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Grade 26 Titanium vs. SAE-AISI M6 Steel

Grade 26 titanium belongs to the titanium alloys classification, while SAE-AISI M6 steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is grade 26 titanium and the bottom bar is SAE-AISI M6 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 41
77
Tensile Strength: Ultimate (UTS), MPa 390
840 to 2210

Thermal Properties

Latent Heat of Fusion, J/g 420
260
Melting Completion (Liquidus), °C 1660
1560
Melting Onset (Solidus), °C 1610
1510
Specific Heat Capacity, J/kg-K 540
440
Thermal Conductivity, W/m-K 21
17
Thermal Expansion, µm/m-K 9.2
12

Otherwise Unclassified Properties

Base Metal Price, % relative 37
39
Density, g/cm3 4.5
8.4
Embodied Carbon, kg CO2/kg material 33
8.0
Embodied Energy, MJ/kg 530
120
Embodied Water, L/kg 320
160

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
23
Strength to Weight: Axial, points 24
28 to 73
Strength to Weight: Bending, points 26
24 to 45
Thermal Diffusivity, mm2/s 8.6
4.7
Thermal Shock Resistance, points 28
26 to 68

Alloy Composition

Carbon (C), % 0 to 0.080
0.75 to 0.85
Chromium (Cr), % 0
3.8 to 4.5
Cobalt (Co), % 0
11 to 13
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
68.8 to 74.6
Manganese (Mn), % 0
0.15 to 0.4
Molybdenum (Mo), % 0
4.5 to 5.5
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.25
0
Phosphorus (P), % 0
0 to 0.030
Ruthenium (Ru), % 0.080 to 0.14
0
Silicon (Si), % 0
0.2 to 0.45
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 98.8 to 99.92
0
Tungsten (W), % 0
3.8 to 4.8
Vanadium (V), % 0
1.3 to 1.7
Residuals, % 0 to 0.4
0