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AISI 409 Stainless Steel vs. Monel K-500

AISI 409 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 (4, in this case) are not shown.

For each property being compared, the top bar is AISI 409 stainless steel and the bottom bar is Monel K-500.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
180 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 100
300 to 2420
Stiffness to Weight: Axial, points 14
10
Stiffness to Weight: Bending, points 25
21
Strength to Weight: Axial, points 15
21 to 35
Strength to Weight: Bending, points 16
19 to 27
Thermal Diffusivity, mm2/s 6.7
4.8
Thermal Shock Resistance, points 15
21 to 36

Alloy Composition

Aluminum (Al), % 0
2.3 to 3.2
Carbon (C), % 0 to 0.080
0 to 0.18
Chromium (Cr), % 10.5 to 11.7
0
Copper (Cu), % 0
27 to 33
Iron (Fe), % 84.9 to 89.5
0 to 2.0
Manganese (Mn), % 0 to 1.0
0 to 1.5
Nickel (Ni), % 0 to 0.5
63 to 70.4
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0 to 0.75
0.35 to 0.85