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EN 1.4982 Stainless Steel vs. ISO-WD21150 Magnesium

EN 1.4982 stainless steel belongs to the iron alloys classification, while ISO-WD21150 magnesium belongs to the magnesium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, 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 ISO-WD21150 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
45
Elongation at Break, % 28
5.7 to 11
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
17
Shear Strength, MPa 490
150 to 170
Tensile Strength: Ultimate (UTS), MPa 750
240 to 290
Tensile Strength: Yield (Proof), MPa 570
120 to 200

Thermal Properties

Latent Heat of Fusion, J/g 290
350
Maximum Temperature: Mechanical, °C 860
110
Melting Completion (Liquidus), °C 1430
600
Melting Onset (Solidus), °C 1390
550
Specific Heat Capacity, J/kg-K 470
990
Thermal Conductivity, W/m-K 13
100
Thermal Expansion, µm/m-K 16
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
19
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
100

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
980

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
15 to 24
Resilience: Unit (Modulus of Resilience), kJ/m3 830
160 to 460
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
70
Strength to Weight: Axial, points 27
40 to 48
Strength to Weight: Bending, points 23
52 to 58
Thermal Diffusivity, mm2/s 3.4
60
Thermal Shock Resistance, points 17
15 to 17

Alloy Composition

Aluminum (Al), % 0
2.4 to 3.6
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 0.050
Iron (Fe), % 61.8 to 69.7
0 to 0.0050
Magnesium (Mg), % 0
94 to 97
Manganese (Mn), % 5.5 to 7.0
0.15 to 0.4
Molybdenum (Mo), % 0.8 to 1.2
0
Nickel (Ni), % 9.0 to 11
0 to 0.0050
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
0.5 to 1.5
Residuals, % 0
0 to 0.3