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Nickel 689 vs. S21460 Stainless Steel

Nickel 689 belongs to the nickel alloys classification, while S21460 stainless steel belongs to the iron alloys. They have a modest 27% 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 (3, in this case) are not shown.

For each property being compared, the top bar is nickel 689 and the bottom bar is S21460 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 350
250
Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 23
46
Fatigue Strength, MPa 420
390
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 80
77
Shear Strength, MPa 790
580
Tensile Strength: Ultimate (UTS), MPa 1250
830
Tensile Strength: Yield (Proof), MPa 690
430

Thermal Properties

Latent Heat of Fusion, J/g 330
290
Maximum Temperature: Mechanical, °C 990
920
Melting Completion (Liquidus), °C 1440
1380
Melting Onset (Solidus), °C 1390
1330
Specific Heat Capacity, J/kg-K 450
480
Thermal Expansion, µm/m-K 12
18

Otherwise Unclassified Properties

Base Metal Price, % relative 70
14
Density, g/cm3 8.5
7.6
Embodied Carbon, kg CO2/kg material 11
3.0
Embodied Energy, MJ/kg 150
43
Embodied Water, L/kg 330
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
320
Resilience: Unit (Modulus of Resilience), kJ/m3 1170
460
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 41
30
Strength to Weight: Bending, points 30
26
Thermal Shock Resistance, points 35
17

Alloy Composition

Aluminum (Al), % 0.75 to 1.3
0
Boron (B), % 0.0030 to 0.010
0
Carbon (C), % 0.1 to 0.2
0 to 0.12
Chromium (Cr), % 18 to 20
17 to 19
Cobalt (Co), % 9.0 to 11
0
Iron (Fe), % 0 to 5.0
57.3 to 63.7
Manganese (Mn), % 0 to 0.5
14 to 16
Molybdenum (Mo), % 9.0 to 10.5
0
Nickel (Ni), % 48.3 to 60.9
5.0 to 6.0
Nitrogen (N), % 0
0.35 to 0.5
Phosphorus (P), % 0 to 0.015
0 to 0.060
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 2.3 to 2.8
0