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Monel 400 vs. EN 1.4959 Stainless Steel

Monel 400 belongs to the nickel alloys classification, while EN 1.4959 stainless steel belongs to the iron alloys. They have a modest 35% 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 (4, in this case) are not shown.

For each property being compared, the top bar is Monel 400 and the bottom bar is EN 1.4959 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
200
Elongation at Break, % 20 to 40
40
Fatigue Strength, MPa 230 to 290
170
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 62
77
Shear Strength, MPa 370 to 490
430
Tensile Strength: Ultimate (UTS), MPa 540 to 780
630
Tensile Strength: Yield (Proof), MPa 210 to 590
190

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Maximum Temperature: Mechanical, °C 1000
1090
Melting Completion (Liquidus), °C 1350
1400
Melting Onset (Solidus), °C 1300
1350
Specific Heat Capacity, J/kg-K 430
480
Thermal Conductivity, W/m-K 23
12
Thermal Expansion, µm/m-K 14
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.3
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 50
31
Density, g/cm3 8.9
8.0
Embodied Carbon, kg CO2/kg material 7.9
5.4
Embodied Energy, MJ/kg 110
76
Embodied Water, L/kg 250
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 180
190
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 1080
96
Stiffness to Weight: Axial, points 10
14
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 17 to 25
22
Strength to Weight: Bending, points 17 to 21
20
Thermal Diffusivity, mm2/s 6.1
3.2
Thermal Shock Resistance, points 17 to 25
15

Alloy Composition

Aluminum (Al), % 0
0.25 to 0.65
Carbon (C), % 0 to 0.3
0.050 to 0.1
Chromium (Cr), % 0
19 to 22
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 28 to 34
0 to 0.5
Iron (Fe), % 0 to 2.5
39.4 to 50.5
Manganese (Mn), % 0 to 2.0
0 to 1.5
Nickel (Ni), % 63 to 72
30 to 34
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0 to 0.5
0 to 0.7
Sulfur (S), % 0 to 0.024
0 to 0.010
Titanium (Ti), % 0
0.25 to 0.65