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S32654 Stainless Steel vs. Grade 28 Titanium

S32654 stainless steel belongs to the iron alloys classification, while grade 28 titanium belongs to the titanium 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 S32654 stainless steel and the bottom bar is grade 28 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
110
Elongation at Break, % 45
11 to 17
Fatigue Strength, MPa 450
330 to 480
Poisson's Ratio 0.28
0.32
Reduction in Area, % 46
22
Shear Modulus, GPa 82
40
Shear Strength, MPa 590
420 to 590
Tensile Strength: Ultimate (UTS), MPa 850
690 to 980
Tensile Strength: Yield (Proof), MPa 490
540 to 810

Thermal Properties

Latent Heat of Fusion, J/g 310
410
Maximum Temperature: Mechanical, °C 1100
330
Melting Completion (Liquidus), °C 1450
1640
Melting Onset (Solidus), °C 1410
1590
Specific Heat Capacity, J/kg-K 460
550
Thermal Conductivity, W/m-K 11
8.3
Thermal Expansion, µm/m-K 15
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
1.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 34
36
Density, g/cm3 8.0
4.5
Embodied Carbon, kg CO2/kg material 6.4
37
Embodied Energy, MJ/kg 87
600
Embodied Water, L/kg 220
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 330
87 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 570
1370 to 3100
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 29
43 to 61
Strength to Weight: Bending, points 25
39 to 49
Thermal Diffusivity, mm2/s 2.9
3.4
Thermal Shock Resistance, points 19
47 to 66

Alloy Composition

Aluminum (Al), % 0
2.5 to 3.5
Carbon (C), % 0 to 0.020
0 to 0.080
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 0.25
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 0.030
Oxygen (O), % 0
0 to 0.15
Phosphorus (P), % 0 to 0.030
0
Ruthenium (Ru), % 0
0.080 to 0.14
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.0050
0
Titanium (Ti), % 0
92.4 to 95.4
Vanadium (V), % 0
2.0 to 3.0
Residuals, % 0
0 to 0.4