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Monel K-500 vs. AISI 409 Stainless Steel

Monel K-500 belongs to the nickel alloys classification, while AISI 409 stainless steel belongs to the iron alloys. There are 30 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 K-500 and the bottom bar is AISI 409 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
190
Elongation at Break, % 25 to 36
24
Fatigue Strength, MPa 260 to 560
140
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 61
75
Shear Strength, MPa 430 to 700
270
Tensile Strength: Ultimate (UTS), MPa 640 to 1100
420
Tensile Strength: Yield (Proof), MPa 310 to 880
200

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Maximum Temperature: Mechanical, °C 900
710
Melting Completion (Liquidus), °C 1350
1450
Melting Onset (Solidus), °C 1320
1400
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 18
25
Thermal Expansion, µm/m-K 14
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.1
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 50
6.5
Density, g/cm3 8.7
7.7
Embodied Carbon, kg CO2/kg material 8.1
2.0
Embodied Energy, MJ/kg 120
28
Embodied Water, L/kg 280
94

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180 to 260
83
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 2420
100
Stiffness to Weight: Axial, points 10
14
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 21 to 35
15
Strength to Weight: Bending, points 19 to 27
16
Thermal Diffusivity, mm2/s 4.8
6.7
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 0.080
Chromium (Cr), % 0
10.5 to 11.7
Copper (Cu), % 27 to 33
0
Iron (Fe), % 0 to 2.0
84.9 to 89.5
Manganese (Mn), % 0 to 1.5
0 to 1.0
Nickel (Ni), % 63 to 70.4
0 to 0.5
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 0.35 to 0.85
0 to 0.75