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ACI-ASTM CB7Cu-2 Steel vs. N06985 Nickel

ACI-ASTM CB7Cu-2 steel belongs to the iron alloys classification, while N06985 nickel belongs to the nickel alloys. They have 42% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CB7Cu-2 steel and the bottom bar is N06985 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 5.7 to 11
45
Fatigue Strength, MPa 420 to 590
220
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
80
Tensile Strength: Ultimate (UTS), MPa 960 to 1350
690
Tensile Strength: Yield (Proof), MPa 760 to 1180
260

Thermal Properties

Latent Heat of Fusion, J/g 280
320
Melting Completion (Liquidus), °C 1430
1350
Melting Onset (Solidus), °C 1380
1260
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 17
10
Thermal Expansion, µm/m-K 11
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 13
55
Density, g/cm3 7.8
8.4
Embodied Carbon, kg CO2/kg material 2.6
8.8
Embodied Energy, MJ/kg 38
120
Embodied Water, L/kg 130
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 120
250
Resilience: Unit (Modulus of Resilience), kJ/m3 1510 to 3600
160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 34 to 48
23
Strength to Weight: Bending, points 28 to 35
21
Thermal Diffusivity, mm2/s 4.6
2.6
Thermal Shock Resistance, points 32 to 45
16

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.015
Chromium (Cr), % 14 to 15.5
21 to 23.5
Cobalt (Co), % 0
0 to 5.0
Copper (Cu), % 2.5 to 3.2
1.5 to 2.5
Iron (Fe), % 73.6 to 79
18 to 21
Manganese (Mn), % 0 to 0.7
0 to 1.0
Molybdenum (Mo), % 0
6.0 to 8.0
Nickel (Ni), % 4.5 to 5.5
35.9 to 53.5
Niobium (Nb), % 0 to 0.35
0 to 0.5
Nitrogen (N), % 0 to 0.050
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
0 to 1.5