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Grade 37 Titanium vs. AWS E33-31

Grade 37 titanium belongs to the titanium alloys classification, while AWS E33-31 belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is grade 37 titanium and the bottom bar is AWS E33-31.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
210
Elongation at Break, % 22
29
Poisson's Ratio 0.32
0.27
Shear Modulus, GPa 40
81
Tensile Strength: Ultimate (UTS), MPa 390
810

Thermal Properties

Latent Heat of Fusion, J/g 420
320
Melting Completion (Liquidus), °C 1650
1380
Melting Onset (Solidus), °C 1600
1330
Specific Heat Capacity, J/kg-K 550
480
Thermal Expansion, µm/m-K 8.9
14

Otherwise Unclassified Properties

Base Metal Price, % relative 36
36
Density, g/cm3 4.5
7.9
Embodied Carbon, kg CO2/kg material 31
6.0
Embodied Energy, MJ/kg 500
86
Embodied Water, L/kg 120
260

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 24
28
Strength to Weight: Bending, points 26
24
Thermal Shock Resistance, points 29
19

Alloy Composition

Aluminum (Al), % 1.0 to 2.0
0
Carbon (C), % 0 to 0.080
0 to 0.030
Chromium (Cr), % 0
31 to 35
Copper (Cu), % 0
0.4 to 0.8
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
24.7 to 34.8
Manganese (Mn), % 0
2.5 to 4.0
Molybdenum (Mo), % 0
1.0 to 2.0
Nickel (Ni), % 0
30 to 32
Nitrogen (N), % 0 to 0.030
0.3 to 0.5
Oxygen (O), % 0 to 0.25
0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0
0 to 0.9
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 96.9 to 99
0
Residuals, % 0 to 0.4
0