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ASTM Grade LC9 Steel vs. Grade C-5 Titanium

ASTM grade LC9 steel belongs to the iron alloys classification, while grade C-5 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-5 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
310
Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 22
6.7
Fatigue Strength, MPa 420
510
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 73
40
Tensile Strength: Ultimate (UTS), MPa 660
1000
Tensile Strength: Yield (Proof), MPa 590
940

Thermal Properties

Latent Heat of Fusion, J/g 260
410
Maximum Temperature: Mechanical, °C 430
340
Melting Completion (Liquidus), °C 1450
1610
Melting Onset (Solidus), °C 1410
1560
Specific Heat Capacity, J/kg-K 470
560
Thermal Expansion, µm/m-K 13
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.9
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 10
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
36
Density, g/cm3 7.9
4.4
Embodied Carbon, kg CO2/kg material 2.3
38
Embodied Energy, MJ/kg 31
610
Embodied Water, L/kg 65
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
66
Resilience: Unit (Modulus of Resilience), kJ/m3 920
4200
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 23
63
Strength to Weight: Bending, points 21
50
Thermal Shock Resistance, points 20
71

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.8
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 0.4
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 0.25
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.45
0
Sulfur (S), % 0 to 0.045
0
Titanium (Ti), % 0
87.5 to 91
Vanadium (V), % 0 to 0.030
3.5 to 4.5
Residuals, % 0
0 to 0.4