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AWS ERTi-1 vs. AZ31C Magnesium

AWS ERTi-1 belongs to the titanium alloys classification, while AZ31C magnesium belongs to the magnesium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (1, 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 AWS ERTi-1 and the bottom bar is AZ31C magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
45
Elongation at Break, % 24
12
Fatigue Strength, MPa 120
150
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 41
17
Tensile Strength: Ultimate (UTS), MPa 240
260
Tensile Strength: Yield (Proof), MPa 170
200

Thermal Properties

Latent Heat of Fusion, J/g 420
350
Maximum Temperature: Mechanical, °C 320
110
Melting Completion (Liquidus), °C 1670
600
Melting Onset (Solidus), °C 1620
550
Specific Heat Capacity, J/kg-K 540
990
Thermal Conductivity, W/m-K 21
130
Thermal Expansion, µm/m-K 8.7
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
19
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
98

Otherwise Unclassified Properties

Base Metal Price, % relative 37
12
Density, g/cm3 4.5
1.7
Embodied Carbon, kg CO2/kg material 31
23
Embodied Energy, MJ/kg 510
160
Embodied Water, L/kg 110
970

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 52
28
Resilience: Unit (Modulus of Resilience), kJ/m3 140
440
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 35
70
Strength to Weight: Axial, points 15
42
Strength to Weight: Bending, points 19
53
Thermal Diffusivity, mm2/s 8.7
74
Thermal Shock Resistance, points 19
16

Alloy Composition

Aluminum (Al), % 0
2.4 to 3.6
Carbon (C), % 0 to 0.030
0
Copper (Cu), % 0
0 to 0.1
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.080
0
Magnesium (Mg), % 0
93.4 to 97
Manganese (Mn), % 0
0.15 to 1.0
Nickel (Ni), % 0
0 to 0.030
Nitrogen (N), % 0 to 0.012
0
Oxygen (O), % 0.030 to 0.1
0
Silicon (Si), % 0
0 to 0.1
Titanium (Ti), % 99.773 to 99.97
0
Zinc (Zn), % 0
0.5 to 1.5
Residuals, % 0
0 to 0.3