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Grade Ti-Pd17 Titanium vs. S40975 Stainless Steel

Grade Ti-Pd17 titanium belongs to the titanium alloys classification, while S40975 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is grade Ti-Pd17 titanium and the bottom bar is S40975 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
170
Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 22
22
Fatigue Strength, MPa 140
210
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 40
75
Tensile Strength: Ultimate (UTS), MPa 270
460
Tensile Strength: Yield (Proof), MPa 190
310

Thermal Properties

Latent Heat of Fusion, J/g 420
270
Maximum Temperature: Mechanical, °C 320
710
Melting Completion (Liquidus), °C 1660
1450
Melting Onset (Solidus), °C 1610
1400
Specific Heat Capacity, J/kg-K 540
480
Thermal Conductivity, W/m-K 21
26
Thermal Expansion, µm/m-K 8.7
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
3.3

Otherwise Unclassified Properties

Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 36
2.0
Embodied Energy, MJ/kg 600
28
Embodied Water, L/kg 230
95

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 55
93
Resilience: Unit (Modulus of Resilience), kJ/m3 180
250
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 17
17
Strength to Weight: Bending, points 21
17
Thermal Diffusivity, mm2/s 8.8
7.0
Thermal Shock Resistance, points 21
17

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.030
Chromium (Cr), % 0
10.5 to 11.7
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
84.4 to 89
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0 to 0.030
0.5 to 1.0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0 to 0.25
0
Palladium (Pd), % 0.040 to 0.080
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 98.9 to 99.96
0 to 0.75
Residuals, % 0 to 0.4
0