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Monel R-405 vs. ACI-ASTM CB7Cu-2 Steel

Monel R-405 belongs to the nickel alloys classification, while ACI-ASTM CB7Cu-2 steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is Monel R-405 and the bottom bar is ACI-ASTM CB7Cu-2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
190
Elongation at Break, % 9.1 to 39
5.7 to 11
Fatigue Strength, MPa 210 to 250
420 to 590
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 62
75
Tensile Strength: Ultimate (UTS), MPa 540 to 630
960 to 1350
Tensile Strength: Yield (Proof), MPa 190 to 350
760 to 1180

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Melting Completion (Liquidus), °C 1350
1430
Melting Onset (Solidus), °C 1300
1380
Specific Heat Capacity, J/kg-K 430
480
Thermal Conductivity, W/m-K 23
17
Thermal Expansion, µm/m-K 14
11

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 50
13
Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 7.9
2.6
Embodied Energy, MJ/kg 110
38
Embodied Water, L/kg 250
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 49 to 170
71 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 120 to 370
1510 to 3600
Stiffness to Weight: Axial, points 10
14
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 17 to 20
34 to 48
Strength to Weight: Bending, points 17 to 18
28 to 35
Thermal Diffusivity, mm2/s 5.9
4.6
Thermal Shock Resistance, points 17 to 20
32 to 45

Alloy Composition

Carbon (C), % 0 to 0.3
0 to 0.070
Chromium (Cr), % 0
14 to 15.5
Copper (Cu), % 28 to 34
2.5 to 3.2
Iron (Fe), % 0 to 2.5
73.6 to 79
Manganese (Mn), % 0 to 2.0
0 to 0.7
Nickel (Ni), % 63 to 72
4.5 to 5.5
Niobium (Nb), % 0
0 to 0.35
Nitrogen (N), % 0
0 to 0.050
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0.025 to 0.060
0 to 0.030