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ACI-ASTM CE3MN Steel vs. AWS E309Nb

Both ACI-ASTM CE3MN steel and AWS E309Nb are iron alloys. They have a moderately high 92% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CE3MN steel and the bottom bar is AWS E309Nb.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 20
34
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 81
78
Tensile Strength: Ultimate (UTS), MPa 770
620

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Melting Completion (Liquidus), °C 1450
1420
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 13
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 21
25
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.2
4.4
Embodied Energy, MJ/kg 58
64
Embodied Water, L/kg 180
180

Common Calculations

PREN (Pitting Resistance) 43
25
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27
22
Strength to Weight: Bending, points 24
21
Thermal Diffusivity, mm2/s 4.1
4.0
Thermal Shock Resistance, points 21
16

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.12
Chromium (Cr), % 24 to 26
22 to 25
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 58.1 to 65.9
54.8 to 64.8
Manganese (Mn), % 0 to 1.5
0.5 to 2.5
Molybdenum (Mo), % 4.0 to 5.0
0 to 0.75
Nickel (Ni), % 6.0 to 8.0
12 to 14
Niobium (Nb), % 0
0.7 to 1.0
Nitrogen (N), % 0.1 to 0.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.030