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Annealed AISI 420 vs. Annealed Monel 400

Annealed AISI 420 belongs to the iron alloys classification, while annealed Monel 400 belongs to the nickel alloys. There are 31 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 annealed AISI 420 and the bottom bar is annealed Monel 400.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
120
Elastic (Young's, Tensile) Modulus, GPa 190
160
Elongation at Break, % 15
40
Fatigue Strength, MPa 220
230
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 76
62
Shear Strength, MPa 420
370
Tensile Strength: Ultimate (UTS), MPa 690
540
Tensile Strength: Yield (Proof), MPa 380
210

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Maximum Temperature: Mechanical, °C 620
1000
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
3.3
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
170
Resilience: Unit (Modulus of Resilience), kJ/m3 380
140
Stiffness to Weight: Axial, points 14
10
Stiffness to Weight: Bending, points 25
21
Strength to Weight: Axial, points 25
17
Strength to Weight: Bending, points 22
17
Thermal Diffusivity, mm2/s 7.3
6.1
Thermal Shock Resistance, points 25
17

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 to 0.024