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AWS E385 vs. ACI-ASTM CD6MN Steel

Both AWS E385 and ACI-ASTM CD6MN steel are iron alloys. They have 75% 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 E385 and the bottom bar is ACI-ASTM CD6MN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
28
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 79
80
Tensile Strength: Ultimate (UTS), MPa 580
730

Thermal Properties

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

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 31
17
Density, g/cm3 8.1
7.7
Embodied Carbon, kg CO2/kg material 5.8
3.4
Embodied Energy, MJ/kg 79
48
Embodied Water, L/kg 200
170

Common Calculations

PREN (Pitting Resistance) 36
36
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 20
26
Strength to Weight: Bending, points 19
23
Thermal Diffusivity, mm2/s 3.6
4.4
Thermal Shock Resistance, points 15
20

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.060
Chromium (Cr), % 19.5 to 21.5
24 to 27
Copper (Cu), % 1.2 to 2.0
0
Iron (Fe), % 41.8 to 50.1
62.1 to 70.1
Manganese (Mn), % 1.0 to 2.5
0 to 1.0
Molybdenum (Mo), % 4.2 to 5.2
1.8 to 2.5
Nickel (Ni), % 24 to 26
4.0 to 6.0
Nitrogen (N), % 0
0.15 to 0.25
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.9
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.040