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Grade 6 Titanium vs. SAE-AISI 5160 Steel

Grade 6 titanium belongs to the titanium alloys classification, while SAE-AISI 5160 steel belongs to the iron 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 grade 6 titanium and the bottom bar is SAE-AISI 5160 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
190
Elongation at Break, % 11
12 to 18
Fatigue Strength, MPa 290
180 to 650
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 39
73
Shear Strength, MPa 530
390 to 700
Tensile Strength: Ultimate (UTS), MPa 890
660 to 1150
Tensile Strength: Yield (Proof), MPa 840
280 to 1010

Thermal Properties

Latent Heat of Fusion, J/g 410
250
Maximum Temperature: Mechanical, °C 310
420
Melting Completion (Liquidus), °C 1580
1450
Melting Onset (Solidus), °C 1530
1410
Specific Heat Capacity, J/kg-K 550
470
Thermal Conductivity, W/m-K 7.8
43
Thermal Expansion, µm/m-K 9.4
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.2
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 36
2.1
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 30
1.4
Embodied Energy, MJ/kg 480
19
Embodied Water, L/kg 190
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
73 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 3390
200 to 2700
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 55
23 to 41
Strength to Weight: Bending, points 46
22 to 31
Thermal Diffusivity, mm2/s 3.2
12
Thermal Shock Resistance, points 65
19 to 34

Alloy Composition

Aluminum (Al), % 4.0 to 6.0
0
Carbon (C), % 0 to 0.080
0.56 to 0.61
Chromium (Cr), % 0
0.7 to 0.9
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.5
97.1 to 97.8
Manganese (Mn), % 0
0.75 to 1.0
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.2
0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0
0.15 to 0.35
Sulfur (S), % 0
0 to 0.040
Tin (Sn), % 2.0 to 3.0
0
Titanium (Ti), % 89.8 to 94
0
Residuals, % 0 to 0.4
0