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Grade 2 Titanium vs. EN 1.6579 Steel

Grade 2 titanium belongs to the titanium alloys classification, while EN 1.6579 steel belongs to the iron alloys. There are 31 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 grade 2 titanium and the bottom bar is EN 1.6579 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
260 to 290
Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 23
11 to 14
Fatigue Strength, MPa 250
380 to 570
Impact Strength: V-Notched Charpy, J 160
35 to 41
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 38
73
Tensile Strength: Ultimate (UTS), MPa 420
850 to 980
Tensile Strength: Yield (Proof), MPa 360
600 to 910

Thermal Properties

Latent Heat of Fusion, J/g 420
250
Maximum Temperature: Mechanical, °C 320
440
Melting Completion (Liquidus), °C 1660
1460
Melting Onset (Solidus), °C 1610
1410
Specific Heat Capacity, J/kg-K 540
470
Thermal Conductivity, W/m-K 22
39
Thermal Expansion, µm/m-K 9.0
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 7.2
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 37
3.7
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 31
1.7
Embodied Energy, MJ/kg 510
22
Embodied Water, L/kg 110
56

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
100 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 600
950 to 2210
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 26
30 to 35
Strength to Weight: Bending, points 28
25 to 28
Thermal Diffusivity, mm2/s 8.9
11
Thermal Shock Resistance, points 32
25 to 29

Alloy Composition

Carbon (C), % 0 to 0.080
0.32 to 0.38
Chromium (Cr), % 0
1.4 to 1.7
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
94.2 to 96.1
Manganese (Mn), % 0
0.6 to 1.0
Molybdenum (Mo), % 0
0.15 to 0.35
Nickel (Ni), % 0
1.4 to 1.7
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 0.6
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 98.9 to 100
0
Residuals, % 0 to 0.4
0