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ASTM B817 Type I vs. ISO-WD32250 Magnesium

ASTM B817 type I belongs to the titanium alloys classification, while ISO-WD32250 magnesium belongs to the magnesium alloys. There are 29 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 ASTM B817 type I and the bottom bar is ISO-WD32250 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
45
Elongation at Break, % 4.0 to 13
4.5 to 8.6
Fatigue Strength, MPa 360 to 520
170 to 210
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 40
17
Tensile Strength: Ultimate (UTS), MPa 770 to 960
310 to 330
Tensile Strength: Yield (Proof), MPa 700 to 860
240 to 290

Thermal Properties

Latent Heat of Fusion, J/g 410
340
Maximum Temperature: Mechanical, °C 340
120
Melting Completion (Liquidus), °C 1600
600
Melting Onset (Solidus), °C 1550
550
Specific Heat Capacity, J/kg-K 560
980
Thermal Conductivity, W/m-K 7.1
130
Thermal Expansion, µm/m-K 9.6
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
25
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
130

Otherwise Unclassified Properties

Base Metal Price, % relative 36
13
Density, g/cm3 4.4
1.8
Embodied Carbon, kg CO2/kg material 38
24
Embodied Energy, MJ/kg 610
160
Embodied Water, L/kg 200
950

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 30 to 120
14 to 26
Resilience: Unit (Modulus of Resilience), kJ/m3 2310 to 3540
630 to 930
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
67
Strength to Weight: Axial, points 48 to 60
49 to 51
Strength to Weight: Bending, points 42 to 49
58 to 60
Thermal Diffusivity, mm2/s 2.9
72
Thermal Shock Resistance, points 54 to 68
19 to 20

Alloy Composition

Aluminum (Al), % 5.5 to 6.8
0
Carbon (C), % 0 to 0.1
0
Chlorine (Cl), % 0 to 0.2
0
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.4
0
Magnesium (Mg), % 0
94.9 to 97.1
Nitrogen (N), % 0 to 0.040
0
Oxygen (O), % 0 to 0.3
0
Silicon (Si), % 0 to 0.1
0
Sodium (Na), % 0 to 0.2
0
Titanium (Ti), % 87 to 91
0
Vanadium (V), % 3.5 to 4.5
0
Zinc (Zn), % 0
2.5 to 4.0
Zirconium (Zr), % 0
0.45 to 0.8
Residuals, % 0
0 to 0.3