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EN 1.3956 Stainless Steel vs. EN-MC65210 Magnesium

EN 1.3956 stainless steel belongs to the iron alloys classification, while EN-MC65210 magnesium belongs to the magnesium alloys. There are 23 material properties with values for both materials. Properties with values for just one material (10, 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 1.3956 stainless steel and the bottom bar is EN-MC65210 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
44
Elongation at Break, % 27
2.8
Fatigue Strength, MPa 240
110
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
17
Tensile Strength: Ultimate (UTS), MPa 650
270
Tensile Strength: Yield (Proof), MPa 330
200

Thermal Properties

Latent Heat of Fusion, J/g 300
340
Maximum Temperature: Mechanical, °C 1080
170
Melting Completion (Liquidus), °C 1420
610
Melting Onset (Solidus), °C 1380
540
Specific Heat Capacity, J/kg-K 480
970
Thermal Expansion, µm/m-K 13
26

Otherwise Unclassified Properties

Density, g/cm3 7.8
2.0
Embodied Carbon, kg CO2/kg material 4.8
27
Embodied Energy, MJ/kg 68
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
6.9
Resilience: Unit (Modulus of Resilience), kJ/m3 270
450
Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 25
59
Strength to Weight: Axial, points 23
38
Strength to Weight: Bending, points 21
47
Thermal Shock Resistance, points 18
17

Alloy Composition

Carbon (C), % 0 to 0.060
0
Chromium (Cr), % 20.5 to 23.5
0
Copper (Cu), % 0
0 to 0.030
Iron (Fe), % 51.9 to 62.1
0 to 0.010
Magnesium (Mg), % 0
92.6 to 95.6
Manganese (Mn), % 4.0 to 6.0
0 to 0.15
Molybdenum (Mo), % 1.5 to 3.0
0
Nickel (Ni), % 11.5 to 13.5
0 to 0.0050
Niobium (Nb), % 0.1 to 0.3
0
Nitrogen (N), % 0.2 to 0.4
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.010
Silver (Ag), % 0
2.0 to 3.0
Sulfur (S), % 0 to 0.030
0
Unspecified Rare Earths, % 0
2.0 to 3.0
Vanadium (V), % 0.1 to 0.3
0
Zinc (Zn), % 0
0 to 0.2
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.010