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Monel K-500 vs. SAE-AISI 4320 Steel

Monel K-500 belongs to the nickel alloys classification, while SAE-AISI 4320 steel belongs to the iron alloys. There are 30 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 Monel K-500 and the bottom bar is SAE-AISI 4320 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
190
Elongation at Break, % 25 to 36
21 to 29
Fatigue Strength, MPa 260 to 560
320
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 61
73
Shear Strength, MPa 430 to 700
370 to 500
Tensile Strength: Ultimate (UTS), MPa 640 to 1100
570 to 790
Tensile Strength: Yield (Proof), MPa 310 to 880
430 to 460

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 900
420
Melting Completion (Liquidus), °C 1350
1460
Melting Onset (Solidus), °C 1320
1420
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 18
46
Thermal Expansion, µm/m-K 14
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.1
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 50
3.4
Density, g/cm3 8.7
7.9
Embodied Carbon, kg CO2/kg material 8.1
1.7
Embodied Energy, MJ/kg 120
22
Embodied Water, L/kg 280
52

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180 to 260
140 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 2420
480 to 560
Stiffness to Weight: Axial, points 10
13
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 21 to 35
20 to 28
Strength to Weight: Bending, points 19 to 27
19 to 24
Thermal Diffusivity, mm2/s 4.8
13
Thermal Shock Resistance, points 21 to 36
19 to 27

Alloy Composition

Aluminum (Al), % 2.3 to 3.2
0
Carbon (C), % 0 to 0.18
0.17 to 0.22
Chromium (Cr), % 0
0.4 to 0.6
Copper (Cu), % 27 to 33
0
Iron (Fe), % 0 to 2.0
95.8 to 97
Manganese (Mn), % 0 to 1.5
0.45 to 0.65
Molybdenum (Mo), % 0
0.2 to 0.3
Nickel (Ni), % 63 to 70.4
1.7 to 2.0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.5
0.15 to 0.35
Sulfur (S), % 0 to 0.010
0 to 0.040
Titanium (Ti), % 0.35 to 0.85
0

Comparable Variants