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SAE-AISI M44 Steel vs. ACI-ASTM CA6NM Steel

Both SAE-AISI M44 steel and ACI-ASTM CA6NM steel are iron alloys. They have 74% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M44 steel and the bottom bar is ACI-ASTM CA6NM steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 78
76
Tensile Strength: Ultimate (UTS), MPa 870 to 2290
850

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Melting Completion (Liquidus), °C 1590
1450
Melting Onset (Solidus), °C 1540
1400
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 14
25
Thermal Expansion, µm/m-K 12
10

Otherwise Unclassified Properties

Base Metal Price, % relative 43
10
Density, g/cm3 8.4
7.8
Embodied Carbon, kg CO2/kg material 9.9
2.5
Embodied Energy, MJ/kg 150
34
Embodied Water, L/kg 170
110

Common Calculations

PREN (Pitting Resistance) 35
15
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 28 to 75
30
Strength to Weight: Bending, points 24 to 46
26
Thermal Diffusivity, mm2/s 3.7
6.7
Thermal Shock Resistance, points 27 to 70
31

Alloy Composition

Carbon (C), % 1.1 to 1.2
0 to 0.060
Chromium (Cr), % 4.0 to 4.8
11.5 to 14
Cobalt (Co), % 11 to 12.3
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 65.3 to 70.6
78.4 to 84.6
Manganese (Mn), % 0.2 to 0.4
0 to 1.0
Molybdenum (Mo), % 6.0 to 7.0
0.4 to 1.0
Nickel (Ni), % 0 to 0.3
3.5 to 4.5
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.3 to 0.55
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 5.0 to 5.8
0
Vanadium (V), % 1.9 to 2.2
0