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Grade 30 Titanium vs. SAE-AISI M1 Steel

Grade 30 titanium belongs to the titanium alloys classification, while SAE-AISI M1 steel belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is grade 30 titanium and the bottom bar is SAE-AISI M1 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
730 to 2140

Thermal Properties

Latent Heat of Fusion, J/g 420
270
Melting Completion (Liquidus), °C 1660
1560
Melting Onset (Solidus), °C 1610
1510
Specific Heat Capacity, J/kg-K 540
450
Thermal Conductivity, W/m-K 21
29
Thermal Expansion, µm/m-K 8.7
12

Otherwise Unclassified Properties

Density, g/cm3 4.5
8.1
Embodied Carbon, kg CO2/kg material 36
7.0
Embodied Energy, MJ/kg 600
99
Embodied Water, L/kg 230
98

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 24
25 to 73
Strength to Weight: Bending, points 26
22 to 45
Thermal Diffusivity, mm2/s 8.6
8.0
Thermal Shock Resistance, points 30
23 to 66

Alloy Composition

Carbon (C), % 0 to 0.080
0.78 to 0.88
Chromium (Cr), % 0
3.5 to 4.0
Cobalt (Co), % 0.2 to 0.8
0
Copper (Cu), % 0
0 to 0.25
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
81 to 84.8
Manganese (Mn), % 0
0.15 to 0.4
Molybdenum (Mo), % 0
8.2 to 9.2
Nickel (Ni), % 0
0 to 0.3
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.25
0
Palladium (Pd), % 0.040 to 0.080
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0.2 to 0.5
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 98 to 99.76
0
Tungsten (W), % 0
1.4 to 2.1
Vanadium (V), % 0
1.0 to 1.4
Residuals, % 0 to 0.4
0