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Titanium 6-7 vs. Grade 300 Maraging Steel

Titanium 6-7 belongs to the titanium alloys classification, while grade 300 maraging steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is titanium 6-7 and the bottom bar is grade 300 maraging steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
190
Elongation at Break, % 11
6.5 to 18
Poisson's Ratio 0.33
0.3
Shear Modulus, GPa 45
75
Shear Strength, MPa 610
640 to 1190
Tensile Strength: Ultimate (UTS), MPa 1020
1030 to 2030
Tensile Strength: Yield (Proof), MPa 900
760 to 1990

Thermal Properties

Latent Heat of Fusion, J/g 410
270
Melting Completion (Liquidus), °C 1700
1480
Melting Onset (Solidus), °C 1650
1430
Specific Heat Capacity, J/kg-K 520
450
Thermal Expansion, µm/m-K 9.3
12

Otherwise Unclassified Properties

Base Metal Price, % relative 75
34
Density, g/cm3 5.1
8.2
Embodied Carbon, kg CO2/kg material 34
5.1
Embodied Energy, MJ/kg 540
68
Embodied Water, L/kg 190
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
130 to 170
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 32
23
Strength to Weight: Axial, points 56
35 to 68
Strength to Weight: Bending, points 44
28 to 43
Thermal Shock Resistance, points 66
31 to 62

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0.050 to 0.15
Boron (B), % 0
0 to 0.0030
Calcium (Ca), % 0
0 to 0.050
Carbon (C), % 0 to 0.080
0 to 0.030
Cobalt (Co), % 0
8.5 to 9.5
Hydrogen (H), % 0 to 0.0090
0
Iron (Fe), % 0 to 0.25
65 to 68.4
Manganese (Mn), % 0
0 to 0.1
Molybdenum (Mo), % 6.5 to 7.5
4.6 to 5.2
Nickel (Ni), % 0
18 to 19
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 0.010
Silicon (Si), % 0
0 to 0.1
Sulfur (S), % 0
0 to 0.010
Tantalum (Ta), % 0 to 0.5
0
Titanium (Ti), % 84.9 to 88
0.5 to 0.8
Zirconium (Zr), % 0
0 to 0.020