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Grade 32 Titanium vs. S40920 Stainless Steel

Grade 32 titanium belongs to the titanium alloys classification, while S40920 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is grade 32 titanium and the bottom bar is S40920 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 11
22
Fatigue Strength, MPa 390
130
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 40
75
Shear Strength, MPa 460
270
Tensile Strength: Ultimate (UTS), MPa 770
430
Tensile Strength: Yield (Proof), MPa 670
190

Thermal Properties

Latent Heat of Fusion, J/g 410
270
Maximum Temperature: Mechanical, °C 310
710
Melting Completion (Liquidus), °C 1610
1450
Melting Onset (Solidus), °C 1560
1400
Specific Heat Capacity, J/kg-K 550
480
Thermal Conductivity, W/m-K 7.5
26
Thermal Expansion, µm/m-K 8.2
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 38
6.5
Density, g/cm3 4.5
7.7
Embodied Carbon, kg CO2/kg material 32
2.0
Embodied Energy, MJ/kg 530
28
Embodied Water, L/kg 180
94

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
78
Resilience: Unit (Modulus of Resilience), kJ/m3 2100
97
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 47
15
Strength to Weight: Bending, points 41
16
Thermal Diffusivity, mm2/s 3.0
6.9
Thermal Shock Resistance, points 63
15

Alloy Composition

Aluminum (Al), % 4.5 to 5.5
0
Carbon (C), % 0 to 0.080
0 to 0.030
Chromium (Cr), % 0
10.5 to 11.7
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
85.1 to 89.4
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0.6 to 1.2
0
Nickel (Ni), % 0
0 to 0.5
Niobium (Nb), % 0
0 to 0.1
Nitrogen (N), % 0 to 0.030
0 to 0.030
Oxygen (O), % 0 to 0.11
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0.060 to 0.14
0 to 1.0
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 0.6 to 1.4
0
Titanium (Ti), % 88.1 to 93
0.15 to 0.5
Vanadium (V), % 0.6 to 1.4
0
Zirconium (Zr), % 0.6 to 1.4
0
Residuals, % 0 to 0.4
0