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SAE-AISI S5 Steel vs. Grade 37 Titanium

SAE-AISI S5 steel belongs to the iron alloys classification, while grade 37 titanium belongs to the titanium alloys. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI S5 steel and the bottom bar is grade 37 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 72
40
Tensile Strength: Ultimate (UTS), MPa 680 to 1940
390

Thermal Properties

Latent Heat of Fusion, J/g 280
420
Melting Completion (Liquidus), °C 1440
1650
Melting Onset (Solidus), °C 1400
1600
Specific Heat Capacity, J/kg-K 480
550
Thermal Conductivity, W/m-K 42
21
Thermal Expansion, µm/m-K 12
8.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
6.8

Otherwise Unclassified Properties

Base Metal Price, % relative 3.1
36
Density, g/cm3 7.7
4.5
Embodied Carbon, kg CO2/kg material 2.1
31
Embodied Energy, MJ/kg 29
500
Embodied Water, L/kg 51
120

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 25 to 70
24
Strength to Weight: Bending, points 22 to 45
26
Thermal Diffusivity, mm2/s 11
8.4
Thermal Shock Resistance, points 23 to 65
29

Alloy Composition

Aluminum (Al), % 0
1.0 to 2.0
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 0.015
Iron (Fe), % 93.6 to 97
0 to 0.3
Manganese (Mn), % 0.6 to 1.0
0
Molybdenum (Mo), % 0.2 to 1.4
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 1.8 to 2.3
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
96.9 to 99
Vanadium (V), % 0 to 0.35
0
Residuals, % 0
0 to 0.4