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AWS ERTi-7 vs. EN-MC21210 Magnesium

AWS ERTi-7 belongs to the titanium alloys classification, while EN-MC21210 magnesium belongs to the magnesium alloys. There are 28 material properties with values for both materials. Properties with values for just one material (3, 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 EN-MC21210 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
44
Elongation at Break, % 20
14
Fatigue Strength, MPa 190
70
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 40
17
Tensile Strength: Ultimate (UTS), MPa 340
190
Tensile Strength: Yield (Proof), MPa 280
90

Thermal Properties

Latent Heat of Fusion, J/g 420
350
Maximum Temperature: Mechanical, °C 320
100
Melting Completion (Liquidus), °C 1670
600
Melting Onset (Solidus), °C 1620
570
Specific Heat Capacity, J/kg-K 540
1000
Thermal Conductivity, W/m-K 21
120
Thermal Expansion, µm/m-K 8.7
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
24
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
130

Otherwise Unclassified Properties

Density, g/cm3 4.5
1.6
Embodied Carbon, kg CO2/kg material 47
24
Embodied Energy, MJ/kg 800
160
Embodied Water, L/kg 470
980

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 64
22
Resilience: Unit (Modulus of Resilience), kJ/m3 360
92
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 35
72
Strength to Weight: Axial, points 21
32
Strength to Weight: Bending, points 24
44
Thermal Diffusivity, mm2/s 8.8
76
Thermal Shock Resistance, points 26
11

Alloy Composition

Aluminum (Al), % 0
1.6 to 2.6
Carbon (C), % 0 to 0.030
0
Copper (Cu), % 0
0 to 0.010
Hydrogen (H), % 0 to 0.0080
0
Iron (Fe), % 0 to 0.12
0 to 0.0050
Magnesium (Mg), % 0
96.3 to 98.3
Manganese (Mn), % 0
0.1 to 0.7
Nickel (Ni), % 0
0 to 0.0020
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 0.1
Titanium (Ti), % 99.417 to 99.8
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.010