Incoloy Flanges

Gnee manufactures Incoloy flanges in accordance with international standards such as ASTM, ASME and DIN, with a wide range of products including weld neck, slip-on, socket weld, blind flange, lap flange and threaded flange, each designed to meet specific connection and sealing requirements. Our manufacturing process includes precision forging and machining to achieve the dimensions and surface finish required by our customers, ensuring a tight fit and reliable seal when used in piping systems.

  • Weld Neck / Socket Weld / Blind Flange / Threaded
  • Pressure Class: 150 to 2500
  • Non-Destructive Testing
  • Support Customize Size & Shapes
  • Free Sample
  • High-Temperature Resistance/Corrosion Resistance
  • ASTM/ASME/ISO/DIN Certified
  • Factory Price
  • Loading Port: Shanghai, Tianjin, Qingdao
  • 30-50 Days, 7 Days For Stock Goods
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Gnee supplies Different Types Of Incoloy Flanges
As a leading manufacturer and supplier of steel products, Gnee supplies a variety of types of Incoloy flanges with rich product sizes that can be processed and customized according to customers’ specific size requirements. Our products are widely used in fields such as petrochemical, energy generation, chemical engineering, aerospace and marine engineering. Not limited to the following types, if you have any needs, please feel free to contact us!
More information about Incoloy Alloy Flanges
Product NameIncoloy Flanges
Size1/2”- 60”
Standard SpecificationASTM, DIN, SUS, AISI, SAE, ANSI, ASME, EN, JIS, BS, GB, UNS
Flanges Face TypeRaised Face (RF), Flat Face(FF), Ring-Type Joint (RTJ), Tongue-and-Groove (T&G), Male-and-Female (M&F)
Class150#, 300#, 600#, 900#, 1500#, 2500#
PressurePN6, PN10, PN16, PN25, PN40, PN64
Test CertificateUnder Third-Party Inspection
Manufacturer Test Certificate
Packaging DetailsStandard Export Seaworthy Packing Or As Required
Petrochemical Industry– Refineries
– Chemical Plants
– Gas and Oil Pipelines
Power Generation– Thermal Power Plants
– Nuclear Power Plants
– Renewable Energy
Chemical Processing– Pharmaceutical Industry
– Agrochemicals and Fertilizers
– Specialty Chemicals
Aerospace and Defense– Aircraft Engines
– Gas Turbines
– Defense Equipment
Marine and Offshore Industry– Offshore Oil and Gas
– Shipbuilding
– Desalination Plants
Heat Exchangers and Boiler Systems– Heat Exchangers
– Boiler Systems
Environmental and Waste Treatment– Wastewater Treatment Plants
– Air Pollution Control Systems
Incoloy Flange Manufacturer With Rich Grades
  • Incoloy 800 (UNS N08800, EN 1.4876)
  • Incoloy 800H (UNS N08810, EN 1.4958)
  • Incoloy 800HT (N08811, EN 1.4959)
  • Incoloy 825 (UNS N08825, EN 2.4858)
  • Incoloy 925 (UNS N09925)
  • Incoloy 926 (UNS N08926, EN 1.4529)
  • Incoloy 330 (UNS N08330, EN 1.4886)
  • Incoloy 20 (UNS N08020, EN 2.4660)
  • Incoloy 25-6HN (UNS N08367, EN 1.4562)
  • Incoloy A-286 (UNS S66286, EN 1.4980)
ASMEASME B16.5, ASME B16.47, ASME B16.36, ASME B16.48, ASME B16.9
Parameters Of Incoloy Steel Flanges
Chemical CompositionIncoloy 800Incoloy 825
Nickel (Ni)30.0 – 35.0%38.0 – 46.0%
Chromium (Cr)19.0 – 23.0%19.5 – 23.5%
Iron (Fe)39.5% min22.0% min
Aluminum (Al)0.15 – 0.60%
Molybdenum (Mo)2.5 – 3.5%
Mechanical PropertiesIncoloy 800Incoloy 825
Tensile Strength (MPa)520 – 690550 – 750
Yield Strength (MPa)210 – 550220 – 550
Elongation (%)30 min30 min
Hardness (HRC)20 max20 max
Physical PropertiesIncoloy 800Incoloy 825
Density (g/cm³)7.948.14
Melting Range (°C)1350 – 14001370 – 1400
Thermal Conductivity (W/m·K)13.911.4
Specific Heat Capacity (J/kg·K)460440
Electrical Resistivity (μΩ·cm)0.951.05

