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Grade 350 Maraging Steel vs. Grade 3 Titanium

Grade 350 maraging steel belongs to the iron alloys classification, while grade 3 titanium belongs to the titanium alloys. There are 23 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 350 maraging steel and the bottom bar is grade 3 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 4.1 to 18
21
Poisson's Ratio 0.3
0.32
Shear Modulus, GPa 75
39
Shear Strength, MPa 710 to 1400
320
Tensile Strength: Ultimate (UTS), MPa 1140 to 2420
510
Tensile Strength: Yield (Proof), MPa 830 to 2300
440

Thermal Properties

Latent Heat of Fusion, J/g 270
420
Melting Completion (Liquidus), °C 1470
1660
Melting Onset (Solidus), °C 1420
1610
Specific Heat Capacity, J/kg-K 450
540
Thermal Expansion, µm/m-K 12
9.2

Otherwise Unclassified Properties

Base Metal Price, % relative 39
37
Density, g/cm3 8.2
4.5
Embodied Carbon, kg CO2/kg material 5.6
31
Embodied Energy, MJ/kg 74
510
Embodied Water, L/kg 160
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 190
100
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
35
Strength to Weight: Axial, points 38 to 82
32
Strength to Weight: Bending, points 29 to 49
32
Thermal Shock Resistance, points 35 to 74
37

Alloy Composition

Aluminum (Al), % 0.050 to 0.15
0
Boron (B), % 0 to 0.0030
0
Calcium (Ca), % 0 to 0.050
0
Carbon (C), % 0 to 0.030
0 to 0.080
Cobalt (Co), % 11.5 to 12.5
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 61.2 to 64.6
0 to 0.3
Manganese (Mn), % 0 to 0.1
0
Molybdenum (Mo), % 4.6 to 5.2
0
Nickel (Ni), % 18 to 19
0
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.35
Phosphorus (P), % 0 to 0.010
0
Silicon (Si), % 0 to 0.1
0
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 1.3 to 1.6
98.8 to 100
Zirconium (Zr), % 0 to 0.020
0
Residuals, % 0
0 to 0.4