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Grade 2 Titanium vs. AWS ER90S-B9

Grade 2 titanium belongs to the titanium alloys classification, while AWS ER90S-B9 belongs to the iron alloys. There are 27 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 grade 2 titanium and the bottom bar is AWS ER90S-B9.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 23
18
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 38
75
Tensile Strength: Ultimate (UTS), MPa 420
690
Tensile Strength: Yield (Proof), MPa 360
470

Thermal Properties

Latent Heat of Fusion, J/g 420
270
Melting Completion (Liquidus), °C 1660
1450
Melting Onset (Solidus), °C 1610
1410
Specific Heat Capacity, J/kg-K 540
470
Thermal Conductivity, W/m-K 22
25
Thermal Expansion, µm/m-K 9.0
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 7.2
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 37
7.0
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 31
2.6
Embodied Energy, MJ/kg 510
37
Embodied Water, L/kg 110
91

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
110
Resilience: Unit (Modulus of Resilience), kJ/m3 600
570
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 26
25
Strength to Weight: Bending, points 28
22
Thermal Diffusivity, mm2/s 8.9
6.9
Thermal Shock Resistance, points 32
19

Alloy Composition

Aluminum (Al), % 0
0 to 0.040
Carbon (C), % 0 to 0.080
0.070 to 0.13
Chromium (Cr), % 0
8.0 to 10.5
Copper (Cu), % 0
0 to 0.2
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
84.4 to 90.7
Manganese (Mn), % 0
0 to 1.2
Molybdenum (Mo), % 0
0.85 to 1.2
Nickel (Ni), % 0
0 to 0.8
Niobium (Nb), % 0
0.020 to 0.1
Nitrogen (N), % 0 to 0.030
0.030 to 0.070
Oxygen (O), % 0 to 0.25
0
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0
0.15 to 0.5
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 98.9 to 100
0
Vanadium (V), % 0
0.15 to 0.3
Residuals, % 0
0 to 0.5