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ACI-ASTM CB7Cu-2 Steel vs. N08221 Nickel

ACI-ASTM CB7Cu-2 steel belongs to the iron alloys classification, while N08221 nickel belongs to the nickel alloys. They have 50% of their average alloy composition in common. There are 25 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 CB7Cu-2 steel and the bottom bar is N08221 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 5.7 to 11
34
Fatigue Strength, MPa 420 to 590
190
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
79
Tensile Strength: Ultimate (UTS), MPa 960 to 1350
610
Tensile Strength: Yield (Proof), MPa 760 to 1180
270

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Melting Completion (Liquidus), °C 1430
1440
Melting Onset (Solidus), °C 1380
1390
Specific Heat Capacity, J/kg-K 480
460
Thermal Expansion, µm/m-K 11
13

Otherwise Unclassified Properties

Base Metal Price, % relative 13
44
Density, g/cm3 7.8
8.3
Embodied Carbon, kg CO2/kg material 2.6
7.9
Embodied Energy, MJ/kg 38
110
Embodied Water, L/kg 130
240

Common Calculations

PREN (Pitting Resistance) 15
40
Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 120
170
Resilience: Unit (Modulus of Resilience), kJ/m3 1510 to 3600
170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 34 to 48
21
Strength to Weight: Bending, points 28 to 35
19
Thermal Shock Resistance, points 32 to 45
16

Alloy Composition

Aluminum (Al), % 0
0 to 0.2
Carbon (C), % 0 to 0.070
0 to 0.025
Chromium (Cr), % 14 to 15.5
20 to 22
Copper (Cu), % 2.5 to 3.2
1.5 to 3.0
Iron (Fe), % 73.6 to 79
22 to 33.9
Manganese (Mn), % 0 to 0.7
0 to 1.0
Molybdenum (Mo), % 0
5.0 to 6.5
Nickel (Ni), % 4.5 to 5.5
39 to 46
Niobium (Nb), % 0 to 0.35
0
Nitrogen (N), % 0 to 0.050
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 1.0
0 to 0.050
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0
0.6 to 1.0