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Nickel 690 vs. S32304 Stainless Steel

Nickel 690 belongs to the nickel alloys classification, while S32304 stainless steel belongs to the iron alloys. They have a modest 37% of their average alloy composition in common, which, by itself, doesn't mean much. There are 31 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 690 and the bottom bar is S32304 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 90
250
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 3.4 to 34
28
Fatigue Strength, MPa 180 to 300
330
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 79
79
Shear Strength, MPa 420 to 570
440
Tensile Strength: Ultimate (UTS), MPa 640 to 990
670
Tensile Strength: Yield (Proof), MPa 250 to 760
460

Thermal Properties

Latent Heat of Fusion, J/g 320
290
Maximum Temperature: Mechanical, °C 1010
1050
Melting Completion (Liquidus), °C 1380
1420
Melting Onset (Solidus), °C 1340
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 14
15
Thermal Expansion, µm/m-K 14
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 50
14
Density, g/cm3 8.3
7.7
Embodied Carbon, kg CO2/kg material 8.2
2.8
Embodied Energy, MJ/kg 120
40
Embodied Water, L/kg 290
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31 to 170
170
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 1440
520
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 21 to 33
24
Strength to Weight: Bending, points 20 to 27
22
Thermal Diffusivity, mm2/s 3.5
4.0
Thermal Shock Resistance, points 16 to 25
18

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.030
Chromium (Cr), % 27 to 31
21.5 to 24.5
Copper (Cu), % 0 to 0.5
0.050 to 0.6
Iron (Fe), % 7.0 to 11
65 to 75.4
Manganese (Mn), % 0 to 0.5
0 to 2.5
Molybdenum (Mo), % 0
0.050 to 0.6
Nickel (Ni), % 58 to 66
3.0 to 5.5
Nitrogen (N), % 0
0.050 to 0.2
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030