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Grade 23 Titanium vs. S41050 Stainless Steel

Grade 23 titanium belongs to the titanium alloys classification, while S41050 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is grade 23 titanium and the bottom bar is S41050 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 6.7 to 11
25
Fatigue Strength, MPa 470 to 500
160
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 40
76
Shear Strength, MPa 540 to 570
300
Tensile Strength: Ultimate (UTS), MPa 930 to 940
470
Tensile Strength: Yield (Proof), MPa 850 to 870
230

Thermal Properties

Latent Heat of Fusion, J/g 410
270
Maximum Temperature: Mechanical, °C 340
720
Melting Completion (Liquidus), °C 1610
1440
Melting Onset (Solidus), °C 1560
1400
Specific Heat Capacity, J/kg-K 560
480
Thermal Conductivity, W/m-K 7.1
27
Thermal Expansion, µm/m-K 9.4
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 36
7.0
Density, g/cm3 4.4
7.8
Embodied Carbon, kg CO2/kg material 38
1.9
Embodied Energy, MJ/kg 610
27
Embodied Water, L/kg 200
97

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 61 to 100
98
Resilience: Unit (Modulus of Resilience), kJ/m3 3430 to 3560
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 58 to 59
17
Strength to Weight: Bending, points 48
17
Thermal Diffusivity, mm2/s 2.9
7.2
Thermal Shock Resistance, points 67 to 68
17

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0 to 0.080
0 to 0.040
Chromium (Cr), % 0
10.5 to 12.5
Hydrogen (H), % 0 to 0.013
0
Iron (Fe), % 0 to 0.25
84.2 to 88.9
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0
0.6 to 1.1
Nitrogen (N), % 0 to 0.030
0 to 0.1
Oxygen (O), % 0 to 0.13
0
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 88.1 to 91
0
Vanadium (V), % 3.5 to 4.5
0
Residuals, % 0 to 0.4
0