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ACI-ASTM CB7Cu-2 Steel vs. Grade M30C Nickel

ACI-ASTM CB7Cu-2 steel belongs to the iron alloys classification, while grade M30C nickel belongs to the nickel alloys. There are 28 material properties with values for both materials. Properties with values for just one material (3, 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 grade M30C nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
160
Elongation at Break, % 5.7 to 11
29
Fatigue Strength, MPa 420 to 590
170
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 75
61
Tensile Strength: Ultimate (UTS), MPa 960 to 1350
510
Tensile Strength: Yield (Proof), MPa 760 to 1180
250

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Melting Completion (Liquidus), °C 1430
1290
Melting Onset (Solidus), °C 1380
1240
Specific Heat Capacity, J/kg-K 480
430
Thermal Conductivity, W/m-K 17
22
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
3.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 13
60
Density, g/cm3 7.8
8.8
Embodied Carbon, kg CO2/kg material 2.6
9.5
Embodied Energy, MJ/kg 38
140
Embodied Water, L/kg 130
250

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 120
120
Resilience: Unit (Modulus of Resilience), kJ/m3 1510 to 3600
200
Stiffness to Weight: Axial, points 14
10
Stiffness to Weight: Bending, points 25
21
Strength to Weight: Axial, points 34 to 48
16
Strength to Weight: Bending, points 28 to 35
16
Thermal Diffusivity, mm2/s 4.6
5.7
Thermal Shock Resistance, points 32 to 45
18

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.3
Chromium (Cr), % 14 to 15.5
0
Copper (Cu), % 2.5 to 3.2
26 to 33
Iron (Fe), % 73.6 to 79
0 to 3.5
Manganese (Mn), % 0 to 0.7
0 to 1.5
Nickel (Ni), % 4.5 to 5.5
56.6 to 72
Niobium (Nb), % 0 to 0.35
1.0 to 3.0
Nitrogen (N), % 0 to 0.050
0
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0 to 1.0
1.0 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.030