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EN 1.7239 Steel vs. Titanium 6-7

EN 1.7239 steel belongs to the iron alloys classification, while titanium 6-7 belongs to the titanium alloys. There are 20 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is EN 1.7239 steel and the bottom bar is titanium 6-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
120
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
45
Tensile Strength: Ultimate (UTS), MPa 660 to 1990
1020

Thermal Properties

Latent Heat of Fusion, J/g 250
410
Maximum Temperature: Mechanical, °C 420
300
Melting Completion (Liquidus), °C 1460
1700
Melting Onset (Solidus), °C 1410
1650
Specific Heat Capacity, J/kg-K 470
520
Thermal Expansion, µm/m-K 13
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
75
Density, g/cm3 7.8
5.1
Embodied Carbon, kg CO2/kg material 1.5
34
Embodied Energy, MJ/kg 20
540
Embodied Water, L/kg 50
190

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
32
Strength to Weight: Axial, points 23 to 71
56
Strength to Weight: Bending, points 21 to 45
44
Thermal Shock Resistance, points 19 to 59
66

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.5
Carbon (C), % 0.56 to 0.64
0 to 0.080
Chromium (Cr), % 0.7 to 1.0
0
Hydrogen (H), % 0
0 to 0.0090
Iron (Fe), % 96.8 to 98
0 to 0.25
Manganese (Mn), % 0.7 to 1.0
0
Molybdenum (Mo), % 0.060 to 0.15
6.5 to 7.5
Niobium (Nb), % 0
6.5 to 7.5
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.4
0
Sulfur (S), % 0 to 0.025
0
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 0
84.9 to 88