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Monel K-500 vs. EN 1.4125 Stainless Steel

Monel K-500 belongs to the nickel alloys classification, while EN 1.4125 stainless steel belongs to the iron alloys. There are 30 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 K-500 and the bottom bar is EN 1.4125 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
200
Elongation at Break, % 25 to 36
19
Fatigue Strength, MPa 260 to 560
300
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 61
77
Shear Strength, MPa 430 to 700
500
Tensile Strength: Ultimate (UTS), MPa 640 to 1100
800
Tensile Strength: Yield (Proof), MPa 310 to 880
470

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Maximum Temperature: Mechanical, °C 900
870
Melting Completion (Liquidus), °C 1350
1430
Melting Onset (Solidus), °C 1320
1390
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 18
15
Thermal Expansion, µm/m-K 14
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.1
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 50
9.0
Density, g/cm3 8.7
7.7
Embodied Carbon, kg CO2/kg material 8.1
2.3
Embodied Energy, MJ/kg 120
32
Embodied Water, L/kg 280
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180 to 260
130
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 2420
570
Stiffness to Weight: Axial, points 10
14
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 21 to 35
29
Strength to Weight: Bending, points 19 to 27
25
Thermal Diffusivity, mm2/s 4.8
4.1
Thermal Shock Resistance, points 21 to 36
29

Alloy Composition

Aluminum (Al), % 2.3 to 3.2
0
Carbon (C), % 0 to 0.18
1.0 to 1.2
Chromium (Cr), % 0
16 to 18
Copper (Cu), % 27 to 33
0
Iron (Fe), % 0 to 2.0
78 to 82.7
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 0
0.4 to 0.8
Nickel (Ni), % 63 to 70.4
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.015
Titanium (Ti), % 0.35 to 0.85
0