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SAE-AISI S5 Steel vs. Titanium 6-7

SAE-AISI S5 steel belongs to the iron alloys classification, while titanium 6-7 belongs to the titanium alloys. There are 19 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI S5 steel and the bottom bar is titanium 6-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
120
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 72
45
Tensile Strength: Ultimate (UTS), MPa 680 to 1940
1020

Thermal Properties

Latent Heat of Fusion, J/g 280
410
Melting Completion (Liquidus), °C 1440
1700
Melting Onset (Solidus), °C 1400
1650
Specific Heat Capacity, J/kg-K 480
520
Thermal Expansion, µm/m-K 12
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 3.1
75
Density, g/cm3 7.7
5.1
Embodied Carbon, kg CO2/kg material 2.1
34
Embodied Energy, MJ/kg 29
540
Embodied Water, L/kg 51
190

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
32
Strength to Weight: Axial, points 25 to 70
56
Strength to Weight: Bending, points 22 to 45
44
Thermal Shock Resistance, points 23 to 65
66

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.5
Carbon (C), % 0.5 to 0.65
0 to 0.080
Chromium (Cr), % 0 to 0.5
0
Copper (Cu), % 0 to 0.25
0
Hydrogen (H), % 0
0 to 0.0090
Iron (Fe), % 93.6 to 97
0 to 0.25
Manganese (Mn), % 0.6 to 1.0
0
Molybdenum (Mo), % 0.2 to 1.4
6.5 to 7.5
Niobium (Nb), % 0
6.5 to 7.5
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 1.8 to 2.3
0
Sulfur (S), % 0 to 0.030
0
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 0
84.9 to 88
Vanadium (V), % 0 to 0.35
0