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Monel 400 vs. EN 1.4547 Stainless Steel

Monel 400 belongs to the nickel alloys classification, while EN 1.4547 stainless steel belongs to the iron alloys. They have a modest 21% 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 400 and the bottom bar is EN 1.4547 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
200
Elongation at Break, % 20 to 40
39
Fatigue Strength, MPa 230 to 290
290
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 62
80
Shear Strength, MPa 370 to 490
510
Tensile Strength: Ultimate (UTS), MPa 540 to 780
750
Tensile Strength: Yield (Proof), MPa 210 to 590
340

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Maximum Temperature: Mechanical, °C 1000
1090
Melting Completion (Liquidus), °C 1350
1470
Melting Onset (Solidus), °C 1300
1420
Specific Heat Capacity, J/kg-K 430
460
Thermal Conductivity, W/m-K 23
14
Thermal Expansion, µm/m-K 14
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.3
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 50
28
Density, g/cm3 8.9
8.0
Embodied Carbon, kg CO2/kg material 7.9
5.6
Embodied Energy, MJ/kg 110
75
Embodied Water, L/kg 250
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 180
240
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 1080
290
Stiffness to Weight: Axial, points 10
14
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 17 to 25
26
Strength to Weight: Bending, points 17 to 21
23
Thermal Diffusivity, mm2/s 6.1
3.8
Thermal Shock Resistance, points 17 to 25
16

Alloy Composition

Carbon (C), % 0 to 0.3
0 to 0.020
Chromium (Cr), % 0
19.5 to 20.5
Copper (Cu), % 28 to 34
0.5 to 1.0
Iron (Fe), % 0 to 2.5
51 to 56.3
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0
6.0 to 7.0
Nickel (Ni), % 63 to 72
17.5 to 18.5
Nitrogen (N), % 0
0.18 to 0.25
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 0.7
Sulfur (S), % 0 to 0.024
0 to 0.010