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ACI-ASTM CB7Cu-2 Steel vs. ASTM Grade LC9 Steel

Both ACI-ASTM CB7Cu-2 steel and ASTM grade LC9 steel are iron alloys. They have 82% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CB7Cu-2 steel and the bottom bar is ASTM grade LC9 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 300 to 420
200
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 5.7 to 11
22
Fatigue Strength, MPa 420 to 590
420
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
73
Tensile Strength: Ultimate (UTS), MPa 960 to 1350
660
Tensile Strength: Yield (Proof), MPa 760 to 1180
590

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Melting Completion (Liquidus), °C 1430
1450
Melting Onset (Solidus), °C 1380
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
8.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
10

Otherwise Unclassified Properties

Base Metal Price, % relative 13
8.0
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.6
2.3
Embodied Energy, MJ/kg 38
31
Embodied Water, L/kg 130
65

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 120
140
Resilience: Unit (Modulus of Resilience), kJ/m3 1510 to 3600
920
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 34 to 48
23
Strength to Weight: Bending, points 28 to 35
21
Thermal Shock Resistance, points 32 to 45
20

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.13
Chromium (Cr), % 14 to 15.5
0 to 0.5
Copper (Cu), % 2.5 to 3.2
0 to 0.3
Iron (Fe), % 73.6 to 79
87.4 to 91.5
Manganese (Mn), % 0 to 0.7
0 to 0.9
Molybdenum (Mo), % 0
0 to 0.2
Nickel (Ni), % 4.5 to 5.5
8.5 to 10
Niobium (Nb), % 0 to 0.35
0
Nitrogen (N), % 0 to 0.050
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.45
Sulfur (S), % 0 to 0.030
0 to 0.045
Vanadium (V), % 0
0 to 0.030