MakeItFrom.com
Menu (ESC)

Grade 36 Titanium vs. Grade 31 Titanium

Both grade 36 titanium and grade 31 titanium are titanium alloys. Both are furnished in the annealed condition. They have 55% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is grade 36 titanium and the bottom bar is grade 31 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 11
20
Fatigue Strength, MPa 300
300
Poisson's Ratio 0.36
0.32
Shear Modulus, GPa 39
41
Shear Strength, MPa 320
320
Tensile Strength: Ultimate (UTS), MPa 530
510
Tensile Strength: Yield (Proof), MPa 520
450

Thermal Properties

Latent Heat of Fusion, J/g 370
420
Maximum Temperature: Mechanical, °C 320
320
Melting Completion (Liquidus), °C 2020
1660
Melting Onset (Solidus), °C 1950
1610
Specific Heat Capacity, J/kg-K 420
540
Thermal Expansion, µm/m-K 8.1
8.7

Otherwise Unclassified Properties

Density, g/cm3 6.3
4.5
Embodied Carbon, kg CO2/kg material 58
36
Embodied Energy, MJ/kg 920
600
Embodied Water, L/kg 130
230

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 59
99
Resilience: Unit (Modulus of Resilience), kJ/m3 1260
940
Stiffness to Weight: Axial, points 9.3
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 23
32
Strength to Weight: Bending, points 23
32
Thermal Shock Resistance, points 45
39

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.080
Cobalt (Co), % 0
0.2 to 0.8
Hydrogen (H), % 0 to 0.0035
0 to 0.015
Iron (Fe), % 0 to 0.030
0 to 0.3
Niobium (Nb), % 42 to 47
0
Nitrogen (N), % 0 to 0.030
0 to 0.050
Oxygen (O), % 0 to 0.16
0 to 0.35
Palladium (Pd), % 0
0.040 to 0.080
Titanium (Ti), % 52.3 to 58
97.9 to 99.76
Residuals, % 0
0 to 0.4