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Monel K-500 vs. EN 1.4659 Stainless Steel

Monel K-500 belongs to the nickel alloys classification, while EN 1.4659 stainless steel belongs to the iron alloys. They have a modest 26% of their average alloy composition in common, which, by itself, doesn't mean much. There are 30 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 EN 1.4659 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
210
Elongation at Break, % 25 to 36
49
Fatigue Strength, MPa 260 to 560
460
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 61
81
Shear Strength, MPa 430 to 700
640
Tensile Strength: Ultimate (UTS), MPa 640 to 1100
900
Tensile Strength: Yield (Proof), MPa 310 to 880
480

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Maximum Temperature: Mechanical, °C 900
1100
Melting Completion (Liquidus), °C 1350
1480
Melting Onset (Solidus), °C 1320
1430
Specific Heat Capacity, J/kg-K 440
460
Thermal Conductivity, W/m-K 18
12
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
37
Density, g/cm3 8.7
8.2
Embodied Carbon, kg CO2/kg material 8.1
6.5
Embodied Energy, MJ/kg 120
89
Embodied Water, L/kg 280
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180 to 260
370
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 2420
550
Stiffness to Weight: Axial, points 10
14
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 21 to 35
31
Strength to Weight: Bending, points 19 to 27
25
Thermal Diffusivity, mm2/s 4.8
3.2
Thermal Shock Resistance, points 21 to 36
19

Alloy Composition

Aluminum (Al), % 2.3 to 3.2
0
Carbon (C), % 0 to 0.18
0 to 0.020
Chromium (Cr), % 0
23 to 25
Copper (Cu), % 27 to 33
1.0 to 2.0
Iron (Fe), % 0 to 2.0
35.7 to 45.7
Manganese (Mn), % 0 to 1.5
2.0 to 4.0
Molybdenum (Mo), % 0
5.5 to 6.5
Nickel (Ni), % 63 to 70.4
21 to 23
Nitrogen (N), % 0
0.35 to 0.5
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 0.7
Sulfur (S), % 0 to 0.010
0 to 0.010
Titanium (Ti), % 0.35 to 0.85
0
Tungsten (W), % 0
1.5 to 2.5