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ACI-ASTM CA6NM Steel vs. SAE-AISI M33 Steel

Both ACI-ASTM CA6NM steel and SAE-AISI M33 steel are iron alloys. They have 79% 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 ACI-ASTM CA6NM steel and the bottom bar is SAE-AISI M33 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
78
Tensile Strength: Ultimate (UTS), MPa 850
810 to 2210

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Melting Completion (Liquidus), °C 1450
1550
Melting Onset (Solidus), °C 1400
1500
Specific Heat Capacity, J/kg-K 480
440
Thermal Conductivity, W/m-K 25
20
Thermal Expansion, µm/m-K 10
12

Otherwise Unclassified Properties

Base Metal Price, % relative 10
32
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 2.5
7.7
Embodied Energy, MJ/kg 34
110
Embodied Water, L/kg 110
150

Common Calculations

PREN (Pitting Resistance) 15
38
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 30
27 to 75
Strength to Weight: Bending, points 26
24 to 46
Thermal Diffusivity, mm2/s 6.7
5.5
Thermal Shock Resistance, points 31
25 to 68

Alloy Composition

Carbon (C), % 0 to 0.060
0.85 to 0.92
Chromium (Cr), % 11.5 to 14
3.5 to 4.0
Cobalt (Co), % 0
7.8 to 8.8
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 78.4 to 84.6
71.4 to 76.3
Manganese (Mn), % 0 to 1.0
0.15 to 0.4
Molybdenum (Mo), % 0.4 to 1.0
9.0 to 10
Nickel (Ni), % 3.5 to 4.5
0 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0.15 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
1.3 to 2.1
Vanadium (V), % 0
1.0 to 1.4