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Grade 6 Titanium vs. SAE-AISI 50B44 Steel

Grade 6 titanium belongs to the titanium alloys classification, while SAE-AISI 50B44 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is grade 6 titanium and the bottom bar is SAE-AISI 50B44 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
190
Elongation at Break, % 11
22
Fatigue Strength, MPa 290
250
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 39
73
Shear Strength, MPa 530
360
Tensile Strength: Ultimate (UTS), MPa 890
570
Tensile Strength: Yield (Proof), MPa 840
360

Thermal Properties

Latent Heat of Fusion, J/g 410
250
Maximum Temperature: Mechanical, °C 310
410
Melting Completion (Liquidus), °C 1580
1460
Melting Onset (Solidus), °C 1530
1420
Specific Heat Capacity, J/kg-K 550
470
Thermal Conductivity, W/m-K 7.8
46
Thermal Expansion, µm/m-K 9.4
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.2
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 36
2.0
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 30
1.4
Embodied Energy, MJ/kg 480
19
Embodied Water, L/kg 190
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
110
Resilience: Unit (Modulus of Resilience), kJ/m3 3390
350
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 55
20
Strength to Weight: Bending, points 46
20
Thermal Diffusivity, mm2/s 3.2
12
Thermal Shock Resistance, points 65
17

Alloy Composition

Aluminum (Al), % 4.0 to 6.0
0
Boron (B), % 0
0.00050 to 0.0030
Carbon (C), % 0 to 0.080
0.43 to 0.48
Chromium (Cr), % 0
0.2 to 0.6
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.5
97.5 to 98.5
Manganese (Mn), % 0
0.75 to 1.0
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.2
0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0
0.15 to 0.35
Sulfur (S), % 0
0 to 0.040
Tin (Sn), % 2.0 to 3.0
0
Titanium (Ti), % 89.8 to 94
0
Residuals, % 0 to 0.4
0