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Monel R-405 vs. EN 1.7725 Steel

Monel R-405 belongs to the nickel alloys classification, while EN 1.7725 steel belongs to the iron alloys. There are 29 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 R-405 and the bottom bar is EN 1.7725 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
190
Elongation at Break, % 9.1 to 39
14
Fatigue Strength, MPa 210 to 250
390 to 550
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 62
73
Tensile Strength: Ultimate (UTS), MPa 540 to 630
830 to 1000
Tensile Strength: Yield (Proof), MPa 190 to 350
610 to 860

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 900
440
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
39
Thermal Expansion, µm/m-K 14
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.4
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 50
2.9
Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 7.9
1.8
Embodied Energy, MJ/kg 110
24
Embodied Water, L/kg 250
54

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 49 to 170
110 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 120 to 370
980 to 1940
Stiffness to Weight: Axial, points 10
13
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 17 to 20
29 to 35
Strength to Weight: Bending, points 17 to 18
25 to 28
Thermal Diffusivity, mm2/s 5.9
11
Thermal Shock Resistance, points 17 to 20
24 to 29

Alloy Composition

Carbon (C), % 0 to 0.3
0.27 to 0.34
Chromium (Cr), % 0
1.3 to 1.7
Copper (Cu), % 28 to 34
0
Iron (Fe), % 0 to 2.5
95.7 to 97.5
Manganese (Mn), % 0 to 2.0
0.6 to 1.0
Molybdenum (Mo), % 0
0.3 to 0.5
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
Vanadium (V), % 0
0.050 to 0.15

Comparable Variants