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EN 1.0108 Steel vs. Grade 9 Titanium

EN 1.0108 steel belongs to the iron alloys classification, while grade 9 titanium belongs to the titanium 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 EN 1.0108 steel and the bottom bar is grade 9 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 29
11 to 17
Fatigue Strength, MPa 150
330 to 480
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 73
40
Shear Strength, MPa 250
430 to 580
Tensile Strength: Ultimate (UTS), MPa 380
700 to 960
Tensile Strength: Yield (Proof), MPa 200
540 to 830

Thermal Properties

Latent Heat of Fusion, J/g 250
410
Maximum Temperature: Mechanical, °C 400
330
Melting Completion (Liquidus), °C 1460
1640
Melting Onset (Solidus), °C 1420
1590
Specific Heat Capacity, J/kg-K 470
550
Thermal Conductivity, W/m-K 50
8.1
Thermal Expansion, µm/m-K 12
9.1

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
37
Density, g/cm3 7.9
4.5
Embodied Carbon, kg CO2/kg material 1.5
36
Embodied Energy, MJ/kg 19
580
Embodied Water, L/kg 48
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 94
89 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 110
1380 to 3220
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 13
43 to 60
Strength to Weight: Bending, points 15
39 to 48
Thermal Diffusivity, mm2/s 13
3.3
Thermal Shock Resistance, points 12
52 to 71

Alloy Composition

Aluminum (Al), % 0.020 to 0.2
2.5 to 3.5
Carbon (C), % 0 to 0.13
0 to 0.080
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.3
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 97.5 to 99.98
0 to 0.25
Manganese (Mn), % 0 to 0.7
0
Molybdenum (Mo), % 0 to 0.080
0
Nickel (Ni), % 0 to 0.3
0
Niobium (Nb), % 0 to 0.010
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.15
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.35
0
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0 to 0.040
92.6 to 95.5
Vanadium (V), % 0 to 0.020
2.0 to 3.0
Residuals, % 0
0 to 0.4