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EN 1.4125 Stainless Steel vs. Monel K-500

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

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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