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S32550 Stainless Steel vs. Nickel 690

S32550 stainless steel belongs to the iron alloys classification, while nickel 690 belongs to the nickel alloys. They have 41% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is S32550 stainless steel and the bottom bar is nickel 690.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
90
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 21
3.4 to 34
Fatigue Strength, MPa 400
180 to 300
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
79
Shear Strength, MPa 540
420 to 570
Tensile Strength: Ultimate (UTS), MPa 860
640 to 990
Tensile Strength: Yield (Proof), MPa 620
250 to 760

Thermal Properties

Latent Heat of Fusion, J/g 300
320
Maximum Temperature: Mechanical, °C 1100
1010
Melting Completion (Liquidus), °C 1440
1380
Melting Onset (Solidus), °C 1390
1340
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
14
Thermal Expansion, µm/m-K 13
14

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
50
Density, g/cm3 7.8
8.3
Embodied Carbon, kg CO2/kg material 3.8
8.2
Embodied Energy, MJ/kg 53
120
Embodied Water, L/kg 180
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
31 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 940
160 to 1440
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 31
21 to 33
Strength to Weight: Bending, points 26
20 to 27
Thermal Diffusivity, mm2/s 4.4
3.5
Thermal Shock Resistance, points 23
16 to 25

Alloy Composition

Carbon (C), % 0 to 0.040
0 to 0.050
Chromium (Cr), % 24 to 27
27 to 31
Copper (Cu), % 1.5 to 2.5
0 to 0.5
Iron (Fe), % 57.2 to 67
7.0 to 11
Manganese (Mn), % 0 to 1.5
0 to 0.5
Molybdenum (Mo), % 2.9 to 3.9
0
Nickel (Ni), % 4.5 to 6.5
58 to 66
Nitrogen (N), % 0.1 to 0.25
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.015