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AWS E307 vs. ACI-ASTM CD3MWCuN Steel

Both AWS E307 and ACI-ASTM CD3MWCuN steel are iron alloys. They have a moderately high 91% 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 AWS E307 and the bottom bar is ACI-ASTM CD3MWCuN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
29
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 78
80
Tensile Strength: Ultimate (UTS), MPa 660
790

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1370
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
16
Thermal Expansion, µm/m-K 14
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 17
22
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.5
4.2
Embodied Energy, MJ/kg 49
58
Embodied Water, L/kg 160
180

Common Calculations

PREN (Pitting Resistance) 23
42
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24
28
Strength to Weight: Bending, points 22
24
Thermal Diffusivity, mm2/s 4.1
4.2
Thermal Shock Resistance, points 17
22

Alloy Composition

Carbon (C), % 0.040 to 0.14
0 to 0.030
Chromium (Cr), % 18 to 21.5
24 to 26
Copper (Cu), % 0 to 0.75
0.5 to 1.0
Iron (Fe), % 59.6 to 69.2
56.6 to 65.3
Manganese (Mn), % 3.3 to 4.8
0 to 1.5
Molybdenum (Mo), % 0.5 to 1.5
3.0 to 4.0
Nickel (Ni), % 9.0 to 10.7
6.5 to 8.5
Nitrogen (N), % 0
0.2 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.025
Tungsten (W), % 0
0.5 to 1.0