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EN 1.8151 Steel vs. Grade Ti-Pd18 Titanium

EN 1.8151 steel belongs to the iron alloys classification, while grade Ti-Pd18 titanium belongs to the titanium alloys. There are 24 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 EN 1.8151 steel and the bottom bar is grade Ti-Pd18 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 540
320
Elastic (Young's, Tensile) Modulus, GPa 190
110
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 72
40
Tensile Strength: Ultimate (UTS), MPa 670 to 1940
710

Thermal Properties

Latent Heat of Fusion, J/g 270
410
Maximum Temperature: Mechanical, °C 410
330
Melting Completion (Liquidus), °C 1440
1640
Melting Onset (Solidus), °C 1400
1590
Specific Heat Capacity, J/kg-K 480
550
Thermal Conductivity, W/m-K 50
8.2
Thermal Expansion, µm/m-K 13
9.1

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
2.7

Otherwise Unclassified Properties

Density, g/cm3 7.7
4.5
Embodied Carbon, kg CO2/kg material 1.8
41
Embodied Energy, MJ/kg 25
670
Embodied Water, L/kg 49
270

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 24 to 70
44
Strength to Weight: Bending, points 22 to 45
39
Thermal Diffusivity, mm2/s 14
3.3
Thermal Shock Resistance, points 20 to 58
52

Alloy Composition


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Aluminum (Al), % 0
2.5 to 3.5
Carbon (C), % 0.4 to 0.5
0 to 0.1
Chromium (Cr), % 0.4 to 0.8
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 95.9 to 97.2
0 to 0.25
Manganese (Mn), % 0.6 to 0.9
0
Nickel (Ni), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.15
Palladium (Pd), % 0
0.040 to 0.080
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 1.3 to 1.7
0
Sulfur (S), % 0 to 0.025
0
Titanium (Ti), % 0
92.5 to 95.5
Vanadium (V), % 0.1 to 0.2
2.0 to 3.0
Residuals, % 0
0 to 0.4