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Grade Ti-Pd8A Titanium vs. AISI 309Cb Stainless Steel

Grade Ti-Pd8A titanium belongs to the titanium alloys classification, while AISI 309Cb stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is grade Ti-Pd8A titanium and the bottom bar is AISI 309Cb stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
190
Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 13
39
Fatigue Strength, MPa 260
200
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 40
78
Tensile Strength: Ultimate (UTS), MPa 500
580
Tensile Strength: Yield (Proof), MPa 430
230

Thermal Properties

Latent Heat of Fusion, J/g 420
300
Maximum Temperature: Mechanical, °C 320
1090
Melting Completion (Liquidus), °C 1660
1420
Melting Onset (Solidus), °C 1610
1380
Specific Heat Capacity, J/kg-K 540
480
Thermal Conductivity, W/m-K 21
15
Thermal Expansion, µm/m-K 8.7
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.5
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 6.9
2.5

Otherwise Unclassified Properties

Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 49
4.1
Embodied Energy, MJ/kg 840
59
Embodied Water, L/kg 520
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 65
180
Resilience: Unit (Modulus of Resilience), kJ/m3 880
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 31
20
Strength to Weight: Bending, points 31
20
Thermal Diffusivity, mm2/s 8.6
4.0
Thermal Shock Resistance, points 39
13

Alloy Composition


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Carbon (C), % 0 to 0.1
0 to 0.080
Chromium (Cr), % 0
22 to 24
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
56 to 66
Manganese (Mn), % 0
0 to 2.0
Nickel (Ni), % 0 to 0.050
12 to 16
Niobium (Nb), % 0
0 to 1.1
Oxygen (O), % 0 to 0.4
0
Palladium (Pd), % 0.12 to 0.3
0
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 98.8 to 99.9
0
Residuals, % 0 to 0.4
0