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EN 1.4740 Stainless Steel vs. Monel 400

EN 1.4740 stainless steel belongs to the iron alloys classification, while Monel 400 belongs to the nickel alloys. There are 21 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is EN 1.4740 stainless steel and the bottom bar is Monel 400.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
160
Elongation at Break, % 22
20 to 40
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 77
62

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Maximum Temperature: Mechanical, °C 900
1000
Melting Completion (Liquidus), °C 1420
1350
Melting Onset (Solidus), °C 1370
1300
Specific Heat Capacity, J/kg-K 490
430
Thermal Conductivity, W/m-K 18
23
Thermal Expansion, µm/m-K 10
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
3.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
50
Density, g/cm3 7.6
8.9
Embodied Carbon, kg CO2/kg material 2.3
7.9
Embodied Energy, MJ/kg 32
110
Embodied Water, L/kg 120
250

Common Calculations

Stiffness to Weight: Axial, points 14
10
Stiffness to Weight: Bending, points 25
21
Thermal Diffusivity, mm2/s 4.8
6.1

Alloy Composition

Carbon (C), % 0.3 to 0.5
0 to 0.3
Chromium (Cr), % 16 to 19
0
Copper (Cu), % 0
28 to 34
Iron (Fe), % 75.4 to 82.7
0 to 2.5
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 1.0
63 to 72
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 1.0 to 2.5
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.024