What Is Incoloy Flanges?

The material of Incoloy flange is mainly composed of nickel, chromium and iron, of which the nickel content is as high as more than 30%, and the chromium content is about 19-23%, which makes it have excellent corrosion resistance. This alloy material shows excellent corrosion resistance in acidic, alkaline, salt water and various chemical media, and can effectively resist corrosion and oxidation.

One of the main advantages of Incoloy flanges over traditional stainless steel flanges is their excellent performance in extreme environments. For example, Incoloy 825 flanges have a balanced composition of nickel, iron and chromium as well as molybdenum and copper, and have excellent resistance to both general corrosion and localized corrosion. They are particularly effective in handling sulfuric and phosphoric acid as well as seawater and salt water, which makes them the first choice for marine and offshore applications. On the other hand, Incoloy 800H and 800HT flanges are designed for high-temperature applications, offering excellent structural stability and resistance to oxidation and carburization at temperatures up to 1100°C (2000°F).

Why Choose Gnee Incoloy Flanges Manufacturer?

Gnee, as a Chinese stainless steel & nickel alloy supplier with 15 years of history, exports to 60+ countries. We provide various shapes of stainless steel & nickel alloy, including plates, coils, pipes, bars, and fittings. Gnee is committed to providing comprehensive stainless steel solutions, with excellent after-sales service, we support customization and ensure product quality.

In addition, our steel plate has been successfully exported to more than 60 countries such as Singapore, Malaysia, The United Arab Emirates, Oman, Turkey, Nigeria, Egypt, Kuwait, Indonesia, Qatar, and Kenya. Many regular customers come to visit our company and factory and make multiple orders.

What‘s The Feature Of Incoloy Flanges?

Incoloy flanges exhibit outstanding resistance to corrosion, especially in harsh environments such as chemical processing plants, offshore oil and gas platforms, and marine applications. They are highly resistant to corrosion caused by acids, alkalis, chloride ions, and oxidizing agents.

Incoloy flanges offer excellent strength and stability at elevated temperatures. They can maintain their mechanical properties and structural integrity even under prolonged exposure to high temperatures, making them suitable for applications in heat exchangers, boilers, and thermal power plants.

Incoloy flanges have a high resistance to oxidation, even at elevated temperatures. This property allows them to withstand the formation of oxide scales when exposed to air or oxygen, ensuring long-term performance and preventing degradation due to oxidation.

Incoloy flanges possess desirable mechanical properties, including high tensile strength, yield strength, and hardness. These properties contribute to their ability to withstand high-pressure and high-stress environments, ensuring reliable and leak-free connections.

Incoloy flanges offer good weldability, allowing for easy fabrication and installation. They can be welded using various techniques such as TIG (Tungsten Inert Gas) welding, MIG (Metal Inert Gas) welding, and shielded metal arc welding, providing flexibility in manufacturing and construction processes.

Incoloy flanges are manufactured with precise dimensional accuracy, ensuring proper fit and alignment during installation. This feature enables easy assembly and connection with pipes, valves, and other equipment, minimizing the risk of leakage or misalignment.

What Services Does Gnee Provide?

