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EN 1.8898 Steel vs. Titanium 6-7

EN 1.8898 steel belongs to the iron alloys classification, while titanium 6-7 belongs to the titanium alloys. There are 26 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 1.8898 steel and the bottom bar is titanium 6-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
120
Elongation at Break, % 18
11
Fatigue Strength, MPa 330
530
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
45
Shear Strength, MPa 370
610
Tensile Strength: Ultimate (UTS), MPa 600
1020
Tensile Strength: Yield (Proof), MPa 490
900

Thermal Properties

Latent Heat of Fusion, J/g 250
410
Maximum Temperature: Mechanical, °C 400
300
Melting Completion (Liquidus), °C 1460
1700
Melting Onset (Solidus), °C 1420
1650
Specific Heat Capacity, J/kg-K 470
520
Thermal Expansion, µm/m-K 13
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
75
Density, g/cm3 7.8
5.1
Embodied Carbon, kg CO2/kg material 1.6
34
Embodied Energy, MJ/kg 22
540
Embodied Water, L/kg 48
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
110
Resilience: Unit (Modulus of Resilience), kJ/m3 650
3460
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
32
Strength to Weight: Axial, points 21
56
Strength to Weight: Bending, points 20
44
Thermal Shock Resistance, points 18
66

Alloy Composition

Aluminum (Al), % 0.020 to 0.060
5.5 to 6.5
Carbon (C), % 0 to 0.16
0 to 0.080
Hydrogen (H), % 0
0 to 0.0090
Iron (Fe), % 96.7 to 99.98
0 to 0.25
Manganese (Mn), % 0 to 1.7
0
Molybdenum (Mo), % 0 to 0.2
6.5 to 7.5
Nickel (Ni), % 0 to 0.3
0
Niobium (Nb), % 0 to 0.050
6.5 to 7.5
Nitrogen (N), % 0 to 0.025
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 0.6
0
Sulfur (S), % 0 to 0.030
0
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 0 to 0.050
84.9 to 88
Vanadium (V), % 0 to 0.12
0