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ACI-ASTM CC50 Steel vs. Grade Ti-Pd18 Titanium

ACI-ASTM CC50 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 (9, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CC50 steel and the bottom bar is grade Ti-Pd18 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
320
Elastic (Young's, Tensile) Modulus, GPa 200
110
Poisson's Ratio 0.27
0.32
Shear Modulus, GPa 80
40
Tensile Strength: Ultimate (UTS), MPa 430
710

Thermal Properties

Latent Heat of Fusion, J/g 300
410
Maximum Temperature: Mechanical, °C 1100
330
Melting Completion (Liquidus), °C 1420
1640
Melting Onset (Solidus), °C 1370
1590
Specific Heat Capacity, J/kg-K 490
550
Thermal Conductivity, W/m-K 17
8.2
Thermal Expansion, µm/m-K 11
9.1

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.7

Otherwise Unclassified Properties

Density, g/cm3 7.6
4.5
Embodied Carbon, kg CO2/kg material 2.7
41
Embodied Energy, MJ/kg 39
670
Embodied Water, L/kg 170
270

Common Calculations

Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 26
35
Strength to Weight: Axial, points 16
44
Strength to Weight: Bending, points 17
39
Thermal Diffusivity, mm2/s 4.5
3.3
Thermal Shock Resistance, points 14
52

Alloy Composition

Aluminum (Al), % 0
2.5 to 3.5
Carbon (C), % 0 to 0.5
0 to 0.1
Chromium (Cr), % 26 to 30
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 62.9 to 74
0 to 0.25
Manganese (Mn), % 0 to 1.0
0
Nickel (Ni), % 0 to 4.0
0 to 0.050
Oxygen (O), % 0
0 to 0.15
Palladium (Pd), % 0
0.040 to 0.080
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.5
0
Sulfur (S), % 0 to 0.040
0
Titanium (Ti), % 0
92.5 to 95.5
Vanadium (V), % 0
2.0 to 3.0
Residuals, % 0
0 to 0.4