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S40920 Stainless Steel vs. Grade 32 Titanium

S40920 stainless steel belongs to the iron alloys classification, while grade 32 titanium belongs to the titanium 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 S40920 stainless steel and the bottom bar is grade 32 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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