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Grade Ti-Pd17 Titanium vs. EN 1.6781 Steel

Grade Ti-Pd17 titanium belongs to the titanium alloys classification, while EN 1.6781 steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is grade Ti-Pd17 titanium and the bottom bar is EN 1.6781 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
250
Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 22
17
Fatigue Strength, MPa 140
450
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 40
73
Tensile Strength: Ultimate (UTS), MPa 270
830
Tensile Strength: Yield (Proof), MPa 190
680

Thermal Properties

Latent Heat of Fusion, J/g 420
260
Maximum Temperature: Mechanical, °C 320
450
Melting Completion (Liquidus), °C 1660
1460
Melting Onset (Solidus), °C 1610
1420
Specific Heat Capacity, J/kg-K 540
470
Thermal Conductivity, W/m-K 21
44
Thermal Expansion, µm/m-K 8.7
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
7.9
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
9.1

Otherwise Unclassified Properties

Density, g/cm3 4.5
7.9
Embodied Carbon, kg CO2/kg material 36
1.9
Embodied Energy, MJ/kg 600
25
Embodied Water, L/kg 230
60

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 55
130
Resilience: Unit (Modulus of Resilience), kJ/m3 180
1220
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 17
29
Strength to Weight: Bending, points 21
25
Thermal Diffusivity, mm2/s 8.8
12
Thermal Shock Resistance, points 21
24

Alloy Composition

Carbon (C), % 0 to 0.1
0.15 to 0.19
Chromium (Cr), % 0
1.3 to 1.8
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
92.6 to 94.6
Manganese (Mn), % 0
0.55 to 0.8
Molybdenum (Mo), % 0
0.45 to 0.6
Nickel (Ni), % 0 to 0.030
3.0 to 3.5
Oxygen (O), % 0 to 0.25
0
Palladium (Pd), % 0.040 to 0.080
0
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 98.9 to 99.96
0
Residuals, % 0 to 0.4
0