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Grade 7 Titanium vs. SAE-AISI M10 Steel

Grade 7 titanium belongs to the titanium alloys classification, while SAE-AISI M10 steel belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is grade 7 titanium and the bottom bar is SAE-AISI M10 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 38
76
Tensile Strength: Ultimate (UTS), MPa 420
740 to 2170

Thermal Properties

Latent Heat of Fusion, J/g 420
270
Melting Completion (Liquidus), °C 1660
1520
Melting Onset (Solidus), °C 1610
1470
Specific Heat Capacity, J/kg-K 540
460
Thermal Conductivity, W/m-K 22
31
Thermal Expansion, µm/m-K 9.2
12

Otherwise Unclassified Properties

Density, g/cm3 4.5
7.9
Embodied Carbon, kg CO2/kg material 47
8.3
Embodied Energy, MJ/kg 800
120
Embodied Water, L/kg 470
100

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 26
26 to 76
Strength to Weight: Bending, points 28
23 to 47
Thermal Diffusivity, mm2/s 8.9
8.5
Thermal Shock Resistance, points 31
23 to 68

Alloy Composition

Carbon (C), % 0 to 0.080
0.84 to 1.1
Chromium (Cr), % 0
3.8 to 4.5
Copper (Cu), % 0
0 to 0.25
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
82.3 to 85.6
Manganese (Mn), % 0
0.1 to 0.4
Molybdenum (Mo), % 0
7.8 to 8.5
Nickel (Ni), % 0
0 to 0.3
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.25
0
Palladium (Pd), % 0.12 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), % 98.7 to 99.88
0
Vanadium (V), % 0
1.8 to 2.2
Residuals, % 0 to 0.4
0