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ACI-ASTM CN3M Steel vs. AWS ERNiCrMo-10

ACI-ASTM CN3M steel belongs to the iron alloys classification, while AWS ERNiCrMo-10 belongs to the nickel alloys. They have 55% 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 CN3M steel and the bottom bar is AWS ERNiCrMo-10.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
220
Elongation at Break, % 34
28
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 80
84
Tensile Strength: Ultimate (UTS), MPa 500
790

Thermal Properties

Latent Heat of Fusion, J/g 310
320
Melting Completion (Liquidus), °C 1450
1550
Melting Onset (Solidus), °C 1400
1490
Specific Heat Capacity, J/kg-K 470
420
Thermal Conductivity, W/m-K 13
10
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
1.5

Otherwise Unclassified Properties

Base Metal Price, % relative 31
70
Density, g/cm3 8.1
8.9
Embodied Carbon, kg CO2/kg material 5.9
12
Embodied Energy, MJ/kg 80
160
Embodied Water, L/kg 200
300

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 17
25
Strength to Weight: Bending, points 17
21
Thermal Diffusivity, mm2/s 3.4
2.7
Thermal Shock Resistance, points 11
21

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.015
Chromium (Cr), % 20 to 22
20 to 22.5
Cobalt (Co), % 0
0 to 2.5
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 42.4 to 52.5
2.0 to 6.0
Manganese (Mn), % 0 to 2.0
0 to 0.5
Molybdenum (Mo), % 4.5 to 5.5
12.5 to 14.5
Nickel (Ni), % 23 to 27
49 to 63
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.080
Sulfur (S), % 0 to 0.030
0 to 0.010
Tungsten (W), % 0
2.5 to 3.5
Vanadium (V), % 0
0 to 0.35
Residuals, % 0
0 to 0.5