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ACI-ASTM CN7M Steel vs. Monel K-500

ACI-ASTM CN7M steel belongs to the iron alloys classification, while Monel K-500 belongs to the nickel alloys. They have a modest 35% 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 ACI-ASTM CN7M steel and the bottom bar is Monel K-500.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
160
Elongation at Break, % 44
25 to 36
Fatigue Strength, MPa 190
260 to 560
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 77
61
Tensile Strength: Ultimate (UTS), MPa 480
640 to 1100
Tensile Strength: Yield (Proof), MPa 200
310 to 880

Thermal Properties

Latent Heat of Fusion, J/g 310
270
Maximum Temperature: Mechanical, °C 1100
900
Melting Completion (Liquidus), °C 1410
1350
Melting Onset (Solidus), °C 1450
1320
Specific Heat Capacity, J/kg-K 470
440
Thermal Conductivity, W/m-K 21
18
Thermal Expansion, µm/m-K 15
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
3.1
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
3.2

Otherwise Unclassified Properties

Base Metal Price, % relative 32
50
Density, g/cm3 8.1
8.7
Embodied Carbon, kg CO2/kg material 5.6
8.1
Embodied Energy, MJ/kg 78
120
Embodied Water, L/kg 210
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
180 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 110
300 to 2420
Stiffness to Weight: Axial, points 14
10
Stiffness to Weight: Bending, points 24
21
Strength to Weight: Axial, points 17
21 to 35
Strength to Weight: Bending, points 17
19 to 27
Thermal Diffusivity, mm2/s 5.6
4.8
Thermal Shock Resistance, points 12
21 to 36

Alloy Composition

Aluminum (Al), % 0
2.3 to 3.2
Carbon (C), % 0 to 0.070
0 to 0.18
Chromium (Cr), % 19 to 22
0
Copper (Cu), % 3.0 to 4.0
27 to 33
Iron (Fe), % 37.4 to 48.5
0 to 2.0
Manganese (Mn), % 0 to 1.5
0 to 1.5
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 27.5 to 30.5
63 to 70.4
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.5
0 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.010
Titanium (Ti), % 0
0.35 to 0.85