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Titanium 6-7 vs. AISI 415 Stainless Steel

Titanium 6-7 belongs to the titanium alloys classification, while AISI 415 stainless steel belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is titanium 6-7 and the bottom bar is AISI 415 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 11
17
Fatigue Strength, MPa 530
430
Poisson's Ratio 0.33
0.28
Reduction in Area, % 29
50
Shear Modulus, GPa 45
76
Shear Strength, MPa 610
550
Tensile Strength: Ultimate (UTS), MPa 1020
900
Tensile Strength: Yield (Proof), MPa 900
700

Thermal Properties

Latent Heat of Fusion, J/g 410
270
Maximum Temperature: Mechanical, °C 300
780
Melting Completion (Liquidus), °C 1700
1450
Melting Onset (Solidus), °C 1650
1400
Specific Heat Capacity, J/kg-K 520
480
Thermal Expansion, µm/m-K 9.3
10

Otherwise Unclassified Properties

Base Metal Price, % relative 75
11
Density, g/cm3 5.1
7.8
Embodied Carbon, kg CO2/kg material 34
2.5
Embodied Energy, MJ/kg 540
35
Embodied Water, L/kg 190
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
140
Resilience: Unit (Modulus of Resilience), kJ/m3 3460
1250
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 32
25
Strength to Weight: Axial, points 56
32
Strength to Weight: Bending, points 44
26
Thermal Shock Resistance, points 66
33

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0 to 0.080
0 to 0.050
Chromium (Cr), % 0
11.5 to 14
Hydrogen (H), % 0 to 0.0090
0
Iron (Fe), % 0 to 0.25
77.8 to 84
Manganese (Mn), % 0
0.5 to 1.0
Molybdenum (Mo), % 6.5 to 7.5
0.5 to 1.0
Nickel (Ni), % 0
3.5 to 5.5
Niobium (Nb), % 6.5 to 7.5
0
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.2
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 0.6
Sulfur (S), % 0
0 to 0.030
Tantalum (Ta), % 0 to 0.5
0
Titanium (Ti), % 84.9 to 88
0