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Monel 400 vs. N08028 Stainless Steel

Monel 400 belongs to the nickel alloys classification, while N08028 stainless steel belongs to the iron alloys. They have a modest 36% of their average alloy composition in common, which, by itself, doesn't mean much. There are 28 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is Monel 400 and the bottom bar is N08028 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
200
Elongation at Break, % 20 to 40
45
Fatigue Strength, MPa 230 to 290
220
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 62
80
Shear Strength, MPa 370 to 490
400
Tensile Strength: Ultimate (UTS), MPa 540 to 780
570
Tensile Strength: Yield (Proof), MPa 210 to 590
240

Thermal Properties

Latent Heat of Fusion, J/g 270
320
Maximum Temperature: Mechanical, °C 1000
1100
Melting Completion (Liquidus), °C 1350
1420
Melting Onset (Solidus), °C 1300
1370
Specific Heat Capacity, J/kg-K 430
470
Thermal Conductivity, W/m-K 23
12
Thermal Expansion, µm/m-K 14
16

Otherwise Unclassified Properties

Base Metal Price, % relative 50
37
Density, g/cm3 8.9
8.1
Embodied Carbon, kg CO2/kg material 7.9
6.4
Embodied Energy, MJ/kg 110
89
Embodied Water, L/kg 250
240

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 180
210
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 1080
140
Stiffness to Weight: Axial, points 10
14
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 17 to 25
19
Strength to Weight: Bending, points 17 to 21
19
Thermal Diffusivity, mm2/s 6.1
3.2
Thermal Shock Resistance, points 17 to 25
12

Alloy Composition

Carbon (C), % 0 to 0.3
0 to 0.030
Chromium (Cr), % 0
26 to 28
Copper (Cu), % 28 to 34
0.6 to 1.4
Iron (Fe), % 0 to 2.5
29 to 40.4
Manganese (Mn), % 0 to 2.0
0 to 2.5
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 63 to 72
30 to 34
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.024
0 to 0.030