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ACI-ASTM CE30 Steel vs. SAE-AISI P20 Steel

Both ACI-ASTM CE30 steel and SAE-AISI P20 steel are iron alloys. They have 63% 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 CE30 steel and the bottom bar is SAE-AISI P20 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
73
Tensile Strength: Ultimate (UTS), MPa 630
540 to 1050

Thermal Properties

Latent Heat of Fusion, J/g 310
260
Melting Completion (Liquidus), °C 1410
1460
Melting Onset (Solidus), °C 1360
1420
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 14
45
Thermal Expansion, µm/m-K 17
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 19
2.8
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.4
1.6
Embodied Energy, MJ/kg 49
21
Embodied Water, L/kg 180
52

Common Calculations

PREN (Pitting Resistance) 28
2.6
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 23
19 to 37
Strength to Weight: Bending, points 21
19 to 29
Thermal Diffusivity, mm2/s 3.6
12
Thermal Shock Resistance, points 13
18 to 35

Alloy Composition

Carbon (C), % 0 to 0.3
0.28 to 0.4
Chromium (Cr), % 26 to 30
0.4 to 2.0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 55.1 to 66
95.2 to 98.5
Manganese (Mn), % 0 to 1.5
0.35 to 0.71
Molybdenum (Mo), % 0
0.3 to 0.55
Nickel (Ni), % 8.0 to 11
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 2.0
0.2 to 0.8
Sulfur (S), % 0 to 0.040
0 to 0.030