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AZ61A Magnesium vs. EN 1.4935 Stainless Steel

AZ61A magnesium belongs to the magnesium alloys classification, while EN 1.4935 stainless steel belongs to the iron alloys. There are 30 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 AZ61A magnesium and the bottom bar is EN 1.4935 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
200
Elongation at Break, % 11
16 to 18
Fatigue Strength, MPa 130
350 to 400
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
76
Shear Strength, MPa 150
480 to 540
Tensile Strength: Ultimate (UTS), MPa 280
780 to 880
Tensile Strength: Yield (Proof), MPa 170
570 to 670

Thermal Properties

Latent Heat of Fusion, J/g 350
270
Maximum Temperature: Mechanical, °C 120
740
Melting Completion (Liquidus), °C 600
1460
Melting Onset (Solidus), °C 530
1420
Specific Heat Capacity, J/kg-K 990
470
Thermal Conductivity, W/m-K 79
24
Thermal Expansion, µm/m-K 27
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 62
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.0
Density, g/cm3 1.7
7.8
Embodied Carbon, kg CO2/kg material 23
2.9
Embodied Energy, MJ/kg 160
42
Embodied Water, L/kg 980
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27
130
Resilience: Unit (Modulus of Resilience), kJ/m3 310
830 to 1160
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 69
25
Strength to Weight: Axial, points 46
28 to 31
Strength to Weight: Bending, points 56
24 to 26
Thermal Diffusivity, mm2/s 47
6.5
Thermal Shock Resistance, points 17
27 to 30

Alloy Composition


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Aluminum (Al), % 5.5 to 7.2
0
Carbon (C), % 0
0.17 to 0.24
Chromium (Cr), % 0
11 to 12.5
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0 to 0.0050
83 to 86.7
Magnesium (Mg), % 90.3 to 93.9
0
Manganese (Mn), % 0.15 to 0.5
0.3 to 0.8
Molybdenum (Mo), % 0
0.8 to 1.2
Nickel (Ni), % 0 to 0.0050
0.3 to 0.8
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.1
0.1 to 0.5
Sulfur (S), % 0
0 to 0.015
Tungsten (W), % 0
0.4 to 0.6
Vanadium (V), % 0
0.2 to 0.35
Zinc (Zn), % 0.4 to 1.5
0
Residuals, % 0 to 0.3
0