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ACI-ASTM CA40 Steel vs. SAE-AISI M36 Steel

Both ACI-ASTM CA40 steel and SAE-AISI M36 steel are iron alloys. They have 78% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (10, 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 M36 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 910
810 to 2190

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Melting Completion (Liquidus), °C 1440
1600
Melting Onset (Solidus), °C 1500
1550
Specific Heat Capacity, J/kg-K 480
440
Thermal Conductivity, W/m-K 25
19
Thermal Expansion, µm/m-K 10
12

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
38
Density, g/cm3 7.7
8.4
Embodied Carbon, kg CO2/kg material 2.0
9.5
Embodied Energy, MJ/kg 28
140
Embodied Water, L/kg 100
140

Common Calculations

PREN (Pitting Resistance) 14
31
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 33
27 to 72
Strength to Weight: Bending, points 27
23 to 44
Thermal Diffusivity, mm2/s 6.7
5.1
Thermal Shock Resistance, points 33
25 to 68

Alloy Composition

Carbon (C), % 0.2 to 0.4
0.8 to 0.9
Chromium (Cr), % 11.5 to 14
3.8 to 4.5
Cobalt (Co), % 0
7.8 to 8.8
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 81.5 to 88.3
70.1 to 75.5
Manganese (Mn), % 0 to 1.0
0.15 to 0.4
Molybdenum (Mo), % 0 to 0.5
4.6 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
0.2 to 0.45
Sulfur (S), % 0 to 0.040
0 to 0.030
Tungsten (W), % 0
5.5 to 6.5
Vanadium (V), % 0
1.8 to 2.3