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Grade C-6 Titanium vs. SAE-AISI 1090 Steel

Grade C-6 titanium belongs to the titanium alloys classification, while SAE-AISI 1090 steel belongs to the iron 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 grade C-6 titanium and the bottom bar is SAE-AISI 1090 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 290
220 to 280
Elastic (Young's, Tensile) Modulus, GPa 100
190
Elongation at Break, % 9.0
11
Fatigue Strength, MPa 460
320 to 380
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 39
72
Tensile Strength: Ultimate (UTS), MPa 890
790 to 950
Tensile Strength: Yield (Proof), MPa 830
520 to 610

Thermal Properties

Latent Heat of Fusion, J/g 410
240
Maximum Temperature: Mechanical, °C 310
400
Melting Completion (Liquidus), °C 1580
1450
Melting Onset (Solidus), °C 1530
1410
Specific Heat Capacity, J/kg-K 550
470
Thermal Conductivity, W/m-K 7.8
50
Thermal Expansion, µm/m-K 9.8
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.2
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 36
1.8
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 30
1.4
Embodied Energy, MJ/kg 480
19
Embodied Water, L/kg 190
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78
82 to 91
Resilience: Unit (Modulus of Resilience), kJ/m3 3300
730 to 1000
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 55
28 to 34
Strength to Weight: Bending, points 46
24 to 27
Thermal Diffusivity, mm2/s 3.2
13
Thermal Shock Resistance, points 63
25 to 31

Alloy Composition

Aluminum (Al), % 4.0 to 6.0
0
Carbon (C), % 0 to 0.1
0.85 to 1.0
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.5
98 to 98.6
Manganese (Mn), % 0
0.6 to 0.9
Nickel (Ni), % 0 to 0.050
0
Oxygen (O), % 0 to 0.2
0
Phosphorus (P), % 0
0 to 0.040
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 2.0 to 3.0
0
Titanium (Ti), % 89.7 to 94
0
Residuals, % 0 to 0.4
0