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Annealed SAE-AISI 1345 vs. Annealed Titanium 6-6-2

Annealed SAE-AISI 1345 belongs to the iron alloys classification, while annealed titanium 6-6-2 belongs to the titanium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is annealed SAE-AISI 1345 and the bottom bar is annealed titanium 6-6-2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
120
Elongation at Break, % 23
9.0
Fatigue Strength, MPa 230
590
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 72
44
Shear Strength, MPa 370
670
Tensile Strength: Ultimate (UTS), MPa 590
1140
Tensile Strength: Yield (Proof), MPa 330
1040

Thermal Properties

Latent Heat of Fusion, J/g 250
400
Maximum Temperature: Mechanical, °C 400
310
Melting Completion (Liquidus), °C 1450
1610
Melting Onset (Solidus), °C 1410
1560
Specific Heat Capacity, J/kg-K 470
540
Thermal Conductivity, W/m-K 51
5.5
Thermal Expansion, µm/m-K 12
9.4

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
1.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
40
Density, g/cm3 7.8
4.8
Embodied Carbon, kg CO2/kg material 1.4
29
Embodied Energy, MJ/kg 19
470
Embodied Water, L/kg 48
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
99
Resilience: Unit (Modulus of Resilience), kJ/m3 290
4710
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
34
Strength to Weight: Axial, points 21
66
Strength to Weight: Bending, points 20
50
Thermal Diffusivity, mm2/s 14
2.1
Thermal Shock Resistance, points 19
75

Alloy Composition

Aluminum (Al), % 0
5.0 to 6.0
Carbon (C), % 0.43 to 0.48
0 to 0.050
Copper (Cu), % 0
0.35 to 1.0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 97.2 to 97.8
0.35 to 1.0
Manganese (Mn), % 1.6 to 1.9
0
Molybdenum (Mo), % 0
5.0 to 6.0
Nitrogen (N), % 0
0 to 0.040
Oxygen (O), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0.15 to 0.35
0
Sulfur (S), % 0 to 0.040
0
Tin (Sn), % 0
1.5 to 2.5
Titanium (Ti), % 0
82.8 to 87.8
Residuals, % 0
0 to 0.4