Differences between Inconel 601 forged pipe fittings and Incoloy 800 flanges
Differences between Inconel 601 forged pipe fittings and Incoloy 800 flanges
Inconel 601 fittings perform exceptionally well at extremely high temperatures (up to 1204°C), exhibiting superior oxidation and carburization resistance, making them ideal for furnace applications. Incoloy 800 flanges, on the other hand, offer excellent strength and resistance to hot acid corrosion (such as sulfuric/nitric acid) at slightly lower but still high temperatures (980-1150°C), making them more suitable for chemical processing applications. The main differences lie in their primary alloying elements (Inconel has a higher nickel content, while Incoloy has a higher iron content) and their specific corrosion resistance properties.
What are the differences between Inconel 601 and 602?
Inconel 601 has excellent oxidation resistance and tensile strength, making it suitable for high-temperature applications. In contrast, Inconel 602 has superior creep resistance and sulfidation resistance, making it an ideal choice for reducing environments.
What are Inconel 601 Forged Pipe Fittings?
Inconel 601 forged pipe fittings are made from a nickel-chromium alloy and possess extremely high heat and corrosion resistance. These fittings exhibit superior mechanical properties, making them ideal for high-temperature applications such as power plants and aircraft manufacturing. They have excellent thermal stability, capable of withstanding temperatures up to 2100°F without significant deformation or performance degradation. Furthermore, the exceptional strength of these forged fittings makes them ideal for harsh environments involving extreme pressure and high vibration.
What are Incoloy 800 Flanges?
Incoloy 800 flanges are pipe fittings used to connect two sections of pipe or terminate fluid flow. They are typically made from special alloy steels such as Incoloy 800 and possess unique characteristics such as excellent corrosion resistance, high strength, and outstanding thermal stability. These unique properties make them ideal for many industries, including petrochemical plants, refineries, power plants, chemical plants, and more. Additionally, they are more cost-effective compared to other pipe fittings because they can be reused multiple times without performance degradation.
Chemical Composition of Inconel 601 Forged Threaded Fittings
| Grade | C | Mn | Si | S | Cu | Fe | Ni | Cr | Al | Ti |
| Inconel 601 | 0.10 max | 1.0 max | 0.5 max | 0.015 max | 1.0 max | Balance | 58.0 – 63.0 | 21.0 – 25.0 | - | - |
Chemical Composition of Incoloy 800 Flanges
| Grade | C | Mn | Si | S | Cu | Fe | Ni | Cr | Al | Ti |
| Incoloy 800 | 0.10 max | 1.50 max | 1.00 max | 0.015 max | 0.75 max | 39.50 min | 30 – 35 | 19 – 23 | 0.15 – 0.60 | 0.15 – 0.60 |
Mechanical Properties of Inconel 601 Forged Fittings
| Grade | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Inconel 601 | 8.1 g/cm3 | 1411 °C (2571 °F) | Psi – 80,000 , MPa – 550 | Psi – 30,000 , MPa – 205 | 30 % |
Mechanical Properties of Incoloy 800 Flange
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 7.94 g/cm3 | 1385 °C (2525 °F) | Psi – 75,000 , MPa – 520 | Psi – 30,000 , MPa – 205 | 30 % |
Characteristics of Inconel 601 Forgings
Inconel 601 forgings are manufactured using a hot forging process and possess characteristics such as high strength, durability, and high dimensional accuracy. These forgings exhibit excellent resistance to thermal fatigue, high-temperature oxidation, and carburization, making them ideal for high-temperature gaseous environments. The most commonly used types of Inconel 601 forgings in industry include socket weld fittings, threaded fittings, and butt weld fittings. These fittings are widely used in power plants, chemical plants, and petrochemical facilities.
Characteristics of Incoloy 800 Flanges
Incoloy 800 flanges are used to connect piping systems, equipment, and vessels. Flanges are circular disc-shaped components with bolt holes that can be connected using bolts, nuts, and washers. Incoloy 800 flanges are resistant to high-temperature oxidation, carburization, and sulfidation, making them highly suitable for use in corrosive environments. The most commonly used types of Incoloy 800 flanges in industry include slip-on flanges, butt weld flanges, and socket weld flanges. These flanges are widely used in chemical plants, refineries, and power plants.
Summary of the main differences between Inconel 601 forged pipe fittings and Incoloy 800 flanges
Nickel content: Inconel 601 has a significantly higher nickel content (>50%), while Incoloy 800 has a higher iron content.
Maximum operating temperature: Inconel 601 has a higher oxidation resistance temperature limit.
Corrosion resistance: Inconel 601 performs excellently in high-temperature/oxidizing environments; Incoloy 800 is superior in resistance to hot acid corrosion.
Product form: Inconel 601 is typically used for pipe fittings connecting pipes; Incoloy 800 is typically used for flanges connecting equipment or pipes of different sizes/types.
Why Choose Gnee as Your Nickel-Based Alloy Supplier
✅ Over 18 years of export experience, products sold to more than 80 countries
✅ Certified by ISO, SGS, and BV
✅ Global inventory of Inconel, Hastelloy, Incoloy, and Monel alloy tubing, plates, and bars
✅ Custom processing services available – including cutting, polishing, CNC machining, and packaging
✅ Fast delivery within 7-15 days, supported by global logistics partners
📦 Packaging and Shipping
All stainless steel products are packaged using the following methods:
Wooden pallets or crates
Moisture-proof packaging
Labels with furnace number, standard, and size labels
Shipped worldwide by sea, air, or express
About Gnee Steel
Gnee Steel is a professional manufacturer of nickel-based alloys, including Nickel 201, Nickel 202, Hastelloy C-276, Hastelloy C-22, Hastelloy B, Hastelloy C-4, Inconel 600, Inconel 625, Inconel 718, Inconel X-750, Incoloy 800, Incoloy 800H/HT, Incoloy 825, Monel 400, Monel K500, and other high-temperature alloy materials. We specialize in the production and sales of alloy materials. Gnee Steel's products are widely used in aerospace, chemical, power generation, automotive, nuclear energy, and other fields, and we can provide customized alloy material solutions according to customer needs. For inquiries about alloy material prices or customized alloy material solutions, please feel free to contact us via email at ss@gneemetal.com for a quote.
Square Meters Built
Enterprise Employees
Years Experience
Partner countries
