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Monel 400 vs. AISI 302B Stainless Steel

Monel 400 belongs to the nickel alloys classification, while AISI 302B stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is Monel 400 and the bottom bar is AISI 302B stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
200
Elongation at Break, % 20 to 40
45
Fatigue Strength, MPa 230 to 290
210
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 62
76
Shear Strength, MPa 370 to 490
410
Tensile Strength: Ultimate (UTS), MPa 540 to 780
580
Tensile Strength: Yield (Proof), MPa 210 to 590
230

Thermal Properties

Latent Heat of Fusion, J/g 270
320
Maximum Temperature: Mechanical, °C 1000
930
Melting Completion (Liquidus), °C 1350
1400
Melting Onset (Solidus), °C 1300
1360
Specific Heat Capacity, J/kg-K 430
490
Thermal Conductivity, W/m-K 23
17
Thermal Expansion, µm/m-K 14
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.3
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 50
15
Density, g/cm3 8.9
7.7
Embodied Carbon, kg CO2/kg material 7.9
3.0
Embodied Energy, MJ/kg 110
43
Embodied Water, L/kg 250
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 180
210
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 1080
140
Stiffness to Weight: Axial, points 10
14
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 17 to 25
21
Strength to Weight: Bending, points 17 to 21
20
Thermal Diffusivity, mm2/s 6.1
4.4
Thermal Shock Resistance, points 17 to 25
13

Alloy Composition

Carbon (C), % 0 to 0.3
0 to 0.15
Chromium (Cr), % 0
17 to 19
Copper (Cu), % 28 to 34
0
Iron (Fe), % 0 to 2.5
65.7 to 73
Manganese (Mn), % 0 to 2.0
0 to 2.0
Nickel (Ni), % 63 to 72
8.0 to 10
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.5
2.0 to 3.0
Sulfur (S), % 0 to 0.024
0 to 0.030