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ACI-ASTM CB7Cu-2 Steel vs. Nickel 30

ACI-ASTM CB7Cu-2 steel belongs to the iron alloys classification, while nickel 30 belongs to the nickel alloys. They have a modest 37% of their average alloy composition in common, which, by itself, doesn't mean much. 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 nickel 30.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 5.7 to 11
34
Fatigue Strength, MPa 420 to 590
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
82
Tensile Strength: Ultimate (UTS), MPa 960 to 1350
660
Tensile Strength: Yield (Proof), MPa 760 to 1180
270

Thermal Properties

Latent Heat of Fusion, J/g 280
320
Melting Completion (Liquidus), °C 1430
1480
Melting Onset (Solidus), °C 1380
1430
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 17
10
Thermal Expansion, µm/m-K 11
13

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
60
Density, g/cm3 7.8
8.5
Embodied Carbon, kg CO2/kg material 2.6
9.4
Embodied Energy, MJ/kg 38
130
Embodied Water, L/kg 130
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 120
180
Resilience: Unit (Modulus of Resilience), kJ/m3 1510 to 3600
180
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 34 to 48
22
Strength to Weight: Bending, points 28 to 35
20
Thermal Diffusivity, mm2/s 4.6
2.7
Thermal Shock Resistance, points 32 to 45
18

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.030
Chromium (Cr), % 14 to 15.5
28 to 31.5
Cobalt (Co), % 0
0 to 5.0
Copper (Cu), % 2.5 to 3.2
1.0 to 2.4
Iron (Fe), % 73.6 to 79
13 to 17
Manganese (Mn), % 0 to 0.7
0 to 0.030
Molybdenum (Mo), % 0
4.0 to 6.0
Nickel (Ni), % 4.5 to 5.5
30.2 to 52.2
Niobium (Nb), % 0 to 0.35
0.3 to 1.5
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 0.8
Sulfur (S), % 0 to 0.030
0 to 0.020
Tungsten (W), % 0
1.5 to 4.0