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AS41B Magnesium vs. EN 1.4982 Stainless Steel

AS41B magnesium belongs to the magnesium alloys classification, while EN 1.4982 stainless steel belongs to the iron 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 AS41B magnesium and the bottom bar is EN 1.4982 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
200
Elongation at Break, % 6.0
28
Fatigue Strength, MPa 97
420
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 18
76
Shear Strength, MPa 120
490
Tensile Strength: Ultimate (UTS), MPa 210
750
Tensile Strength: Yield (Proof), MPa 140
570

Thermal Properties

Latent Heat of Fusion, J/g 370
290
Maximum Temperature: Mechanical, °C 110
860
Melting Completion (Liquidus), °C 620
1430
Melting Onset (Solidus), °C 570
1390
Specific Heat Capacity, J/kg-K 1000
470
Thermal Conductivity, W/m-K 68
13
Thermal Expansion, µm/m-K 26
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 92
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 12
22
Density, g/cm3 1.7
7.8
Embodied Carbon, kg CO2/kg material 23
4.9
Embodied Energy, MJ/kg 160
71
Embodied Water, L/kg 980
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
190
Resilience: Unit (Modulus of Resilience), kJ/m3 220
830
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 72
25
Strength to Weight: Axial, points 35
27
Strength to Weight: Bending, points 47
23
Thermal Diffusivity, mm2/s 41
3.4
Thermal Shock Resistance, points 13
17

Alloy Composition

Aluminum (Al), % 3.5 to 5.0
0
Boron (B), % 0
0.0030 to 0.0090
Carbon (C), % 0
0.070 to 0.13
Chromium (Cr), % 0
14 to 16
Copper (Cu), % 0 to 0.020
0
Iron (Fe), % 0 to 0.0035
61.8 to 69.7
Magnesium (Mg), % 92.7 to 95.7
0
Manganese (Mn), % 0.35 to 0.7
5.5 to 7.0
Molybdenum (Mo), % 0
0.8 to 1.2
Nickel (Ni), % 0 to 0.0020
9.0 to 11
Niobium (Nb), % 0
0.75 to 1.3
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0.5 to 1.5
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Vanadium (V), % 0
0.15 to 0.4
Zinc (Zn), % 0 to 0.12
0