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Monel K-500 vs. S21603 Stainless Steel

Monel K-500 belongs to the nickel alloys classification, while S21603 stainless steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is Monel K-500 and the bottom bar is S21603 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
200
Elongation at Break, % 25 to 36
45
Fatigue Strength, MPa 260 to 560
360
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 61
79
Shear Strength, MPa 430 to 700
490
Tensile Strength: Ultimate (UTS), MPa 640 to 1100
690
Tensile Strength: Yield (Proof), MPa 310 to 880
390

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Maximum Temperature: Mechanical, °C 900
990
Melting Completion (Liquidus), °C 1350
1420
Melting Onset (Solidus), °C 1320
1380
Specific Heat Capacity, J/kg-K 440
480
Thermal Expansion, µm/m-K 14
17

Otherwise Unclassified Properties

Base Metal Price, % relative 50
17
Density, g/cm3 8.7
7.7
Embodied Carbon, kg CO2/kg material 8.1
3.6
Embodied Energy, MJ/kg 120
50
Embodied Water, L/kg 280
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180 to 260
270
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 2420
380
Stiffness to Weight: Axial, points 10
14
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 21 to 35
25
Strength to Weight: Bending, points 19 to 27
22
Thermal Shock Resistance, points 21 to 36
15

Alloy Composition

Aluminum (Al), % 2.3 to 3.2
0
Carbon (C), % 0 to 0.18
0 to 0.030
Chromium (Cr), % 0
17.5 to 22
Copper (Cu), % 27 to 33
0
Iron (Fe), % 0 to 2.0
57.6 to 67.8
Manganese (Mn), % 0 to 1.5
7.5 to 9.0
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 63 to 70.4
5.0 to 7.0
Nitrogen (N), % 0
0.25 to 0.5
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.5
0 to 0.75
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 0.35 to 0.85
0