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S32654 Stainless Steel vs. R56406 Titanium

S32654 stainless steel belongs to the iron alloys classification, while R56406 titanium belongs to the titanium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is S32654 stainless steel and the bottom bar is R56406 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
110
Elongation at Break, % 45
9.1
Fatigue Strength, MPa 450
480
Poisson's Ratio 0.28
0.32
Reduction in Area, % 46
16
Shear Modulus, GPa 82
40
Tensile Strength: Ultimate (UTS), MPa 850
980
Tensile Strength: Yield (Proof), MPa 490
850

Thermal Properties

Latent Heat of Fusion, J/g 310
410
Maximum Temperature: Mechanical, °C 1100
340
Melting Completion (Liquidus), °C 1450
1610
Melting Onset (Solidus), °C 1410
1560
Specific Heat Capacity, J/kg-K 460
560
Thermal Conductivity, W/m-K 11
7.1
Thermal Expansion, µm/m-K 15
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 34
36
Density, g/cm3 8.0
4.5
Embodied Carbon, kg CO2/kg material 6.4
38
Embodied Energy, MJ/kg 87
610
Embodied Water, L/kg 220
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 330
85
Resilience: Unit (Modulus of Resilience), kJ/m3 570
3420
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 29
61
Strength to Weight: Bending, points 25
49
Thermal Diffusivity, mm2/s 2.9
2.8
Thermal Shock Resistance, points 19
69

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.8
Carbon (C), % 0 to 0.020
0 to 0.1
Chromium (Cr), % 24 to 25
0
Copper (Cu), % 0.3 to 0.6
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 38.3 to 45.3
0 to 0.3
Manganese (Mn), % 2.0 to 4.0
0
Molybdenum (Mo), % 7.0 to 8.0
0
Nickel (Ni), % 21 to 23
0
Nitrogen (N), % 0.45 to 0.55
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.0050
0
Titanium (Ti), % 0
88.1 to 91
Vanadium (V), % 0
3.5 to 4.5