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EN 1.4982 Stainless Steel vs. EN-MC21230 Magnesium

EN 1.4982 stainless steel belongs to the iron alloys classification, while EN-MC21230 magnesium belongs to the magnesium alloys. There are 31 material properties with values for both materials. Properties with values for just one material (3, 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 1.4982 stainless steel and the bottom bar is EN-MC21230 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
63
Elastic (Young's, Tensile) Modulus, GPa 200
45
Elongation at Break, % 28
10
Fatigue Strength, MPa 420
99
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
18
Shear Strength, MPa 490
130
Tensile Strength: Ultimate (UTS), MPa 750
220
Tensile Strength: Yield (Proof), MPa 570
140

Thermal Properties

Latent Heat of Fusion, J/g 290
350
Maximum Temperature: Mechanical, °C 860
120
Melting Completion (Liquidus), °C 1430
600
Melting Onset (Solidus), °C 1390
520
Specific Heat Capacity, J/kg-K 470
1000
Thermal Conductivity, W/m-K 13
72
Thermal Expansion, µm/m-K 16
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
12
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
63

Otherwise Unclassified Properties

Base Metal Price, % relative 22
12
Density, g/cm3 7.8
1.7
Embodied Carbon, kg CO2/kg material 4.9
23
Embodied Energy, MJ/kg 71
160
Embodied Water, L/kg 150
990

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
19
Resilience: Unit (Modulus of Resilience), kJ/m3 830
200
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
71
Strength to Weight: Axial, points 27
36
Strength to Weight: Bending, points 23
48
Thermal Diffusivity, mm2/s 3.4
43
Thermal Shock Resistance, points 17
13

Alloy Composition


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Aluminum (Al), % 0
5.5 to 8.5
Boron (B), % 0.0030 to 0.0090
0
Carbon (C), % 0.070 to 0.13
0
Chromium (Cr), % 14 to 16
0
Copper (Cu), % 0
0 to 0.010
Iron (Fe), % 61.8 to 69.7
0 to 0.0050
Magnesium (Mg), % 0
90.5 to 94.4
Manganese (Mn), % 5.5 to 7.0
0.1 to 0.6
Molybdenum (Mo), % 0.8 to 1.2
0
Nickel (Ni), % 9.0 to 11
0 to 0.0020
Niobium (Nb), % 0.75 to 1.3
0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.1
Sulfur (S), % 0 to 0.030
0
Vanadium (V), % 0.15 to 0.4
0
Zinc (Zn), % 0
0 to 0.3
Residuals, % 0
0 to 0.010