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ACI-ASTM CB6 Steel vs. SAE-AISI A3 Steel

Both ACI-ASTM CB6 steel and SAE-AISI A3 steel are iron alloys. They have 84% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CB6 steel and the bottom bar is SAE-AISI A3 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 880
700 to 2150

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1390
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 17
37
Thermal Expansion, µm/m-K 10
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
8.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
9.7

Otherwise Unclassified Properties

Base Metal Price, % relative 12
6.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.5
4.4
Embodied Energy, MJ/kg 36
67
Embodied Water, L/kg 130
78

Common Calculations

PREN (Pitting Resistance) 17
8.9
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 32
25 to 77
Strength to Weight: Bending, points 26
23 to 48
Thermal Diffusivity, mm2/s 4.6
10
Thermal Shock Resistance, points 31
23 to 70

Alloy Composition

Carbon (C), % 0 to 0.060
1.2 to 1.3
Chromium (Cr), % 15.5 to 17.5
4.8 to 5.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 74.4 to 81
88.7 to 92
Manganese (Mn), % 0 to 1.0
0.4 to 0.6
Molybdenum (Mo), % 0 to 0.5
0.9 to 1.4
Nickel (Ni), % 3.5 to 5.5
0 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0
0.8 to 1.4