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EN 1.7117 Steel vs. Titanium 6-6-2

EN 1.7117 steel belongs to the iron alloys classification, while titanium 6-6-2 belongs to the titanium alloys. There are 24 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is EN 1.7117 steel and the bottom bar is titanium 6-6-2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
120
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 72
44
Tensile Strength: Ultimate (UTS), MPa 660 to 1930
1140 to 1370

Thermal Properties

Latent Heat of Fusion, J/g 270
400
Maximum Temperature: Mechanical, °C 420
310
Melting Completion (Liquidus), °C 1440
1610
Melting Onset (Solidus), °C 1400
1560
Specific Heat Capacity, J/kg-K 480
540
Thermal Conductivity, W/m-K 43
5.5
Thermal Expansion, µm/m-K 13
9.4

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
1.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
40
Density, g/cm3 7.7
4.8
Embodied Carbon, kg CO2/kg material 1.5
29
Embodied Energy, MJ/kg 21
470
Embodied Water, L/kg 51
200

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
34
Strength to Weight: Axial, points 24 to 69
66 to 79
Strength to Weight: Bending, points 22 to 44
50 to 57
Thermal Diffusivity, mm2/s 12
2.1
Thermal Shock Resistance, points 20 to 58
75 to 90

Alloy Composition

Aluminum (Al), % 0
5.0 to 6.0
Carbon (C), % 0.49 to 0.56
0 to 0.050
Chromium (Cr), % 0.7 to 1.0
0
Copper (Cu), % 0
0.35 to 1.0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 95.2 to 96.4
0.35 to 1.0
Manganese (Mn), % 0.7 to 1.0
0
Molybdenum (Mo), % 0
5.0 to 6.0
Nickel (Ni), % 0.5 to 0.7
0
Nitrogen (N), % 0
0 to 0.040
Oxygen (O), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 1.2 to 1.5
0
Sulfur (S), % 0 to 0.025
0
Tin (Sn), % 0
1.5 to 2.5
Titanium (Ti), % 0
82.8 to 87.8
Residuals, % 0
0 to 0.4

Comparable Variants