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ACI-ASTM CB7Cu-2 Steel vs. Titanium 6-7

ACI-ASTM CB7Cu-2 steel belongs to the iron alloys classification, while titanium 6-7 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 CB7Cu-2 steel and the bottom bar is titanium 6-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
120
Elongation at Break, % 5.7 to 11
11
Fatigue Strength, MPa 420 to 590
530
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 75
45
Tensile Strength: Ultimate (UTS), MPa 960 to 1350
1020
Tensile Strength: Yield (Proof), MPa 760 to 1180
900

Thermal Properties

Latent Heat of Fusion, J/g 280
410
Melting Completion (Liquidus), °C 1430
1700
Melting Onset (Solidus), °C 1380
1650
Specific Heat Capacity, J/kg-K 480
520
Thermal Expansion, µm/m-K 11
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 13
75
Density, g/cm3 7.8
5.1
Embodied Carbon, kg CO2/kg material 2.6
34
Embodied Energy, MJ/kg 38
540
Embodied Water, L/kg 130
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 120
110
Resilience: Unit (Modulus of Resilience), kJ/m3 1510 to 3600
3460
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
32
Strength to Weight: Axial, points 34 to 48
56
Strength to Weight: Bending, points 28 to 35
44
Thermal Shock Resistance, points 32 to 45
66

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.5
Carbon (C), % 0 to 0.070
0 to 0.080
Chromium (Cr), % 14 to 15.5
0
Copper (Cu), % 2.5 to 3.2
0
Hydrogen (H), % 0
0 to 0.0090
Iron (Fe), % 73.6 to 79
0 to 0.25
Manganese (Mn), % 0 to 0.7
0
Molybdenum (Mo), % 0
6.5 to 7.5
Nickel (Ni), % 4.5 to 5.5
0
Niobium (Nb), % 0 to 0.35
6.5 to 7.5
Nitrogen (N), % 0 to 0.050
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 0
84.9 to 88