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ASTM Grade LC3 Steel vs. ACI-ASTM CG12 Steel

Both ASTM grade LC3 steel and ACI-ASTM CG12 steel are iron alloys. They have 70% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ASTM grade LC3 steel and the bottom bar is ACI-ASTM CG12 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
160
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 27
40
Fatigue Strength, MPa 230
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
78
Tensile Strength: Ultimate (UTS), MPa 570
550
Tensile Strength: Yield (Proof), MPa 310
220

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 410
1040
Melting Completion (Liquidus), °C 1460
1410
Melting Onset (Solidus), °C 1420
1370
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 52
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 4.0
18
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.7
3.3
Embodied Energy, MJ/kg 23
48
Embodied Water, L/kg 52
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
180
Resilience: Unit (Modulus of Resilience), kJ/m3 260
120
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 20
20
Strength to Weight: Bending, points 19
19
Thermal Diffusivity, mm2/s 14
4.0
Thermal Shock Resistance, points 17
12

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.12
Chromium (Cr), % 0
20 to 23
Iron (Fe), % 94.4 to 96.5
60.3 to 70
Manganese (Mn), % 0.5 to 0.8
0 to 1.5
Nickel (Ni), % 3.0 to 4.0
10 to 13
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.6
0 to 2.0
Sulfur (S), % 0 to 0.045
0 to 0.040