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Monel 400 vs. EN 1.4618 Stainless Steel

Monel 400 belongs to the nickel alloys classification, while EN 1.4618 stainless steel belongs to the iron alloys. 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 1.4618 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
200
Elongation at Break, % 20 to 40
51
Fatigue Strength, MPa 230 to 290
240 to 250
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 62
77
Shear Strength, MPa 370 to 490
480 to 500
Tensile Strength: Ultimate (UTS), MPa 540 to 780
680 to 700
Tensile Strength: Yield (Proof), MPa 210 to 590
250 to 260

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Maximum Temperature: Mechanical, °C 1000
900
Melting Completion (Liquidus), °C 1350
1400
Melting Onset (Solidus), °C 1300
1360
Specific Heat Capacity, J/kg-K 430
480
Thermal Conductivity, W/m-K 23
15
Thermal Expansion, µm/m-K 14
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.3
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 50
13
Density, g/cm3 8.9
7.7
Embodied Carbon, kg CO2/kg material 7.9
2.7
Embodied Energy, MJ/kg 110
39
Embodied Water, L/kg 250
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 180
270 to 280
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 1080
160 to 170
Stiffness to Weight: Axial, points 10
14
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 17 to 25
24 to 25
Strength to Weight: Bending, points 17 to 21
22 to 23
Thermal Diffusivity, mm2/s 6.1
4.0
Thermal Shock Resistance, points 17 to 25
15 to 16

Alloy Composition

Carbon (C), % 0 to 0.3
0 to 0.1
Chromium (Cr), % 0
16.5 to 18.5
Copper (Cu), % 28 to 34
1.0 to 2.5
Iron (Fe), % 0 to 2.5
62.7 to 72.5
Manganese (Mn), % 0 to 2.0
5.5 to 9.5
Nickel (Ni), % 63 to 72
4.5 to 5.5
Nitrogen (N), % 0
0 to 0.15
Phosphorus (P), % 0
0 to 0.070
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.024
0 to 0.010

Comparable Variants