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Monel K-500 vs. EN 1.4729 Stainless Steel

Monel K-500 belongs to the nickel alloys classification, while EN 1.4729 stainless steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is Monel K-500 and the bottom bar is EN 1.4729 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
190
Elongation at Break, % 25 to 36
15
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 61
75

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Maximum Temperature: Mechanical, °C 900
850
Melting Completion (Liquidus), °C 1350
1420
Melting Onset (Solidus), °C 1320
1380
Specific Heat Capacity, J/kg-K 440
490
Thermal Conductivity, W/m-K 18
24
Thermal Expansion, µm/m-K 14
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.1
2.8
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 50
7.5
Density, g/cm3 8.7
7.6
Embodied Carbon, kg CO2/kg material 8.1
2.1
Embodied Energy, MJ/kg 120
29
Embodied Water, L/kg 280
100

Common Calculations

Stiffness to Weight: Axial, points 10
14
Stiffness to Weight: Bending, points 21
25
Thermal Diffusivity, mm2/s 4.8
6.5

Alloy Composition

Aluminum (Al), % 2.3 to 3.2
0
Carbon (C), % 0 to 0.18
0.3 to 0.5
Chromium (Cr), % 0
12 to 14
Copper (Cu), % 27 to 33
0
Iron (Fe), % 0 to 2.0
80.4 to 86.7
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 63 to 70.4
0 to 1.0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.5
1.0 to 2.5
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 0.35 to 0.85
0