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ASTM Grade LC9 Steel vs. Grade C-6 Titanium

ASTM grade LC9 steel belongs to the iron alloys classification, while grade C-6 titanium belongs to the titanium alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ASTM grade LC9 steel and the bottom bar is grade C-6 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
290
Elastic (Young's, Tensile) Modulus, GPa 190
100
Elongation at Break, % 22
9.0
Fatigue Strength, MPa 420
460
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 73
39
Tensile Strength: Ultimate (UTS), MPa 660
890
Tensile Strength: Yield (Proof), MPa 590
830

Thermal Properties

Latent Heat of Fusion, J/g 260
410
Maximum Temperature: Mechanical, °C 430
310
Melting Completion (Liquidus), °C 1450
1580
Melting Onset (Solidus), °C 1410
1530
Specific Heat Capacity, J/kg-K 470
550
Thermal Expansion, µm/m-K 13
9.8

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.9
1.2
Electrical Conductivity: Equal Weight (Specific), % IACS 10
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
36
Density, g/cm3 7.9
4.5
Embodied Carbon, kg CO2/kg material 2.3
30
Embodied Energy, MJ/kg 31
480
Embodied Water, L/kg 65
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
78
Resilience: Unit (Modulus of Resilience), kJ/m3 920
3300
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 23
55
Strength to Weight: Bending, points 21
46
Thermal Shock Resistance, points 20
63

Alloy Composition

Aluminum (Al), % 0
4.0 to 6.0
Carbon (C), % 0 to 0.13
0 to 0.1
Chromium (Cr), % 0 to 0.5
0
Copper (Cu), % 0 to 0.3
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 87.4 to 91.5
0 to 0.5
Manganese (Mn), % 0 to 0.9
0
Molybdenum (Mo), % 0 to 0.2
0
Nickel (Ni), % 8.5 to 10
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.45
0
Sulfur (S), % 0 to 0.045
0
Tin (Sn), % 0
2.0 to 3.0
Titanium (Ti), % 0
89.7 to 94
Vanadium (V), % 0 to 0.030
0
Residuals, % 0
0 to 0.4