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Grade 9 Titanium vs. EN 1.5525 Steel

Grade 9 titanium belongs to the titanium alloys classification, while EN 1.5525 steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is grade 9 titanium and the bottom bar is EN 1.5525 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 11 to 17
11 to 21
Fatigue Strength, MPa 330 to 480
210 to 310
Poisson's Ratio 0.32
0.29
Reduction in Area, % 28
62 to 73
Shear Modulus, GPa 40
73
Shear Strength, MPa 430 to 580
310 to 350
Tensile Strength: Ultimate (UTS), MPa 700 to 960
440 to 1440
Tensile Strength: Yield (Proof), MPa 540 to 830
300 to 490

Thermal Properties

Latent Heat of Fusion, J/g 410
250
Maximum Temperature: Mechanical, °C 330
400
Melting Completion (Liquidus), °C 1640
1460
Melting Onset (Solidus), °C 1590
1420
Specific Heat Capacity, J/kg-K 550
470
Thermal Conductivity, W/m-K 8.1
50
Thermal Expansion, µm/m-K 9.1
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 37
1.9
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 36
1.4
Embodied Energy, MJ/kg 580
19
Embodied Water, L/kg 150
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 89 to 110
44 to 240
Resilience: Unit (Modulus of Resilience), kJ/m3 1380 to 3220
240 to 640
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 43 to 60
16 to 51
Strength to Weight: Bending, points 39 to 48
16 to 36
Thermal Diffusivity, mm2/s 3.3
13
Thermal Shock Resistance, points 52 to 71
13 to 42

Alloy Composition

Aluminum (Al), % 2.5 to 3.5
0
Boron (B), % 0
0.00080 to 0.0050
Carbon (C), % 0 to 0.080
0.18 to 0.23
Chromium (Cr), % 0
0 to 0.3
Copper (Cu), % 0
0 to 0.25
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
97.7 to 98.9
Manganese (Mn), % 0
0.9 to 1.2
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.15
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0
0 to 0.3
Sulfur (S), % 0
0 to 0.025
Titanium (Ti), % 92.6 to 95.5
0
Vanadium (V), % 2.0 to 3.0
0
Residuals, % 0 to 0.4
0