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ACI-ASTM CF16Fa Steel vs. SAE-AISI A2 Steel

Both ACI-ASTM CF16Fa steel and SAE-AISI A2 steel are iron alloys. They have 74% 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 CF16Fa steel and the bottom bar is SAE-AISI A2 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
74
Tensile Strength: Ultimate (UTS), MPa 540
710 to 2040

Thermal Properties

Latent Heat of Fusion, J/g 300
260
Melting Completion (Liquidus), °C 1420
1450
Melting Onset (Solidus), °C 1370
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
38
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
8.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
9.5

Otherwise Unclassified Properties

Base Metal Price, % relative 17
5.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.3
2.7
Embodied Energy, MJ/kg 47
38
Embodied Water, L/kg 150
73

Common Calculations

PREN (Pitting Resistance) 21
8.9
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19
25 to 73
Strength to Weight: Bending, points 19
23 to 46
Thermal Diffusivity, mm2/s 4.2
10
Thermal Shock Resistance, points 12
25 to 71

Alloy Composition

Carbon (C), % 0 to 0.16
1.0 to 1.1
Chromium (Cr), % 18 to 21
4.8 to 5.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 62.1 to 72.4
89.4 to 93.3
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 0.4 to 0.8
0.9 to 1.4
Nickel (Ni), % 9.0 to 12
0 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 2.0
0 to 0.5
Sulfur (S), % 0.2 to 0.4
0 to 0.030
Vanadium (V), % 0
0.15 to 0.5