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ACI-ASTM CD3MWCuN Steel vs. Grade 28 Titanium

ACI-ASTM CD3MWCuN steel belongs to the iron alloys classification, while grade 28 titanium belongs to the titanium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CD3MWCuN steel and the bottom bar is grade 28 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 29
11 to 17
Fatigue Strength, MPa 370
330 to 480
Poisson's Ratio 0.27
0.32
Shear Modulus, GPa 80
40
Tensile Strength: Ultimate (UTS), MPa 790
690 to 980
Tensile Strength: Yield (Proof), MPa 500
540 to 810

Thermal Properties

Latent Heat of Fusion, J/g 300
410
Maximum Temperature: Mechanical, °C 1100
330
Melting Completion (Liquidus), °C 1460
1640
Melting Onset (Solidus), °C 1410
1590
Specific Heat Capacity, J/kg-K 470
550
Thermal Conductivity, W/m-K 16
8.3
Thermal Expansion, µm/m-K 13
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
1.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 22
36
Density, g/cm3 7.9
4.5
Embodied Carbon, kg CO2/kg material 4.2
37
Embodied Energy, MJ/kg 58
600
Embodied Water, L/kg 180
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
87 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 620
1370 to 3100
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 28
43 to 61
Strength to Weight: Bending, points 24
39 to 49
Thermal Diffusivity, mm2/s 4.2
3.4
Thermal Shock Resistance, points 22
47 to 66

Alloy Composition

Aluminum (Al), % 0
2.5 to 3.5
Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 24 to 26
0
Copper (Cu), % 0.5 to 1.0
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 56.6 to 65.3
0 to 0.25
Manganese (Mn), % 0 to 1.5
0
Molybdenum (Mo), % 3.0 to 4.0
0
Nickel (Ni), % 6.5 to 8.5
0
Nitrogen (N), % 0.2 to 0.3
0 to 0.030
Oxygen (O), % 0
0 to 0.15
Phosphorus (P), % 0 to 0.030
0
Ruthenium (Ru), % 0
0.080 to 0.14
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.025
0
Titanium (Ti), % 0
92.4 to 95.4
Tungsten (W), % 0.5 to 1.0
0
Vanadium (V), % 0
2.0 to 3.0
Residuals, % 0
0 to 0.4