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3105 Aluminum vs. ASTM B817 Type II

3105 aluminum belongs to the aluminum alloys classification, while ASTM B817 type II belongs to the titanium alloys. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is 3105 aluminum and the bottom bar is ASTM B817 type II.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
100
Elongation at Break, % 1.1 to 20
3.0 to 13
Fatigue Strength, MPa 39 to 95
390 to 530
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
40
Tensile Strength: Ultimate (UTS), MPa 120 to 240
900 to 960
Tensile Strength: Yield (Proof), MPa 46 to 220
780 to 900

Thermal Properties

Latent Heat of Fusion, J/g 400
400
Maximum Temperature: Mechanical, °C 180
350
Melting Completion (Liquidus), °C 660
1580
Melting Onset (Solidus), °C 640
1530
Specific Heat Capacity, J/kg-K 900
550
Thermal Expansion, µm/m-K 24
9.9

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
37
Density, g/cm3 2.8
4.6
Embodied Carbon, kg CO2/kg material 8.2
40
Embodied Energy, MJ/kg 150
650
Embodied Water, L/kg 1180
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.6 to 19
26 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 15 to 340
2890 to 3890
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
34
Strength to Weight: Axial, points 12 to 24
55 to 58
Strength to Weight: Bending, points 20 to 31
45 to 47
Thermal Shock Resistance, points 5.2 to 11
62 to 66

Alloy Composition

Aluminum (Al), % 96 to 99.5
5.0 to 6.0
Carbon (C), % 0
0 to 0.1
Chlorine (Cl), % 0
0 to 0.2
Chromium (Cr), % 0 to 0.2
0
Copper (Cu), % 0 to 0.3
0.35 to 1.0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.7
0.35 to 1.0
Magnesium (Mg), % 0.2 to 0.8
0
Manganese (Mn), % 0.3 to 0.8
0
Nitrogen (N), % 0
0 to 0.040
Oxygen (O), % 0
0 to 0.3
Silicon (Si), % 0 to 0.6
0 to 0.1
Sodium (Na), % 0
0 to 0.2
Tin (Sn), % 0
1.5 to 2.5
Titanium (Ti), % 0 to 0.1
82.1 to 87.8
Vanadium (V), % 0
5.0 to 6.0
Zinc (Zn), % 0 to 0.4
0
Residuals, % 0
0 to 0.4