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ACI-ASTM CG12 Steel vs. ASTM Grade LC9 Steel

Both ACI-ASTM CG12 steel and ASTM grade LC9 steel are iron alloys. They have 75% of their average alloy composition in common. There are 28 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 CG12 steel and the bottom bar is ASTM grade LC9 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
200
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
22
Fatigue Strength, MPa 190
420
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Tensile Strength: Ultimate (UTS), MPa 550
660
Tensile Strength: Yield (Proof), MPa 220
590

Thermal Properties

Latent Heat of Fusion, J/g 300
260
Maximum Temperature: Mechanical, °C 1040
430
Melting Completion (Liquidus), °C 1410
1450
Melting Onset (Solidus), °C 1370
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 16
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 18
8.0
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.3
2.3
Embodied Energy, MJ/kg 48
31
Embodied Water, L/kg 160
65

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
140
Resilience: Unit (Modulus of Resilience), kJ/m3 120
920
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 20
23
Strength to Weight: Bending, points 19
21
Thermal Shock Resistance, points 12
20

Alloy Composition

Carbon (C), % 0 to 0.12
0 to 0.13
Chromium (Cr), % 20 to 23
0 to 0.5
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 60.3 to 70
87.4 to 91.5
Manganese (Mn), % 0 to 1.5
0 to 0.9
Molybdenum (Mo), % 0
0 to 0.2
Nickel (Ni), % 10 to 13
8.5 to 10
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 2.0
0 to 0.45
Sulfur (S), % 0 to 0.040
0 to 0.045
Vanadium (V), % 0
0 to 0.030