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Monel 400 vs. EN 1.4021 Stainless Steel

Monel 400 belongs to the nickel alloys classification, while EN 1.4021 stainless steel belongs to the iron alloys. 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 1.4021 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
190
Elongation at Break, % 20 to 40
11 to 17
Fatigue Strength, MPa 230 to 290
240 to 380
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 62
76
Shear Strength, MPa 370 to 490
390 to 530
Tensile Strength: Ultimate (UTS), MPa 540 to 780
630 to 880
Tensile Strength: Yield (Proof), MPa 210 to 590
390 to 670

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Maximum Temperature: Mechanical, °C 1000
760
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
30
Thermal Expansion, µm/m-K 14
11

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 50
7.0
Density, g/cm3 8.9
7.7
Embodied Carbon, kg CO2/kg material 7.9
1.9
Embodied Energy, MJ/kg 110
27
Embodied Water, L/kg 250
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 180
88 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 1080
400 to 1160
Stiffness to Weight: Axial, points 10
14
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 17 to 25
23 to 31
Strength to Weight: Bending, points 17 to 21
21 to 26
Thermal Diffusivity, mm2/s 6.1
8.1
Thermal Shock Resistance, points 17 to 25
22 to 31

Alloy Composition

Carbon (C), % 0 to 0.3
0.16 to 0.25
Chromium (Cr), % 0
12 to 14
Copper (Cu), % 28 to 34
0
Iron (Fe), % 0 to 2.5
83.2 to 87.8
Manganese (Mn), % 0 to 2.0
0 to 1.5
Nickel (Ni), % 63 to 72
0
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 0.015

Comparable Variants