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Monel R-405 vs. SAE-AISI A8 Steel

Monel R-405 belongs to the nickel alloys classification, while SAE-AISI A8 steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is Monel R-405 and the bottom bar is SAE-AISI A8 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
190
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 62
74
Tensile Strength: Ultimate (UTS), MPa 540 to 630
700 to 1920

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Melting Completion (Liquidus), °C 1350
1480
Melting Onset (Solidus), °C 1300
1430
Specific Heat Capacity, J/kg-K 430
470
Thermal Conductivity, W/m-K 23
37
Thermal Expansion, µm/m-K 14
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.4
8.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
9.5

Otherwise Unclassified Properties

Base Metal Price, % relative 50
8.5
Density, g/cm3 8.9
7.9
Embodied Carbon, kg CO2/kg material 7.9
2.3
Embodied Energy, MJ/kg 110
31
Embodied Water, L/kg 250
73

Common Calculations

Stiffness to Weight: Axial, points 10
14
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 17 to 20
25 to 68
Strength to Weight: Bending, points 17 to 18
22 to 44
Thermal Diffusivity, mm2/s 5.9
9.9
Thermal Shock Resistance, points 17 to 20
22 to 62

Alloy Composition

Carbon (C), % 0 to 0.3
0.5 to 0.6
Chromium (Cr), % 0
4.8 to 5.5
Copper (Cu), % 28 to 34
0 to 0.25
Iron (Fe), % 0 to 2.5
88.5 to 91.9
Manganese (Mn), % 0 to 2.0
0 to 0.5
Molybdenum (Mo), % 0
1.2 to 1.7
Nickel (Ni), % 63 to 72
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.5
0.75 to 1.1
Sulfur (S), % 0.025 to 0.060
0 to 0.030
Tungsten (W), % 0
1.0 to 1.5

Comparable Variants