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EN 1.4980 Stainless Steel vs. EN-MC21110 Magnesium

EN 1.4980 stainless steel belongs to the iron alloys classification, while EN-MC21110 magnesium belongs to the magnesium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, 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 1.4980 stainless steel and the bottom bar is EN-MC21110 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
46
Elongation at Break, % 17
2.8 to 6.7
Fatigue Strength, MPa 410
75 to 78
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 75
18
Shear Strength, MPa 630
120 to 160
Tensile Strength: Ultimate (UTS), MPa 1030
200 to 270
Tensile Strength: Yield (Proof), MPa 680
100 to 120

Thermal Properties

Latent Heat of Fusion, J/g 300
350
Maximum Temperature: Mechanical, °C 920
130
Melting Completion (Liquidus), °C 1430
600
Melting Onset (Solidus), °C 1380
500
Specific Heat Capacity, J/kg-K 470
990
Thermal Conductivity, W/m-K 13
80
Thermal Expansion, µm/m-K 17
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
12
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
61

Otherwise Unclassified Properties

Base Metal Price, % relative 26
12
Density, g/cm3 7.9
1.7
Embodied Carbon, kg CO2/kg material 6.0
23
Embodied Energy, MJ/kg 87
160
Embodied Water, L/kg 170
990

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
4.9 to 14
Resilience: Unit (Modulus of Resilience), kJ/m3 1180
120 to 150
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
69
Strength to Weight: Axial, points 36
33 to 44
Strength to Weight: Bending, points 28
45 to 54
Thermal Diffusivity, mm2/s 3.5
47
Thermal Shock Resistance, points 22
12 to 16

Alloy Composition

Aluminum (Al), % 0 to 0.35
7.0 to 8.7
Boron (B), % 0.0030 to 0.010
0
Carbon (C), % 0.030 to 0.080
0
Chromium (Cr), % 13.5 to 16
0
Copper (Cu), % 0
0 to 0.030
Iron (Fe), % 49.2 to 58.5
0 to 0.0050
Magnesium (Mg), % 0
89.6 to 92.6
Manganese (Mn), % 1.0 to 2.0
0.1 to 0.35
Molybdenum (Mo), % 1.0 to 1.5
0
Nickel (Ni), % 24 to 27
0 to 0.0020
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 1.0
0 to 0.2
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 1.9 to 2.3
0
Vanadium (V), % 0.1 to 0.5
0
Zinc (Zn), % 0
0.35 to 1.0
Residuals, % 0
0 to 0.010