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Grade 37 Titanium vs. S32654 Stainless Steel

Grade 37 titanium belongs to the titanium alloys classification, while S32654 stainless steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is grade 37 titanium and the bottom bar is S32654 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
210
Elongation at Break, % 22
45
Fatigue Strength, MPa 170
450
Poisson's Ratio 0.32
0.28
Reduction in Area, % 34
46
Shear Modulus, GPa 40
82
Shear Strength, MPa 240
590
Tensile Strength: Ultimate (UTS), MPa 390
850
Tensile Strength: Yield (Proof), MPa 250
490

Thermal Properties

Latent Heat of Fusion, J/g 420
310
Maximum Temperature: Mechanical, °C 310
1100
Melting Completion (Liquidus), °C 1650
1450
Melting Onset (Solidus), °C 1600
1410
Specific Heat Capacity, J/kg-K 550
460
Thermal Conductivity, W/m-K 21
11
Thermal Expansion, µm/m-K 8.9
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.4
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 6.8
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 36
34
Density, g/cm3 4.5
8.0
Embodied Carbon, kg CO2/kg material 31
6.4
Embodied Energy, MJ/kg 500
87
Embodied Water, L/kg 120
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 76
330
Resilience: Unit (Modulus of Resilience), kJ/m3 280
570
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 24
29
Strength to Weight: Bending, points 26
25
Thermal Diffusivity, mm2/s 8.4
2.9
Thermal Shock Resistance, points 29
19

Alloy Composition

Aluminum (Al), % 1.0 to 2.0
0
Carbon (C), % 0 to 0.080
0 to 0.020
Chromium (Cr), % 0
24 to 25
Copper (Cu), % 0
0.3 to 0.6
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
38.3 to 45.3
Manganese (Mn), % 0
2.0 to 4.0
Molybdenum (Mo), % 0
7.0 to 8.0
Nickel (Ni), % 0
21 to 23
Nitrogen (N), % 0 to 0.030
0.45 to 0.55
Oxygen (O), % 0 to 0.25
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0
0 to 0.0050
Titanium (Ti), % 96.9 to 99
0
Residuals, % 0 to 0.4
0