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S44800 Stainless Steel vs. Monel 400

S44800 stainless steel belongs to the iron alloys classification, while Monel 400 belongs to the nickel 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 S44800 stainless steel and the bottom bar is Monel 400.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
160
Elongation at Break, % 23
20 to 40
Fatigue Strength, MPa 300
230 to 290
Poisson's Ratio 0.27
0.32
Shear Modulus, GPa 82
62
Shear Strength, MPa 370
370 to 490
Tensile Strength: Ultimate (UTS), MPa 590
540 to 780
Tensile Strength: Yield (Proof), MPa 450
210 to 590

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Maximum Temperature: Mechanical, °C 1100
1000
Melting Completion (Liquidus), °C 1460
1350
Melting Onset (Solidus), °C 1410
1300
Specific Heat Capacity, J/kg-K 480
430
Thermal Conductivity, W/m-K 17
23
Thermal Expansion, µm/m-K 11
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.6
3.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 19
50
Density, g/cm3 7.8
8.9
Embodied Carbon, kg CO2/kg material 3.8
7.9
Embodied Energy, MJ/kg 52
110
Embodied Water, L/kg 190
250

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
140 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 480
140 to 1080
Stiffness to Weight: Axial, points 15
10
Stiffness to Weight: Bending, points 25
21
Strength to Weight: Axial, points 21
17 to 25
Strength to Weight: Bending, points 20
17 to 21
Thermal Diffusivity, mm2/s 4.6
6.1
Thermal Shock Resistance, points 19
17 to 25

Alloy Composition

Carbon (C), % 0 to 0.010
0 to 0.3
Chromium (Cr), % 28 to 30
0
Copper (Cu), % 0 to 0.15
28 to 34
Iron (Fe), % 62.6 to 66.5
0 to 2.5
Manganese (Mn), % 0 to 0.3
0 to 2.0
Molybdenum (Mo), % 3.5 to 4.2
0
Nickel (Ni), % 2.0 to 2.5
63 to 72
Nitrogen (N), % 0 to 0.020
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.2
0 to 0.5
Sulfur (S), % 0 to 0.020
0 to 0.024