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Titanium 6-7 vs. AISI 446 Stainless Steel

Titanium 6-7 belongs to the titanium alloys classification, while AISI 446 stainless steel belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is titanium 6-7 and the bottom bar is AISI 446 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 11
23
Fatigue Strength, MPa 530
200
Poisson's Ratio 0.33
0.27
Reduction in Area, % 29
50
Shear Modulus, GPa 45
79
Shear Strength, MPa 610
360
Tensile Strength: Ultimate (UTS), MPa 1020
570
Tensile Strength: Yield (Proof), MPa 900
300

Thermal Properties

Latent Heat of Fusion, J/g 410
290
Maximum Temperature: Mechanical, °C 300
1180
Melting Completion (Liquidus), °C 1700
1510
Melting Onset (Solidus), °C 1650
1430
Specific Heat Capacity, J/kg-K 520
490
Thermal Expansion, µm/m-K 9.3
11

Otherwise Unclassified Properties

Base Metal Price, % relative 75
12
Density, g/cm3 5.1
7.7
Embodied Carbon, kg CO2/kg material 34
2.4
Embodied Energy, MJ/kg 540
35
Embodied Water, L/kg 190
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
110
Resilience: Unit (Modulus of Resilience), kJ/m3 3460
230
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 32
26
Strength to Weight: Axial, points 56
21
Strength to Weight: Bending, points 44
20
Thermal Shock Resistance, points 66
19

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0 to 0.080
0 to 0.2
Chromium (Cr), % 0
23 to 27
Hydrogen (H), % 0 to 0.0090
0
Iron (Fe), % 0 to 0.25
69.2 to 77
Manganese (Mn), % 0
0 to 1.5
Molybdenum (Mo), % 6.5 to 7.5
0
Nickel (Ni), % 0
0 to 0.75
Niobium (Nb), % 6.5 to 7.5
0
Nitrogen (N), % 0 to 0.050
0 to 0.25
Oxygen (O), % 0 to 0.2
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tantalum (Ta), % 0 to 0.5
0
Titanium (Ti), % 84.9 to 88
0