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Grade 37 Titanium vs. SAE-AISI M6 Steel

Grade 37 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 37 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 40
77
Tensile Strength: Ultimate (UTS), MPa 390
840 to 2210

Thermal Properties

Latent Heat of Fusion, J/g 420
260
Melting Completion (Liquidus), °C 1650
1560
Melting Onset (Solidus), °C 1600
1510
Specific Heat Capacity, J/kg-K 550
440
Thermal Conductivity, W/m-K 21
17
Thermal Expansion, µm/m-K 8.9
12

Otherwise Unclassified Properties

Base Metal Price, % relative 36
39
Density, g/cm3 4.5
8.4
Embodied Carbon, kg CO2/kg material 31
8.0
Embodied Energy, MJ/kg 500
120
Embodied Water, L/kg 120
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 8.4
4.7
Thermal Shock Resistance, points 29
26 to 68

Alloy Composition

Aluminum (Al), % 1.0 to 2.0
0
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
Silicon (Si), % 0
0.2 to 0.45
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 96.9 to 99
0
Tungsten (W), % 0
3.8 to 4.8
Vanadium (V), % 0
1.3 to 1.7
Residuals, % 0 to 0.4
0