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ACI-ASTM CD4MCuN Steel vs. AWS E308L

Both ACI-ASTM CD4MCuN steel and AWS E308L are iron alloys. They have 90% 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 CD4MCuN steel and the bottom bar is AWS E308L.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 18
40
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
78
Tensile Strength: Ultimate (UTS), MPa 770
580

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Melting Completion (Liquidus), °C 1420
1420
Melting Onset (Solidus), °C 1380
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 17
16
Thermal Expansion, µm/m-K 13
14

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 18
16
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.5
3.2
Embodied Energy, MJ/kg 49
46
Embodied Water, L/kg 180
150

Common Calculations

PREN (Pitting Resistance) 35
21
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
21
Strength to Weight: Bending, points 24
20
Thermal Diffusivity, mm2/s 4.5
4.1
Thermal Shock Resistance, points 21
15

Alloy Composition

Carbon (C), % 0 to 0.040
0 to 0.040
Chromium (Cr), % 24.5 to 26.5
18 to 21
Copper (Cu), % 2.7 to 3.3
0 to 0.75
Iron (Fe), % 59.5 to 66.3
62.9 to 72.5
Manganese (Mn), % 0 to 1.0
0.5 to 2.5
Molybdenum (Mo), % 1.7 to 2.3
0 to 0.75
Nickel (Ni), % 4.7 to 6.0
9.0 to 11
Nitrogen (N), % 0.1 to 0.25
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