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ACI-ASTM CN3MN Steel vs. AWS E2553

Both ACI-ASTM CN3MN steel and AWS E2553 are iron alloys. They have 80% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (7, 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 E2553.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 39
17
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 80
80
Tensile Strength: Ultimate (UTS), MPa 620
850

Thermal Properties

Latent Heat of Fusion, J/g 310
300
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1410
1390
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 13
16
Thermal Expansion, µm/m-K 16
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.8
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 33
21
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 6.2
4.0
Embodied Energy, MJ/kg 84
56
Embodied Water, L/kg 200
190

Common Calculations

PREN (Pitting Resistance) 46
40
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 21
30
Strength to Weight: Bending, points 20
26
Thermal Diffusivity, mm2/s 3.4
4.3
Thermal Shock Resistance, points 14
21

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.060
Chromium (Cr), % 20 to 22
24 to 27
Copper (Cu), % 0 to 0.75
1.5 to 2.5
Iron (Fe), % 41.4 to 50.3
55.2 to 64.5
Manganese (Mn), % 0 to 2.0
0.5 to 1.5
Molybdenum (Mo), % 6.0 to 7.0
2.9 to 3.9
Nickel (Ni), % 23.5 to 25.5
6.5 to 8.5
Nitrogen (N), % 0.18 to 0.26
0.1 to 0.25
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030