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AWS ERTi-7 vs. ZC63A Magnesium

AWS ERTi-7 belongs to the titanium alloys classification, while ZC63A magnesium belongs to the magnesium alloys. There are 28 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 AWS ERTi-7 and the bottom bar is ZC63A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
48
Elongation at Break, % 20
3.3
Fatigue Strength, MPa 190
94
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 40
19
Tensile Strength: Ultimate (UTS), MPa 340
220
Tensile Strength: Yield (Proof), MPa 280
130

Thermal Properties

Latent Heat of Fusion, J/g 420
330
Maximum Temperature: Mechanical, °C 320
98
Melting Completion (Liquidus), °C 1670
550
Melting Onset (Solidus), °C 1620
470
Specific Heat Capacity, J/kg-K 540
950
Thermal Conductivity, W/m-K 21
120
Thermal Expansion, µm/m-K 8.7
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
32
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
140

Otherwise Unclassified Properties

Density, g/cm3 4.5
2.1
Embodied Carbon, kg CO2/kg material 47
22
Embodied Energy, MJ/kg 800
150
Embodied Water, L/kg 470
920

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 64
6.3
Resilience: Unit (Modulus of Resilience), kJ/m3 360
190
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
58
Strength to Weight: Axial, points 21
29
Strength to Weight: Bending, points 24
38
Thermal Diffusivity, mm2/s 8.8
58
Thermal Shock Resistance, points 26
12

Alloy Composition

Carbon (C), % 0 to 0.030
0
Copper (Cu), % 0
2.4 to 3.0
Hydrogen (H), % 0 to 0.0080
0
Iron (Fe), % 0 to 0.12
0
Magnesium (Mg), % 0
89.2 to 91.9
Manganese (Mn), % 0
0.25 to 0.75
Nickel (Ni), % 0
0 to 0.010
Nitrogen (N), % 0 to 0.015
0
Oxygen (O), % 0.080 to 0.16
0
Palladium (Pd), % 0.12 to 0.25
0
Silicon (Si), % 0
0 to 0.2
Titanium (Ti), % 99.417 to 99.8
0
Zinc (Zn), % 0
5.5 to 6.5
Residuals, % 0
0 to 0.3