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S32550 Stainless Steel vs. N06985 Nickel

S32550 stainless steel belongs to the iron alloys classification, while N06985 nickel belongs to the nickel alloys. They have 54% of their average alloy composition in common. 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 S32550 stainless steel and the bottom bar is N06985 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 21
45
Fatigue Strength, MPa 400
220
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
80
Shear Strength, MPa 540
480
Tensile Strength: Ultimate (UTS), MPa 860
690
Tensile Strength: Yield (Proof), MPa 620
260

Thermal Properties

Latent Heat of Fusion, J/g 300
320
Maximum Temperature: Mechanical, °C 1100
990
Melting Completion (Liquidus), °C 1440
1350
Melting Onset (Solidus), °C 1390
1260
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 16
10
Thermal Expansion, µm/m-K 13
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 20
55
Density, g/cm3 7.8
8.4
Embodied Carbon, kg CO2/kg material 3.8
8.8
Embodied Energy, MJ/kg 53
120
Embodied Water, L/kg 180
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
250
Resilience: Unit (Modulus of Resilience), kJ/m3 940
160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 31
23
Strength to Weight: Bending, points 26
21
Thermal Diffusivity, mm2/s 4.4
2.6
Thermal Shock Resistance, points 23
16

Alloy Composition

Carbon (C), % 0 to 0.040
0 to 0.015
Chromium (Cr), % 24 to 27
21 to 23.5
Cobalt (Co), % 0
0 to 5.0
Copper (Cu), % 1.5 to 2.5
1.5 to 2.5
Iron (Fe), % 57.2 to 67
18 to 21
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 2.9 to 3.9
6.0 to 8.0
Nickel (Ni), % 4.5 to 6.5
35.9 to 53.5
Niobium (Nb), % 0
0 to 0.5
Nitrogen (N), % 0.1 to 0.25
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
0 to 1.5