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AS41B Magnesium vs. AWS ERTi-1

AS41B magnesium belongs to the magnesium alloys classification, while AWS ERTi-1 belongs to the titanium 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 AS41B magnesium and the bottom bar is AWS ERTi-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 6.0
24
Fatigue Strength, MPa 97
120
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 18
41
Tensile Strength: Ultimate (UTS), MPa 210
240
Tensile Strength: Yield (Proof), MPa 140
170

Thermal Properties

Latent Heat of Fusion, J/g 370
420
Maximum Temperature: Mechanical, °C 110
320
Melting Completion (Liquidus), °C 620
1670
Melting Onset (Solidus), °C 570
1620
Specific Heat Capacity, J/kg-K 1000
540
Thermal Conductivity, W/m-K 68
21
Thermal Expansion, µm/m-K 26
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 92
7.1

Otherwise Unclassified Properties

Base Metal Price, % relative 12
37
Density, g/cm3 1.7
4.5
Embodied Carbon, kg CO2/kg material 23
31
Embodied Energy, MJ/kg 160
510
Embodied Water, L/kg 980
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
52
Resilience: Unit (Modulus of Resilience), kJ/m3 220
140
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 72
35
Strength to Weight: Axial, points 35
15
Strength to Weight: Bending, points 47
19
Thermal Diffusivity, mm2/s 41
8.7
Thermal Shock Resistance, points 13
19

Alloy Composition

Aluminum (Al), % 3.5 to 5.0
0
Carbon (C), % 0
0 to 0.030
Copper (Cu), % 0 to 0.020
0
Hydrogen (H), % 0
0 to 0.0050
Iron (Fe), % 0 to 0.0035
0 to 0.080
Magnesium (Mg), % 92.7 to 95.7
0
Manganese (Mn), % 0.35 to 0.7
0
Nickel (Ni), % 0 to 0.0020
0
Nitrogen (N), % 0
0 to 0.012
Oxygen (O), % 0
0.030 to 0.1
Silicon (Si), % 0.5 to 1.5
0
Titanium (Ti), % 0
99.773 to 99.97
Zinc (Zn), % 0 to 0.12
0