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ACI-ASTM CA40F Steel vs. SAE-AISI M48 Steel

Both ACI-ASTM CA40F steel and SAE-AISI M48 steel are iron alloys. They have 72% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CA40F steel and the bottom bar is SAE-AISI M48 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
78
Tensile Strength: Ultimate (UTS), MPa 770
890 to 2390

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Melting Completion (Liquidus), °C 1430
1670
Melting Onset (Solidus), °C 1390
1620
Specific Heat Capacity, J/kg-K 480
420
Thermal Expansion, µm/m-K 10
12

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
48
Density, g/cm3 7.7
8.7
Embodied Carbon, kg CO2/kg material 2.0
13
Embodied Energy, MJ/kg 28
190
Embodied Water, L/kg 100
160

Common Calculations

PREN (Pitting Resistance) 14
37
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 28
28 to 76
Strength to Weight: Bending, points 24
23 to 45
Thermal Shock Resistance, points 28
26 to 71

Alloy Composition

Carbon (C), % 0.2 to 0.4
1.4 to 1.5
Chromium (Cr), % 11.5 to 14
3.5 to 4.0
Cobalt (Co), % 0
8.0 to 10
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 81.6 to 88.3
63.8 to 69.8
Manganese (Mn), % 0 to 1.0
0.15 to 0.4
Molybdenum (Mo), % 0 to 0.5
4.8 to 5.5
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
0.15 to 0.4
Sulfur (S), % 0.2 to 0.4
0 to 0.030
Tungsten (W), % 0
9.5 to 10.5
Vanadium (V), % 0
2.8 to 3.3