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Monel 400 vs. AISI 414 Stainless Steel

Monel 400 belongs to the nickel alloys classification, while AISI 414 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is Monel 400 and the bottom bar is AISI 414 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
190
Elongation at Break, % 20 to 40
17
Fatigue Strength, MPa 230 to 290
430 to 480
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 62
76
Shear Strength, MPa 370 to 490
550 to 590
Tensile Strength: Ultimate (UTS), MPa 540 to 780
900 to 960
Tensile Strength: Yield (Proof), MPa 210 to 590
700 to 790

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Maximum Temperature: Mechanical, °C 1000
750
Melting Completion (Liquidus), °C 1350
1440
Melting Onset (Solidus), °C 1300
1400
Specific Heat Capacity, J/kg-K 430
480
Thermal Conductivity, W/m-K 23
25
Thermal Expansion, µm/m-K 14
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.3
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 50
8.0
Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 7.9
2.1
Embodied Energy, MJ/kg 110
29
Embodied Water, L/kg 250
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 180
140 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 1080
1260 to 1590
Stiffness to Weight: Axial, points 10
14
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 17 to 25
32 to 34
Strength to Weight: Bending, points 17 to 21
27 to 28
Thermal Diffusivity, mm2/s 6.1
6.7
Thermal Shock Resistance, points 17 to 25
33 to 35

Alloy Composition

Carbon (C), % 0 to 0.3
0 to 0.15
Chromium (Cr), % 0
11.5 to 13.5
Copper (Cu), % 28 to 34
0
Iron (Fe), % 0 to 2.5
81.8 to 87.3
Manganese (Mn), % 0 to 2.0
0 to 1.0
Nickel (Ni), % 63 to 72
1.3 to 2.5
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.024
0 to 0.030