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S31254 Stainless Steel vs. Grade 24 Titanium

S31254 stainless steel belongs to the iron alloys classification, while grade 24 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 S31254 stainless steel and the bottom bar is grade 24 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 40
11
Fatigue Strength, MPa 290
550
Poisson's Ratio 0.28
0.32
Reduction in Area, % 56
28
Shear Modulus, GPa 80
40
Shear Strength, MPa 490
610
Tensile Strength: Ultimate (UTS), MPa 720
1010
Tensile Strength: Yield (Proof), MPa 330
940

Thermal Properties

Latent Heat of Fusion, J/g 300
410
Maximum Temperature: Mechanical, °C 1090
340
Melting Completion (Liquidus), °C 1460
1610
Melting Onset (Solidus), °C 1420
1560
Specific Heat Capacity, J/kg-K 460
560
Thermal Conductivity, W/m-K 14
7.1
Thermal Expansion, µm/m-K 17
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
2.0

Otherwise Unclassified Properties

Density, g/cm3 8.0
4.5
Embodied Carbon, kg CO2/kg material 5.5
43
Embodied Energy, MJ/kg 74
710
Embodied Water, L/kg 190
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
110
Resilience: Unit (Modulus of Resilience), kJ/m3 270
4160
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 25
63
Strength to Weight: Bending, points 22
50
Thermal Diffusivity, mm2/s 3.8
2.9
Thermal Shock Resistance, points 15
72

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.8
Carbon (C), % 0 to 0.020
0 to 0.080
Chromium (Cr), % 19.5 to 20.5
0
Copper (Cu), % 0.5 to 1.0
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 51.4 to 56.3
0 to 0.4
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 6.0 to 6.5
0
Nickel (Ni), % 17.5 to 18.5
0
Nitrogen (N), % 0.18 to 0.22
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Palladium (Pd), % 0
0.040 to 0.080
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.8
0
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0
87.5 to 91
Vanadium (V), % 0
3.5 to 4.5
Residuals, % 0
0 to 0.4