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AISI 304 Stainless Steel vs. Monel 400

AISI 304 stainless steel belongs to the iron alloys classification, while Monel 400 belongs to the nickel alloys. There are 31 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 304 stainless steel and the bottom bar is Monel 400.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
160
Elongation at Break, % 8.0 to 43
20 to 40
Fatigue Strength, MPa 210 to 440
230 to 290
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 77
62
Shear Strength, MPa 400 to 690
370 to 490
Tensile Strength: Ultimate (UTS), MPa 580 to 1180
540 to 780
Tensile Strength: Yield (Proof), MPa 230 to 860
210 to 590

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Maximum Temperature: Mechanical, °C 710
1000
Melting Completion (Liquidus), °C 1450
1350
Melting Onset (Solidus), °C 1400
1300
Specific Heat Capacity, J/kg-K 480
430
Thermal Conductivity, W/m-K 16
23
Thermal Expansion, µm/m-K 17
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
3.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 15
50
Calomel Potential, mV -80
-80
Density, g/cm3 7.8
8.9
Embodied Carbon, kg CO2/kg material 3.0
7.9
Embodied Energy, MJ/kg 43
110
Embodied Water, L/kg 150
250

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86 to 250
140 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 1870
140 to 1080
Stiffness to Weight: Axial, points 14
10
Stiffness to Weight: Bending, points 25
21
Strength to Weight: Axial, points 21 to 42
17 to 25
Strength to Weight: Bending, points 20 to 32
17 to 21
Thermal Diffusivity, mm2/s 4.2
6.1
Thermal Shock Resistance, points 12 to 25
17 to 25

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.3
Chromium (Cr), % 18 to 20
0
Copper (Cu), % 0
28 to 34
Iron (Fe), % 66.5 to 74
0 to 2.5
Manganese (Mn), % 0 to 2.0
0 to 2.0
Nickel (Ni), % 8.0 to 10.5
63 to 72
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.024

Comparable Variants