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S34565 Stainless Steel vs. Grade 17 Titanium

S34565 stainless steel belongs to the iron alloys classification, while grade 17 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 S34565 stainless steel and the bottom bar is grade 17 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
110
Elongation at Break, % 39
27
Fatigue Strength, MPa 400
160
Poisson's Ratio 0.28
0.32
Reduction in Area, % 45
34
Shear Modulus, GPa 80
38
Shear Strength, MPa 610
180
Tensile Strength: Ultimate (UTS), MPa 900
270
Tensile Strength: Yield (Proof), MPa 470
210

Thermal Properties

Latent Heat of Fusion, J/g 310
420
Maximum Temperature: Mechanical, °C 1100
320
Melting Completion (Liquidus), °C 1420
1660
Melting Onset (Solidus), °C 1380
1610
Specific Heat Capacity, J/kg-K 470
540
Thermal Conductivity, W/m-K 12
23
Thermal Expansion, µm/m-K 15
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
3.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
7.3

Otherwise Unclassified Properties

Density, g/cm3 7.9
4.5
Embodied Carbon, kg CO2/kg material 5.3
36
Embodied Energy, MJ/kg 73
600
Embodied Water, L/kg 210
230

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 300
68
Resilience: Unit (Modulus of Resilience), kJ/m3 540
220
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 32
17
Strength to Weight: Bending, points 26
21
Thermal Diffusivity, mm2/s 3.2
9.3
Thermal Shock Resistance, points 22
21

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 23 to 25
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 43.2 to 51.6
0 to 0.2
Manganese (Mn), % 5.0 to 7.0
0
Molybdenum (Mo), % 4.0 to 5.0
0
Nickel (Ni), % 16 to 18
0
Niobium (Nb), % 0 to 0.1
0
Nitrogen (N), % 0.4 to 0.6
0 to 0.030
Oxygen (O), % 0
0 to 0.18
Palladium (Pd), % 0
0.040 to 0.080
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0
99.015 to 99.96
Residuals, % 0
0 to 0.4