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Monel 400 vs. SAE-AISI 4161 Steel

Monel 400 belongs to the nickel alloys classification, while SAE-AISI 4161 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is Monel 400 and the bottom bar is SAE-AISI 4161 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
190
Elongation at Break, % 20 to 40
20
Fatigue Strength, MPa 230 to 290
290
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 62
73
Shear Strength, MPa 370 to 490
420
Tensile Strength: Ultimate (UTS), MPa 540 to 780
680
Tensile Strength: Yield (Proof), MPa 210 to 590
410

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 1000
420
Melting Completion (Liquidus), °C 1350
1460
Melting Onset (Solidus), °C 1300
1410
Specific Heat Capacity, J/kg-K 430
470
Thermal Conductivity, W/m-K 23
43
Thermal Expansion, µm/m-K 14
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.3
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 50
2.5
Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 7.9
1.5
Embodied Energy, MJ/kg 110
20
Embodied Water, L/kg 250
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 180
120
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 1080
460
Stiffness to Weight: Axial, points 10
13
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 17 to 25
24
Strength to Weight: Bending, points 17 to 21
22
Thermal Diffusivity, mm2/s 6.1
12
Thermal Shock Resistance, points 17 to 25
22

Alloy Composition

Carbon (C), % 0 to 0.3
0.56 to 0.64
Chromium (Cr), % 0
0.7 to 0.9
Copper (Cu), % 28 to 34
0
Iron (Fe), % 0 to 2.5
96.7 to 97.6
Manganese (Mn), % 0 to 2.0
0.75 to 1.0
Molybdenum (Mo), % 0
0.25 to 0.35
Nickel (Ni), % 63 to 72
0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.5
0.15 to 0.35
Sulfur (S), % 0 to 0.024
0 to 0.040