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S44660 Stainless Steel vs. Nickel 689

S44660 stainless steel belongs to the iron alloys classification, while nickel 689 belongs to the nickel alloys. They have a modest 28% of their average alloy composition in common, which, by itself, doesn't mean much. There are 27 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is S44660 stainless steel and the bottom bar is nickel 689.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
350
Elastic (Young's, Tensile) Modulus, GPa 210
210
Elongation at Break, % 20
23
Fatigue Strength, MPa 330
420
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 81
80
Shear Strength, MPa 410
790
Tensile Strength: Ultimate (UTS), MPa 660
1250
Tensile Strength: Yield (Proof), MPa 510
690

Thermal Properties

Latent Heat of Fusion, J/g 300
330
Maximum Temperature: Mechanical, °C 1100
990
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1410
1390
Specific Heat Capacity, J/kg-K 480
450
Thermal Expansion, µm/m-K 11
12

Otherwise Unclassified Properties

Base Metal Price, % relative 21
70
Density, g/cm3 7.7
8.5
Embodied Carbon, kg CO2/kg material 4.3
11
Embodied Energy, MJ/kg 61
150
Embodied Water, L/kg 180
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
240
Resilience: Unit (Modulus of Resilience), kJ/m3 640
1170
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 24
41
Strength to Weight: Bending, points 22
30
Thermal Shock Resistance, points 21
35

Alloy Composition

Aluminum (Al), % 0
0.75 to 1.3
Boron (B), % 0
0.0030 to 0.010
Carbon (C), % 0 to 0.030
0.1 to 0.2
Chromium (Cr), % 25 to 28
18 to 20
Cobalt (Co), % 0
9.0 to 11
Iron (Fe), % 60.4 to 71
0 to 5.0
Manganese (Mn), % 0 to 1.0
0 to 0.5
Molybdenum (Mo), % 3.0 to 4.0
9.0 to 10.5
Nickel (Ni), % 1.0 to 3.5
48.3 to 60.9
Niobium (Nb), % 0.2 to 1.0
0
Nitrogen (N), % 0 to 0.040
0
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0.2 to 1.0
2.3 to 2.8