Spherical Inconel 690 Powder Description
Spherical Inconel 690 Powder is manufactured by gas atomization. It features a spherical morphology with good flow characteristics and high packing density.
Inconel 690 is a high-chromium nickel-base alloy with superior aqueous corrosion and stress-cracking resistance. It is widely used in many corrosive environments and at high temperatures.
Spherical Inconel 690 Powder Specifications
Chemical Composition (%)
|
Alloy
|
C
|
Si
|
Mn
|
P
|
S
|
Cr
|
Ni
|
Cu
|
Fe
|
|
Inconel 690
|
≤0.05
|
≤0.05
|
≤0.05
|
≤0.02
|
≤0.015
|
27.0-31.0
|
≥58.0
|
≤0.50
|
7.0-11.0
|
Physical Properties
|
Apparent Density (g/cm3)
|
8.19
|
|
Tensile Strength (MPa)
|
650
|
|
Yield Strength (MPa)
|
295
|
|
Melting Point (℃)
|
1320-1390
|
|
Elongation at break %
|
35
|
Spherical Inconel 690 Powder Applications
Spherical Inconel 690 Powder is widely used in many corrosive environments and at high temperatures. It is used in industrial and aerospace steam turbine parts, high-temperature heat exchangers, valves and springs, components of nuclear reactors, etc.
Comparison of Inconel 690 with Other Inconel Alloy Powders:
|
Property
|
Inconel 600
|
Inconel 625
|
Inconel 690
|
|
Corrosion Resistance
|
Moderate
|
Excellent (contains Mo/Nb)
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Excellent (high Cr content)
|
|
High-Temperature Strength
|
Moderate (suitable below 800°C)
|
Outstanding (up to 980°C)
|
Good (high Cr improves oxidation resistance)
|
|
Oxidation Resistance
|
Moderate
|
Good
|
Optimal (high Cr forms dense oxide layer)
|
|
Uses
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Heat treatment equipment, alkali industry
|
Marine engineering, aircraft engine components
|
Nuclear power plant steam generator tubes, chemical reactors
|
Spherical Inconel 690 Powder Packaging
Our Spherical Inconel 690 Powder is carefully handled during storage and transportation to preserve the quality of our product in its original condition.
FAQs
1. What is a comparison of Inconel 690 powder with other nickel alloys?
Inconel 690 powder has good performance in corrosive and oxidizing high-temperature conditions due to its high chromium content (27-31%). It is more corrosion-resistant than Inconel 600 and more stress cracking resistant than Inconel 625 in sulfur-containing environments, while 625 has better resistance to chlorides. It is qualified for nuclear use due to its low iron content.
2. Where is Inconel 690 powder typically used?
Primarily for nuclear steam generator tubing, it's also used in chemical reactors, heat treating equipment, and oil refinery equipment that's exposed to extreme heat and corrosion. In 3D printing, it creates robust, complex parts for challenging environments.
