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Monel R-405 vs. EN 1.7221 Steel

Monel R-405 belongs to the nickel alloys classification, while EN 1.7221 steel belongs to the iron alloys. There are 29 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 R-405 and the bottom bar is EN 1.7221 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
190
Elongation at Break, % 9.1 to 39
11 to 17
Fatigue Strength, MPa 210 to 250
290 to 390
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 62
73
Tensile Strength: Ultimate (UTS), MPa 540 to 630
650 to 780
Tensile Strength: Yield (Proof), MPa 190 to 350
430 to 630

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 900
420
Melting Completion (Liquidus), °C 1350
1460
Melting Onset (Solidus), °C 1300
1420
Specific Heat Capacity, J/kg-K 430
470
Thermal Conductivity, W/m-K 23
44
Thermal Expansion, µm/m-K 14
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 50
2.4
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
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 49 to 170
83 to 98
Resilience: Unit (Modulus of Resilience), kJ/m3 120 to 370
490 to 1050
Stiffness to Weight: Axial, points 10
13
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 17 to 20
23 to 27
Strength to Weight: Bending, points 17 to 18
21 to 24
Thermal Diffusivity, mm2/s 5.9
12
Thermal Shock Resistance, points 17 to 20
19 to 23

Alloy Composition

Carbon (C), % 0 to 0.3
0.22 to 0.29
Chromium (Cr), % 0
0.8 to 1.2
Copper (Cu), % 28 to 34
0
Iron (Fe), % 0 to 2.5
96.8 to 98.3
Manganese (Mn), % 0 to 2.0
0.5 to 0.8
Molybdenum (Mo), % 0
0.15 to 0.3
Nickel (Ni), % 63 to 72
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.5
0 to 0.6
Sulfur (S), % 0.025 to 0.060
0 to 0.030

Comparable Variants