg 29
170
Embodied Water, L/kg 100
940

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
63
Thermal Diffusivity, mm2/s 6.5
61

Alloy Composition

Carbon (C), % 0.3 to 0.5
0
Chromium (Cr), % 12 to 14
0
Copper (Cu), % 0
0 to 0.030
Iron (Fe), % 80.4 to 86.7
0 to 0.010
Magnesium (Mg), % 0
92 to 95.4
Manganese (Mn), % 0 to 1.0
0 to 0.15
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 1.0
0 to 0.0050
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 1.0 to 2.5
0 to 0.010
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 0.010