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Grade 2 Titanium vs. EN 1.8509 Steel

Grade 2 titanium belongs to the titanium alloys classification, while EN 1.8509 steel belongs to the iron alloys. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is grade 2 titanium and the bottom bar is EN 1.8509 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
340
Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 23
11
Fatigue Strength, MPa 250
580
Impact Strength: V-Notched Charpy, J 160
29
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 38
73
Shear Strength, MPa 270
680
Tensile Strength: Ultimate (UTS), MPa 420
1130
Tensile Strength: Yield (Proof), MPa 360
940

Thermal Properties

Latent Heat of Fusion, J/g 420
250
Maximum Temperature: Mechanical, °C 320
440
Melting Completion (Liquidus), °C 1660
1450
Melting Onset (Solidus), °C 1610
1410
Specific Heat Capacity, J/kg-K 540
480
Thermal Conductivity, W/m-K 22
39
Thermal Expansion, µm/m-K 9.0
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 7.2
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 37
2.8
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 31
1.6
Embodied Energy, MJ/kg 510
22
Embodied Water, L/kg 110
65

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
120
Resilience: Unit (Modulus of Resilience), kJ/m3 600
2340
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 26
40
Strength to Weight: Bending, points 28
31
Thermal Diffusivity, mm2/s 8.9
10
Thermal Shock Resistance, points 32
33

Alloy Composition

Aluminum (Al), % 0
0.8 to 1.2
Carbon (C), % 0 to 0.080
0.38 to 0.45
Chromium (Cr), % 0
1.5 to 1.8
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
95.5 to 97.1
Manganese (Mn), % 0
0.4 to 0.7
Molybdenum (Mo), % 0
0.2 to 0.35
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.25
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0
0 to 0.4
Sulfur (S), % 0
0 to 0.035
Titanium (Ti), % 98.9 to 100
0
Residuals, % 0 to 0.4
0