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Grade 6 Titanium vs. ACI-ASTM CG6MMN Steel

Grade 6 titanium belongs to the titanium alloys classification, while ACI-ASTM CG6MMN steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is grade 6 titanium and the bottom bar is ACI-ASTM CG6MMN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
200
Elongation at Break, % 11
34
Fatigue Strength, MPa 290
260
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 39
79
Tensile Strength: Ultimate (UTS), MPa 890
670
Tensile Strength: Yield (Proof), MPa 840
320

Thermal Properties

Latent Heat of Fusion, J/g 410
300
Maximum Temperature: Mechanical, °C 310
1080
Melting Completion (Liquidus), °C 1580
1420
Melting Onset (Solidus), °C 1530
1380
Specific Heat Capacity, J/kg-K 550
480
Thermal Expansion, µm/m-K 9.4
17

Otherwise Unclassified Properties

Base Metal Price, % relative 36
22
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 30
4.8
Embodied Energy, MJ/kg 480
68
Embodied Water, L/kg 190
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
190
Resilience: Unit (Modulus of Resilience), kJ/m3 3390
260
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 55
24
Strength to Weight: Bending, points 46
22
Thermal Shock Resistance, points 65
14

Alloy Composition

Aluminum (Al), % 4.0 to 6.0
0
Carbon (C), % 0 to 0.080
0 to 0.060
Chromium (Cr), % 0
20.5 to 23.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.5
51.9 to 62.1
Manganese (Mn), % 0
4.0 to 6.0
Molybdenum (Mo), % 0
1.5 to 3.0
Nickel (Ni), % 0
11.5 to 13.5
Niobium (Nb), % 0
0.1 to 0.3
Nitrogen (N), % 0 to 0.030
0.2 to 0.4
Oxygen (O), % 0 to 0.2
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 2.0 to 3.0
0
Titanium (Ti), % 89.8 to 94
0
Vanadium (V), % 0
0.1 to 0.3
Residuals, % 0 to 0.4
0