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ACI-ASTM CB6 Steel vs. Grade 37 Titanium

ACI-ASTM CB6 steel belongs to the iron alloys classification, while grade 37 titanium belongs to the titanium alloys. There are 30 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 CB6 steel and the bottom bar is grade 37 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 18
22
Fatigue Strength, MPa 410
170
Poisson's Ratio 0.28
0.32
Reduction in Area, % 40
34
Shear Modulus, GPa 77
40
Tensile Strength: Ultimate (UTS), MPa 880
390
Tensile Strength: Yield (Proof), MPa 660
250

Thermal Properties

Latent Heat of Fusion, J/g 280
420
Maximum Temperature: Mechanical, °C 870
310
Melting Completion (Liquidus), °C 1440
1650
Melting Onset (Solidus), °C 1390
1600
Specific Heat Capacity, J/kg-K 480
550
Thermal Conductivity, W/m-K 17
21
Thermal Expansion, µm/m-K 10
8.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
6.8

Otherwise Unclassified Properties

Base Metal Price, % relative 12
36
Density, g/cm3 7.8
4.5
Embodied Carbon, kg CO2/kg material 2.5
31
Embodied Energy, MJ/kg 36
500
Embodied Water, L/kg 130
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
76
Resilience: Unit (Modulus of Resilience), kJ/m3 1110
280
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 32
24
Strength to Weight: Bending, points 26
26
Thermal Diffusivity, mm2/s 4.6
8.4
Thermal Shock Resistance, points 31
29

Alloy Composition


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Aluminum (Al), % 0
1.0 to 2.0
Carbon (C), % 0 to 0.060
0 to 0.080
Chromium (Cr), % 15.5 to 17.5
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 74.4 to 81
0 to 0.3
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 3.5 to 5.5
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
96.9 to 99
Residuals, % 0
0 to 0.4