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ACI-ASTM CB7Cu-2 Steel vs. Grade C-5 Titanium

ACI-ASTM CB7Cu-2 steel belongs to the iron alloys classification, while grade C-5 titanium belongs to the titanium 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 ACI-ASTM CB7Cu-2 steel and the bottom bar is grade C-5 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 300 to 420
310
Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 5.7 to 11
6.7
Fatigue Strength, MPa 420 to 590
510
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 75
40
Tensile Strength: Ultimate (UTS), MPa 960 to 1350
1000
Tensile Strength: Yield (Proof), MPa 760 to 1180
940

Thermal Properties

Latent Heat of Fusion, J/g 280
410
Melting Completion (Liquidus), °C 1430
1610
Melting Onset (Solidus), °C 1380
1560
Specific Heat Capacity, J/kg-K 480
560
Thermal Conductivity, W/m-K 17
7.1
Thermal Expansion, µm/m-K 11
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 13
36
Density, g/cm3 7.8
4.4
Embodied Carbon, kg CO2/kg material 2.6
38
Embodied Energy, MJ/kg 38
610
Embodied Water, L/kg 130
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 120
66
Resilience: Unit (Modulus of Resilience), kJ/m3 1510 to 3600
4200
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 34 to 48
63
Strength to Weight: Bending, points 28 to 35
50
Thermal Diffusivity, mm2/s 4.6
2.9
Thermal Shock Resistance, points 32 to 45
71

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.8
Carbon (C), % 0 to 0.070
0 to 0.1
Chromium (Cr), % 14 to 15.5
0
Copper (Cu), % 2.5 to 3.2
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 73.6 to 79
0 to 0.4
Manganese (Mn), % 0 to 0.7
0
Nickel (Ni), % 4.5 to 5.5
0 to 0.050
Niobium (Nb), % 0 to 0.35
0
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
87.5 to 91
Vanadium (V), % 0
3.5 to 4.5
Residuals, % 0
0 to 0.4