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ACI-ASTM CB7Cu-1 Steel vs. Grade CW12MW Nickel

ACI-ASTM CB7Cu-1 steel belongs to the iron alloys classification, while grade CW12MW nickel belongs to the nickel alloys. They have a modest 28% 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 CB7Cu-1 steel and the bottom bar is grade CW12MW nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
220
Elongation at Break, % 5.7 to 11
4.6
Fatigue Strength, MPa 420 to 590
130
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
85
Tensile Strength: Ultimate (UTS), MPa 960 to 1350
560
Tensile Strength: Yield (Proof), MPa 760 to 1180
310

Thermal Properties

Latent Heat of Fusion, J/g 280
320
Melting Completion (Liquidus), °C 1430
1610
Melting Onset (Solidus), °C 1500
1560
Specific Heat Capacity, J/kg-K 480
410
Thermal Expansion, µm/m-K 11
12

Otherwise Unclassified Properties

Base Metal Price, % relative 13
70
Density, g/cm3 7.8
9.1
Embodied Carbon, kg CO2/kg material 2.6
13
Embodied Energy, MJ/kg 38
180
Embodied Water, L/kg 130
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 120
22
Resilience: Unit (Modulus of Resilience), kJ/m3 1500 to 3590
220
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 34 to 48
17
Strength to Weight: Bending, points 28 to 35
17
Thermal Shock Resistance, points 32 to 45
16

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.12
Chromium (Cr), % 15.5 to 17.7
15.5 to 17.5
Copper (Cu), % 2.5 to 3.2
0
Iron (Fe), % 72.3 to 78.4
4.5 to 7.5
Manganese (Mn), % 0 to 0.7
0 to 1.0
Molybdenum (Mo), % 0
16 to 18
Nickel (Ni), % 3.6 to 4.6
49.2 to 60.1
Niobium (Nb), % 0 to 0.35
0
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
3.8 to 5.3
Vanadium (V), % 0
0.2 to 0.4