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ACI-ASTM CB6 Steel vs. AWS ERNiCrCoMo-1

ACI-ASTM CB6 steel belongs to the iron alloys classification, while AWS ERNiCrCoMo-1 belongs to the nickel alloys. They have a modest 24% of their average alloy composition in common, which, by itself, doesn't mean much. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CB6 steel and the bottom bar is AWS ERNiCrCoMo-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 18
28
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
81
Tensile Strength: Ultimate (UTS), MPa 880
710

Thermal Properties

Latent Heat of Fusion, J/g 280
330
Melting Completion (Liquidus), °C 1440
1420
Melting Onset (Solidus), °C 1390
1370
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 17
13
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
1.5

Otherwise Unclassified Properties

Base Metal Price, % relative 12
75
Density, g/cm3 7.8
8.5
Embodied Carbon, kg CO2/kg material 2.5
10
Embodied Energy, MJ/kg 36
140
Embodied Water, L/kg 130
350

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 32
23
Strength to Weight: Bending, points 26
21
Thermal Diffusivity, mm2/s 4.6
3.5
Thermal Shock Resistance, points 31
19

Alloy Composition

Aluminum (Al), % 0
0.8 to 1.5
Carbon (C), % 0 to 0.060
0.050 to 0.15
Chromium (Cr), % 15.5 to 17.5
20 to 24
Cobalt (Co), % 0
10 to 15
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 74.4 to 81
0 to 3.0
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
8.0 to 10
Nickel (Ni), % 3.5 to 5.5
42.7 to 61.2
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 0.015
Titanium (Ti), % 0
0 to 0.6
Residuals, % 0
0 to 0.5