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AISI 420 Stainless Steel vs. Monel R-405

AISI 420 stainless steel belongs to the iron alloys classification, while Monel R-405 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 AISI 420 stainless steel and the bottom bar is Monel R-405.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
160
Elongation at Break, % 8.0 to 15
9.1 to 39
Fatigue Strength, MPa 220 to 670
210 to 250
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 76
62
Shear Strength, MPa 420 to 1010
350 to 370
Tensile Strength: Ultimate (UTS), MPa 690 to 1720
540 to 630
Tensile Strength: Yield (Proof), MPa 380 to 1310
190 to 350

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Maximum Temperature: Mechanical, °C 620
900
Melting Completion (Liquidus), °C 1510
1350
Melting Onset (Solidus), °C 1450
1300
Specific Heat Capacity, J/kg-K 480
430
Thermal Conductivity, W/m-K 27
23
Thermal Expansion, µm/m-K 10
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
50
Density, g/cm3 7.7
8.9
Embodied Carbon, kg CO2/kg material 2.0
7.9
Embodied Energy, MJ/kg 28
110
Embodied Water, L/kg 100
250

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 88 to 130
49 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 4410
120 to 370
Stiffness to Weight: Axial, points 14
10
Stiffness to Weight: Bending, points 25
21
Strength to Weight: Axial, points 25 to 62
17 to 20
Strength to Weight: Bending, points 22 to 41
17 to 18
Thermal Diffusivity, mm2/s 7.3
5.9
Thermal Shock Resistance, points 25 to 62
17 to 20

Alloy Composition

Carbon (C), % 0.15 to 0.4
0 to 0.3
Chromium (Cr), % 12 to 14
0
Copper (Cu), % 0
28 to 34
Iron (Fe), % 82.3 to 87.9
0 to 2.5
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 0.75
63 to 72
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0.025 to 0.060

Comparable Variants