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ACI-ASTM CA40 Steel vs. SAE-AISI M52 Steel

Both ACI-ASTM CA40 steel and SAE-AISI M52 steel are iron alloys. They have a moderately high 90% 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 CA40 steel and the bottom bar is SAE-AISI M52 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
75
Tensile Strength: Ultimate (UTS), MPa 910
710 to 2280

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Melting Completion (Liquidus), °C 1440
1510
Melting Onset (Solidus), °C 1500
1470
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 25
31
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
8.9
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
10

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
12
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.0
7.5
Embodied Energy, MJ/kg 28
110
Embodied Water, L/kg 100
89

Common Calculations

PREN (Pitting Resistance) 14
20
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 33
25 to 80
Strength to Weight: Bending, points 27
22 to 49
Thermal Diffusivity, mm2/s 6.7
8.4
Thermal Shock Resistance, points 33
21 to 67

Alloy Composition

Carbon (C), % 0.2 to 0.4
0.85 to 1.0
Chromium (Cr), % 11.5 to 14
3.5 to 4.3
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 81.5 to 88.3
84.4 to 88.9
Manganese (Mn), % 0 to 1.0
0.15 to 0.45
Molybdenum (Mo), % 0 to 0.5
4.0 to 4.9
Nickel (Ni), % 0 to 1.0
0 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.5
0.2 to 0.6
Sulfur (S), % 0 to 0.040
0 to 0.030
Tungsten (W), % 0
0.75 to 1.5
Vanadium (V), % 0
1.7 to 2.3