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S32304 Stainless Steel vs. Grade 38 Titanium

S32304 stainless steel belongs to the iron alloys classification, while grade 38 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 S32304 stainless steel and the bottom bar is grade 38 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 28
11
Fatigue Strength, MPa 330
530
Poisson's Ratio 0.27
0.32
Shear Modulus, GPa 79
40
Shear Strength, MPa 440
600
Tensile Strength: Ultimate (UTS), MPa 670
1000
Tensile Strength: Yield (Proof), MPa 460
910

Thermal Properties

Latent Heat of Fusion, J/g 290
410
Maximum Temperature: Mechanical, °C 1050
330
Melting Completion (Liquidus), °C 1420
1620
Melting Onset (Solidus), °C 1380
1570
Specific Heat Capacity, J/kg-K 480
550
Thermal Conductivity, W/m-K 15
8.0
Thermal Expansion, µm/m-K 13
9.3

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
1.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 14
36
Density, g/cm3 7.7
4.5
Embodied Carbon, kg CO2/kg material 2.8
35
Embodied Energy, MJ/kg 40
560
Embodied Water, L/kg 160
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
110
Resilience: Unit (Modulus of Resilience), kJ/m3 520
3840
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 24
62
Strength to Weight: Bending, points 22
49
Thermal Diffusivity, mm2/s 4.0
3.2
Thermal Shock Resistance, points 18
72

Alloy Composition

Aluminum (Al), % 0
3.5 to 4.5
Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 21.5 to 24.5
0
Copper (Cu), % 0.050 to 0.6
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 65 to 75.4
1.2 to 1.8
Manganese (Mn), % 0 to 2.5
0
Molybdenum (Mo), % 0.050 to 0.6
0
Nickel (Ni), % 3.0 to 5.5
0
Nitrogen (N), % 0.050 to 0.2
0 to 0.030
Oxygen (O), % 0
0.2 to 0.3
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
89.9 to 93.1
Vanadium (V), % 0
2.0 to 3.0
Residuals, % 0
0 to 0.4