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ACI-ASTM CD6MN Steel vs. AWS ERNiFeCr-2

ACI-ASTM CD6MN steel belongs to the iron alloys classification, while AWS ERNiFeCr-2 belongs to the nickel alloys. They have 45% of their average alloy composition in common. There are 24 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 CD6MN steel and the bottom bar is AWS ERNiFeCr-2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 28
28
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 80
75
Tensile Strength: Ultimate (UTS), MPa 730
1300

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1390
1410
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 16
12
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
1.5

Otherwise Unclassified Properties

Base Metal Price, % relative 17
75
Density, g/cm3 7.7
8.3
Embodied Carbon, kg CO2/kg material 3.4
13
Embodied Energy, MJ/kg 48
190
Embodied Water, L/kg 170
250

Common Calculations

Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 26
43
Strength to Weight: Bending, points 23
32
Thermal Diffusivity, mm2/s 4.4
3.2
Thermal Shock Resistance, points 20
38

Alloy Composition

Aluminum (Al), % 0
0.2 to 0.8
Boron (B), % 0
0 to 0.0030
Carbon (C), % 0 to 0.060
0 to 0.080
Chromium (Cr), % 24 to 27
17 to 21
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 62.1 to 70.1
11.6 to 24.6
Manganese (Mn), % 0 to 1.0
0 to 0.35
Molybdenum (Mo), % 1.8 to 2.5
2.8 to 3.3
Nickel (Ni), % 4.0 to 6.0
50 to 55
Niobium (Nb), % 0
4.8 to 5.5
Nitrogen (N), % 0.15 to 0.25
0
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 1.0
0 to 0.35
Sulfur (S), % 0 to 0.040
0 to 0.015
Titanium (Ti), % 0
0.65 to 1.2
Residuals, % 0
0 to 0.5