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AZ61A Magnesium vs. EN 1.4303 Stainless Steel

AZ61A magnesium belongs to the magnesium alloys classification, while EN 1.4303 stainless steel belongs to the iron alloys. There are 30 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 AZ61A magnesium and the bottom bar is EN 1.4303 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
200
Elongation at Break, % 11
13 to 49
Fatigue Strength, MPa 130
220 to 320
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
77
Shear Strength, MPa 150
420 to 540
Tensile Strength: Ultimate (UTS), MPa 280
590 to 900
Tensile Strength: Yield (Proof), MPa 170
230 to 560

Thermal Properties

Latent Heat of Fusion, J/g 350
290
Maximum Temperature: Mechanical, °C 120
940
Melting Completion (Liquidus), °C 600
1420
Melting Onset (Solidus), °C 530
1380
Specific Heat Capacity, J/kg-K 990
480
Thermal Conductivity, W/m-K 79
15
Thermal Expansion, µm/m-K 27
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 62
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 12
17
Density, g/cm3 1.7
7.8
Embodied Carbon, kg CO2/kg material 23
3.2
Embodied Energy, MJ/kg 160
46
Embodied Water, L/kg 980
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27
110 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 310
140 to 800
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 69
25
Strength to Weight: Axial, points 46
21 to 32
Strength to Weight: Bending, points 56
20 to 26
Thermal Diffusivity, mm2/s 47
4.0
Thermal Shock Resistance, points 17
13 to 20

Alloy Composition


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Aluminum (Al), % 5.5 to 7.2
0
Carbon (C), % 0
0 to 0.060
Chromium (Cr), % 0
17 to 19
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0 to 0.0050
64.8 to 72
Magnesium (Mg), % 90.3 to 93.9
0
Manganese (Mn), % 0.15 to 0.5
0 to 2.0
Nickel (Ni), % 0 to 0.0050
11 to 13
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.1
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Zinc (Zn), % 0.4 to 1.5
0
Residuals, % 0 to 0.3
0