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Grade 6 Titanium vs. Grade 350 Maraging Steel

Grade 6 titanium belongs to the titanium alloys classification, while grade 350 maraging steel belongs to the iron alloys. There are 23 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 6 titanium and the bottom bar is grade 350 maraging steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
190
Elongation at Break, % 11
4.1 to 18
Poisson's Ratio 0.32
0.3
Shear Modulus, GPa 39
75
Shear Strength, MPa 530
710 to 1400
Tensile Strength: Ultimate (UTS), MPa 890
1140 to 2420
Tensile Strength: Yield (Proof), MPa 840
830 to 2300

Thermal Properties

Latent Heat of Fusion, J/g 410
270
Melting Completion (Liquidus), °C 1580
1470
Melting Onset (Solidus), °C 1530
1420
Specific Heat Capacity, J/kg-K 550
450
Thermal Expansion, µm/m-K 9.4
12

Otherwise Unclassified Properties

Base Metal Price, % relative 36
39
Density, g/cm3 4.5
8.2
Embodied Carbon, kg CO2/kg material 30
5.6
Embodied Energy, MJ/kg 480
74
Embodied Water, L/kg 190
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
98 to 190
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
23
Strength to Weight: Axial, points 55
38 to 82
Strength to Weight: Bending, points 46
29 to 49
Thermal Shock Resistance, points 65
35 to 74

Alloy Composition

Aluminum (Al), % 4.0 to 6.0
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
11.5 to 12.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.5
61.2 to 64.6
Manganese (Mn), % 0
0 to 0.1
Molybdenum (Mo), % 0
4.6 to 5.2
Nickel (Ni), % 0
18 to 19
Nitrogen (N), % 0 to 0.030
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
Tin (Sn), % 2.0 to 3.0
0
Titanium (Ti), % 89.8 to 94
1.3 to 1.6
Zirconium (Zr), % 0
0 to 0.020
Residuals, % 0 to 0.4
0