Gnee can provide the following measurement services for stainless steel:

Dimensional Measurement: Measure dimensional parameters such as length, width and thickness by measuring instruments to ensure that the stainless steel is qualified and meets the design requirements.
Surface Measurement: Measure parameters such as flatness, bumpiness and surface roughness of the stainless steel surface to help ensure that the quality and surface condition of the stainless steel meets the requirements.
Thickness Measurement: Use thickness gauges to accurately measure the thickness of the stainless steel to ensure it meets the design requirements.
Material Measurement: Use material analysis instruments to measure the chemical composition and mechanical properties of the stainless steel to ensure that the quality and properties of the stainless steel meet the requirements.
Bending And Deformation Measurements: Use tools such as bending gauges and displacement sensors to measure and monitor the degree of bending and deformation of stainless steel to ensure that it is within the allowable range.

Ask Measurement service

Gnee can customize the size and shape of your stainless steel for your specific project needs. Custom design of stainless steel is carried out by a team of professional engineers and designers. Based on the project requirements and constraints, they will use calculation and simulation tools combined with experience and technical knowledge to optimize the stainless steel design to meet the specific needs of your different projects

● Adjustment of the thickness, width and length of stainless steel based on load calculations and strength requirements for structural design.
● The shape of the stainless steel can be designed according to the demand characteristics.
● If the convenience of installation and maintenance is considered, we can also add openings and passages for easy access and operation in the design for areas that require frequent maintenance.

Ask Customized Services

Sourcing Gnee stainless steel can provide the following further processing services. We can customize to meet the specific needs of our customers for different projects.

Cutting Service: Stainless steel can be custom cut to obtain the desired shape and size according to the customer’s needs. For example, flame cutting, plasma cutting, laser cutting, etc., can cut stainless steel into desired plates, blocks, shaped pieces, etc.
Bending & Forming: Stainless steel is bent and formed by applying stress and appropriate processes to obtain the desired shape.
Welding Services: Stainless steel can be subjected to various types of welding services, including manual arc welding, gas-shielded welding, laser welding, etc.
Hole Turning And Machining: Stainless steel is turned and holes are machined through the use of machining equipment. These processes produce smooth surfaces, precise holes and threads to meet specific assembly requirements.
Surface Treatments: Surface treatments can be applied to improve the corrosion resistance and aesthetics of the stainless steel. This includes methods such as painting, hot dip galvanizing, and electroplating to add a protective layer and provide corrosion resistance.

Ask Deep Processing Services

Gnee stainless steel can provide testing and the following third-party inspection services. These third-party testing services provide independent and objective verification of stainless steel’s compliance with relevant standards and regulations.

Mechanical Property Testing: Used to determine whether the strength, toughness, ductility and other mechanical properties of stainless steel meet the specified requirements.
Chemical Composition Analysis: Quantitative determination of elements on stainless steel samples through spectral analysis, atomic absorption spectroscopy, inductive coupling and other technologies.
Corrosion Performance Test: Common corrosion performance test methods include salt spray corrosion test, acid-base corrosion test and electrochemical corrosion test.
Tensile Strength Test: Through the tensile test, the parameters such as yield strength, tensile strength and breaking strength of stainless steel during the tensile process are measured.
Non-Destructive Testing: Non-destructive testing is used to evaluate hidden defects, cracks and looseness in stainless steel materials. Common methods include ultrasonic testing, magnetic particle testing, eddy current testing, and radiographic testing.
Pressure Test: By exposing stainless steel products to a specific pressure, it is tested whether there are problems such as leakage or deformation to ensure that its pressure resistance meets the requirements.
Surface Quality Test: Used to evaluate the surface flatness, smoothness and oxide layer of stainless steel products.
Welding Performance Test: Check the appearance, mechanical properties and metallographic microstructure of the weld to ensure that the quality of the stainless steel welded joint meets the requirements.
Metallographic Inspection: Through metallographic inspection, the structure, grain size, non-metallic inclusions, etc. of stainless steel are checked to evaluate its quality and performance.

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