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AWS ERTi-5 vs. ISO-WD21150 Magnesium

AWS ERTi-5 belongs to the titanium alloys classification, while ISO-WD21150 magnesium belongs to the magnesium alloys. There are 28 material properties with values for both materials. Properties with values for just one material (2, 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-5 and the bottom bar is ISO-WD21150 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
45
Elongation at Break, % 10
5.7 to 11
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 40
17
Tensile Strength: Ultimate (UTS), MPa 900
240 to 290
Tensile Strength: Yield (Proof), MPa 830
120 to 200

Thermal Properties

Latent Heat of Fusion, J/g 410
350
Maximum Temperature: Mechanical, °C 340
110
Melting Completion (Liquidus), °C 1610
600
Melting Onset (Solidus), °C 1560
550
Specific Heat Capacity, J/kg-K 560
990
Thermal Conductivity, W/m-K 7.1
100
Thermal Expansion, µm/m-K 9.6
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
19
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
100

Otherwise Unclassified Properties

Base Metal Price, % relative 36
12
Density, g/cm3 4.4
1.7
Embodied Carbon, kg CO2/kg material 38
23
Embodied Energy, MJ/kg 610
160
Embodied Water, L/kg 200
980

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 87
15 to 24
Resilience: Unit (Modulus of Resilience), kJ/m3 3250
160 to 460
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 35
70
Strength to Weight: Axial, points 56
40 to 48
Strength to Weight: Bending, points 46
52 to 58
Thermal Diffusivity, mm2/s 2.9
60
Thermal Shock Resistance, points 63
15 to 17

Alloy Composition

Aluminum (Al), % 5.5 to 6.8
2.4 to 3.6
Carbon (C), % 0 to 0.050
0
Copper (Cu), % 0
0 to 0.050
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.22
0 to 0.0050
Magnesium (Mg), % 0
94 to 97
Manganese (Mn), % 0
0.15 to 0.4
Nickel (Ni), % 0
0 to 0.0050
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0.12 to 0.2
0
Silicon (Si), % 0
0 to 0.1
Titanium (Ti), % 88.2 to 90.9
0
Vanadium (V), % 3.5 to 4.5
0
Zinc (Zn), % 0
0.5 to 1.5
Residuals, % 0
0 to 0.3