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ACI-ASTM CB7Cu-2 Steel vs. Nickel 693

ACI-ASTM CB7Cu-2 steel belongs to the iron alloys classification, while nickel 693 belongs to the nickel alloys. They have a modest 25% of their average alloy composition in common, which, by itself, doesn't mean much. There are 26 material properties with values for both materials. Properties with values for just one material (6, 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 693.

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
230
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
76
Tensile Strength: Ultimate (UTS), MPa 960 to 1350
660
Tensile Strength: Yield (Proof), MPa 760 to 1180
310

Thermal Properties

Latent Heat of Fusion, J/g 280
330
Melting Completion (Liquidus), °C 1430
1350
Melting Onset (Solidus), °C 1380
1310
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 17
9.1
Thermal Expansion, µm/m-K 11
13

Otherwise Unclassified Properties

Base Metal Price, % relative 13
60
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 2.6
9.9
Embodied Energy, MJ/kg 38
140
Embodied Water, L/kg 130
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 120
190
Resilience: Unit (Modulus of Resilience), kJ/m3 1510 to 3600
250
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 34 to 48
23
Strength to Weight: Bending, points 28 to 35
21
Thermal Diffusivity, mm2/s 4.6
2.3
Thermal Shock Resistance, points 32 to 45
19

Alloy Composition

Aluminum (Al), % 0
2.5 to 4.0
Carbon (C), % 0 to 0.070
0 to 0.15
Chromium (Cr), % 14 to 15.5
27 to 31
Copper (Cu), % 2.5 to 3.2
0 to 0.5
Iron (Fe), % 73.6 to 79
2.5 to 6.0
Manganese (Mn), % 0 to 0.7
0 to 1.0
Nickel (Ni), % 4.5 to 5.5
53.3 to 67.5
Niobium (Nb), % 0 to 0.35
0.5 to 2.5
Nitrogen (N), % 0 to 0.050
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
0 to 1.0