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SAE-AISI P2 Steel vs. ACI-ASTM CA6N Steel

Both SAE-AISI P2 steel and ACI-ASTM CA6N steel are iron alloys. They have 83% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI P2 steel and the bottom bar is ACI-ASTM CA6N steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
75
Tensile Strength: Ultimate (UTS), MPa 330 to 1980
1080

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 46
23
Thermal Expansion, µm/m-K 12
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 2.7
11
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.5
2.5
Embodied Energy, MJ/kg 20
35
Embodied Water, L/kg 51
110

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 12 to 70
38
Strength to Weight: Bending, points 14 to 45
30
Thermal Diffusivity, mm2/s 12
6.1
Thermal Shock Resistance, points 11 to 65
40

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.060
Chromium (Cr), % 0.75 to 1.3
10.5 to 12.5
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 96.6 to 98.8
77.9 to 83.5
Manganese (Mn), % 0.1 to 0.4
0 to 0.5
Molybdenum (Mo), % 0.15 to 0.4
0
Nickel (Ni), % 0.1 to 0.5
6.0 to 8.0
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0.1 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.020