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Grade 6 Titanium vs. EN 1.7108 Steel

Grade 6 titanium belongs to the titanium alloys classification, while EN 1.7108 steel belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is grade 6 titanium and the bottom bar is EN 1.7108 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
190
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 39
72
Tensile Strength: Ultimate (UTS), MPa 890
670 to 2070

Thermal Properties

Latent Heat of Fusion, J/g 410
280
Maximum Temperature: Mechanical, °C 310
410
Melting Completion (Liquidus), °C 1580
1430
Melting Onset (Solidus), °C 1530
1390
Specific Heat Capacity, J/kg-K 550
480
Thermal Conductivity, W/m-K 7.8
46
Thermal Expansion, µm/m-K 9.4
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.2
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 36
2.1
Density, g/cm3 4.5
7.7
Embodied Carbon, kg CO2/kg material 30
1.5
Embodied Energy, MJ/kg 480
20
Embodied Water, L/kg 190
47

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 55
24 to 75
Strength to Weight: Bending, points 46
22 to 47
Thermal Diffusivity, mm2/s 3.2
12
Thermal Shock Resistance, points 65
20 to 63

Alloy Composition

Aluminum (Al), % 4.0 to 6.0
0
Carbon (C), % 0 to 0.080
0.57 to 0.65
Chromium (Cr), % 0
0.2 to 0.45
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.5
95.9 to 96.9
Manganese (Mn), % 0
0.7 to 1.0
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.2
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0
1.6 to 2.0
Sulfur (S), % 0
0 to 0.025
Tin (Sn), % 2.0 to 3.0
0
Titanium (Ti), % 89.8 to 94
0
Residuals, % 0 to 0.4
0