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Nickel 690 vs. S21603 Stainless Steel

Nickel 690 belongs to the nickel alloys classification, while S21603 stainless steel belongs to the iron alloys. They have a modest 35% 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 nickel 690 and the bottom bar is S21603 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 90
200
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 3.4 to 34
45
Fatigue Strength, MPa 180 to 300
360
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
79
Shear Strength, MPa 420 to 570
490
Tensile Strength: Ultimate (UTS), MPa 640 to 990
690
Tensile Strength: Yield (Proof), MPa 250 to 760
390

Thermal Properties

Latent Heat of Fusion, J/g 320
290
Maximum Temperature: Mechanical, °C 1010
990
Melting Completion (Liquidus), °C 1380
1420
Melting Onset (Solidus), °C 1340
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 14
17

Otherwise Unclassified Properties

Base Metal Price, % relative 50
17
Density, g/cm3 8.3
7.7
Embodied Carbon, kg CO2/kg material 8.2
3.6
Embodied Energy, MJ/kg 120
50
Embodied Water, L/kg 290
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31 to 170
270
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 1440
380
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 21 to 33
25
Strength to Weight: Bending, points 20 to 27
22
Thermal Shock Resistance, points 16 to 25
15

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.030
Chromium (Cr), % 27 to 31
17.5 to 22
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 7.0 to 11
57.6 to 67.8
Manganese (Mn), % 0 to 0.5
7.5 to 9.0
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 58 to 66
5.0 to 7.0
Nitrogen (N), % 0
0.25 to 0.5
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.5
0 to 0.75
Sulfur (S), % 0 to 0.015
0 to 0.030