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Monel K-500 vs. ACI-ASTM CN3M Steel

Monel K-500 belongs to the nickel alloys classification, while ACI-ASTM CN3M steel belongs to the iron alloys. They have a modest 27% of their average alloy composition in common, which, by itself, doesn't mean much. There are 29 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 Monel K-500 and the bottom bar is ACI-ASTM CN3M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
200
Elongation at Break, % 25 to 36
34
Fatigue Strength, MPa 260 to 560
150
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 61
80
Tensile Strength: Ultimate (UTS), MPa 640 to 1100
500
Tensile Strength: Yield (Proof), MPa 310 to 880
190

Thermal Properties

Latent Heat of Fusion, J/g 270
310
Maximum Temperature: Mechanical, °C 900
1100
Melting Completion (Liquidus), °C 1350
1450
Melting Onset (Solidus), °C 1320
1400
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 18
13
Thermal Expansion, µm/m-K 14
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.1
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 50
31
Density, g/cm3 8.7
8.1
Embodied Carbon, kg CO2/kg material 8.1
5.9
Embodied Energy, MJ/kg 120
80
Embodied Water, L/kg 280
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180 to 260
130
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 2420
89
Stiffness to Weight: Axial, points 10
14
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 21 to 35
17
Strength to Weight: Bending, points 19 to 27
17
Thermal Diffusivity, mm2/s 4.8
3.4
Thermal Shock Resistance, points 21 to 36
11

Alloy Composition

Aluminum (Al), % 2.3 to 3.2
0
Carbon (C), % 0 to 0.18
0 to 0.030
Chromium (Cr), % 0
20 to 22
Copper (Cu), % 27 to 33
0
Iron (Fe), % 0 to 2.0
42.4 to 52.5
Manganese (Mn), % 0 to 1.5
0 to 2.0
Molybdenum (Mo), % 0
4.5 to 5.5
Nickel (Ni), % 63 to 70.4
23 to 27
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 0.35 to 0.85
0