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ASTM Grade LC9 Steel vs. AWS ERTi-1

ASTM grade LC9 steel belongs to the iron alloys classification, while AWS ERTi-1 belongs to the titanium alloys. There are 27 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 AWS ERTi-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 22
24
Fatigue Strength, MPa 420
120
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 73
41
Tensile Strength: Ultimate (UTS), MPa 660
240
Tensile Strength: Yield (Proof), MPa 590
170

Thermal Properties

Latent Heat of Fusion, J/g 260
420
Maximum Temperature: Mechanical, °C 430
320
Melting Completion (Liquidus), °C 1450
1670
Melting Onset (Solidus), °C 1410
1620
Specific Heat Capacity, J/kg-K 470
540
Thermal Expansion, µm/m-K 13
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.9
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 10
7.1

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
37
Density, g/cm3 7.9
4.5
Embodied Carbon, kg CO2/kg material 2.3
31
Embodied Energy, MJ/kg 31
510
Embodied Water, L/kg 65
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
52
Resilience: Unit (Modulus of Resilience), kJ/m3 920
140
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 23
15
Strength to Weight: Bending, points 21
19
Thermal Shock Resistance, points 20
19

Alloy Composition

Carbon (C), % 0 to 0.13
0 to 0.030
Chromium (Cr), % 0 to 0.5
0
Copper (Cu), % 0 to 0.3
0
Hydrogen (H), % 0
0 to 0.0050
Iron (Fe), % 87.4 to 91.5
0 to 0.080
Manganese (Mn), % 0 to 0.9
0
Molybdenum (Mo), % 0 to 0.2
0
Nickel (Ni), % 8.5 to 10
0
Nitrogen (N), % 0
0 to 0.012
Oxygen (O), % 0
0.030 to 0.1
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.45
0
Sulfur (S), % 0 to 0.045
0
Titanium (Ti), % 0
99.773 to 99.97
Vanadium (V), % 0 to 0.030
0