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ASTM B817 Type I vs. AZ92A Magnesium

ASTM B817 type I belongs to the titanium alloys classification, while AZ92A magnesium belongs to the magnesium alloys. There are 29 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 ASTM B817 type I and the bottom bar is AZ92A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
47
Elongation at Break, % 4.0 to 13
2.1 to 6.8
Fatigue Strength, MPa 360 to 520
76 to 90
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 40
18
Tensile Strength: Ultimate (UTS), MPa 770 to 960
170 to 270
Tensile Strength: Yield (Proof), MPa 700 to 860
83 to 140

Thermal Properties

Latent Heat of Fusion, J/g 410
350
Maximum Temperature: Mechanical, °C 340
130
Melting Completion (Liquidus), °C 1600
590
Melting Onset (Solidus), °C 1550
440
Specific Heat Capacity, J/kg-K 560
980
Thermal Conductivity, W/m-K 7.1
44 to 58
Thermal Expansion, µm/m-K 9.6
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
11 to 12
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
53 to 62

Otherwise Unclassified Properties

Base Metal Price, % relative 36
12
Density, g/cm3 4.4
1.8
Embodied Carbon, kg CO2/kg material 38
22
Embodied Energy, MJ/kg 610
160
Embodied Water, L/kg 200
980

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 30 to 120
4.0 to 14
Resilience: Unit (Modulus of Resilience), kJ/m3 2310 to 3540
73 to 220
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
67
Strength to Weight: Axial, points 48 to 60
26 to 41
Strength to Weight: Bending, points 42 to 49
38 to 51
Thermal Diffusivity, mm2/s 2.9
25 to 33
Thermal Shock Resistance, points 54 to 68
10 to 16

Alloy Composition

Aluminum (Al), % 5.5 to 6.8
8.3 to 9.7
Carbon (C), % 0 to 0.1
0
Chlorine (Cl), % 0 to 0.2
0
Copper (Cu), % 0
0 to 0.25
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.4
0
Magnesium (Mg), % 0
86.7 to 90
Manganese (Mn), % 0
0.1 to 0.35
Nickel (Ni), % 0
0 to 0.010
Nitrogen (N), % 0 to 0.040
0
Oxygen (O), % 0 to 0.3
0
Silicon (Si), % 0 to 0.1
0 to 0.3
Sodium (Na), % 0 to 0.2
0
Titanium (Ti), % 87 to 91
0
Vanadium (V), % 3.5 to 4.5
0
Zinc (Zn), % 0
1.6 to 2.4
Residuals, % 0
0 to 0.3