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QE22A Magnesium vs. ASTM B817 Type II

QE22A magnesium belongs to the magnesium alloys classification, while ASTM B817 type II belongs to the titanium alloys. There are 23 material properties with values for both materials. Properties with values for just one material (12, 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 QE22A magnesium and the bottom bar is ASTM B817 type II.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
100
Elongation at Break, % 2.4
3.0 to 13
Fatigue Strength, MPa 110
390 to 530
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 17
40
Tensile Strength: Ultimate (UTS), MPa 250
900 to 960
Tensile Strength: Yield (Proof), MPa 190
780 to 900

Thermal Properties

Latent Heat of Fusion, J/g 340
400
Maximum Temperature: Mechanical, °C 250
350
Melting Completion (Liquidus), °C 640
1580
Melting Onset (Solidus), °C 570
1530
Specific Heat Capacity, J/kg-K 970
550
Thermal Expansion, µm/m-K 27
9.9

Otherwise Unclassified Properties

Density, g/cm3 2.0
4.6
Embodied Carbon, kg CO2/kg material 27
40
Embodied Energy, MJ/kg 220
650

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5
26 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 400
2890 to 3890
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 60
34
Strength to Weight: Axial, points 36
55 to 58
Strength to Weight: Bending, points 46
45 to 47
Thermal Shock Resistance, points 15
62 to 66

Alloy Composition


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Aluminum (Al), % 0
5.0 to 6.0
Carbon (C), % 0
0 to 0.1
Chlorine (Cl), % 0
0 to 0.2
Copper (Cu), % 0 to 0.1
0.35 to 1.0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0
0.35 to 1.0
Magnesium (Mg), % 93.1 to 95.8
0
Nickel (Ni), % 0 to 0.010
0
Nitrogen (N), % 0
0 to 0.040
Oxygen (O), % 0
0 to 0.3
Silicon (Si), % 0
0 to 0.1
Silver (Ag), % 2.0 to 3.0
0
Sodium (Na), % 0
0 to 0.2
Tin (Sn), % 0
1.5 to 2.5
Titanium (Ti), % 0
82.1 to 87.8
Unspecified Rare Earths, % 1.8 to 2.5
0
Vanadium (V), % 0
5.0 to 6.0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.3
0 to 0.4