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ACI-ASTM CN3MN Steel vs. AWS E383

Both ACI-ASTM CN3MN steel and AWS E383 are iron alloys. They have 85% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CN3MN steel and the bottom bar is AWS E383.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
210
Elongation at Break, % 39
34
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 80
80
Tensile Strength: Ultimate (UTS), MPa 620
580

Thermal Properties

Latent Heat of Fusion, J/g 310
320
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1410
1370
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 13
12
Thermal Expansion, µm/m-K 16
14

Otherwise Unclassified Properties

Base Metal Price, % relative 33
37
Density, g/cm3 8.1
8.1
Embodied Carbon, kg CO2/kg material 6.2
6.4
Embodied Energy, MJ/kg 84
89
Embodied Water, L/kg 200
240

Common Calculations

PREN (Pitting Resistance) 46
40
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21
20
Strength to Weight: Bending, points 20
19
Thermal Diffusivity, mm2/s 3.4
3.1
Thermal Shock Resistance, points 14
15

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 20 to 22
26.5 to 29
Copper (Cu), % 0 to 0.75
0.6 to 1.5
Iron (Fe), % 41.4 to 50.3
28.8 to 39.2
Manganese (Mn), % 0 to 2.0
0.5 to 2.5
Molybdenum (Mo), % 6.0 to 7.0
3.2 to 4.2
Nickel (Ni), % 23.5 to 25.5
30 to 33
Nitrogen (N), % 0.18 to 0.26
0
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.9
Sulfur (S), % 0 to 0.010
0 to 0.020