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S44800 Stainless Steel vs. Nickel 617

S44800 stainless steel belongs to the iron alloys classification, while nickel 617 belongs to the nickel alloys. They have a modest 30% of their average alloy composition in common, which, by itself, doesn't mean much. There are 30 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 S44800 stainless steel and the bottom bar is nickel 617.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
210
Elongation at Break, % 23
40
Fatigue Strength, MPa 300
220
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 82
80
Shear Strength, MPa 370
510
Tensile Strength: Ultimate (UTS), MPa 590
740
Tensile Strength: Yield (Proof), MPa 450
280

Thermal Properties

Latent Heat of Fusion, J/g 300
330
Maximum Temperature: Mechanical, °C 1100
1010
Melting Completion (Liquidus), °C 1460
1380
Melting Onset (Solidus), °C 1410
1330
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 17
13
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.6
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
1.5

Otherwise Unclassified Properties

Base Metal Price, % relative 19
75
Density, g/cm3 7.8
8.5
Embodied Carbon, kg CO2/kg material 3.8
10
Embodied Energy, MJ/kg 52
140
Embodied Water, L/kg 190
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
230
Resilience: Unit (Modulus of Resilience), kJ/m3 480
190
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 21
24
Strength to Weight: Bending, points 20
21
Thermal Diffusivity, mm2/s 4.6
3.5
Thermal Shock Resistance, points 19
21

Alloy Composition

Aluminum (Al), % 0
0.8 to 1.5
Boron (B), % 0
0 to 0.0060
Carbon (C), % 0 to 0.010
0.050 to 0.15
Chromium (Cr), % 28 to 30
20 to 24
Cobalt (Co), % 0
10 to 15
Copper (Cu), % 0 to 0.15
0 to 0.5
Iron (Fe), % 62.6 to 66.5
0 to 3.0
Manganese (Mn), % 0 to 0.3
0 to 1.0
Molybdenum (Mo), % 3.5 to 4.2
8.0 to 10
Nickel (Ni), % 2.0 to 2.5
44.5 to 62
Nitrogen (N), % 0 to 0.020
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.2
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.015