Detailed information on Inconel 601/625 alloy sheets

Detailed information on Inconel 601/625 alloy sheets

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Detailed information on Inconel 601/625 alloy sheets

Inconel 601/625 alloy plates are high-performance nickel-based superalloys known for their exceptional strength, high-temperature resistance, and excellent corrosion resistance. In particular, the 625 alloy, due to its molybdenum and niobium content, exhibits outstanding resistance to pitting corrosion, crevice corrosion, and chloride stress corrosion cracking, making it ideal for aerospace, chemical, and marine applications. However, these alloys are expensive and difficult to process.

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What are the characteristics of Inconel 625 alloy?

Inconel 625 is a high-strength, corrosion-resistant nickel-chromium alloy known for its high strength at extreme temperatures (from cryogenic to 1800°F) and excellent resistance to pitting, crevice corrosion, and chloride stress corrosion cracking, as well as good machinability. These characteristics make it an ideal material for applications in marine, aerospace, and chemical industries. Key elements in the alloy include molybdenum and niobium, which contribute to its strength. Its properties include a density of 8.44 g/cm³, high tensile strength (e.g., approximately 880 MPa at room temperature), and good elongation. Its strength primarily derives from solid solution strengthening, rather than heat treatment.

 

Inconel 601 plate is a sheet material rolled from a nickel-chromium-iron-aluminum reinforced alloy (Inconel 601). Its core characteristic is its unparalleled resistance to oxidation, carburization, and high-temperature sulfur corrosion at extreme temperatures up to approximately 1250°C, while maintaining good formability and weldability. It is designed for demanding environments where sheet materials are exposed to severe oxidizing-reducing atmospheres and thermal cycling, such as high-temperature heat treatment furnaces, industrial combustion systems, petrochemical cracking units, and aerospace hot-end components. It is a key material for manufacturing ultra-high-temperature components such as furnace linings, radiant tubes, and high-temperature fixtures.

Inconel 625 plate is a nickel-chromium-based high-temperature alloy plate reinforced with molybdenum and niobium. Its core value lies in its comprehensive and superior corrosion resistance, effectively resisting pitting corrosion, crevice corrosion, chloride stress corrosion cracking, and oxidizing and reducing acid media, while also possessing excellent high-temperature strength (up to approximately 980°C) and creep resistance. It provides reliable solutions for applications in marine engineering, demanding chemical processing, flue gas desulfurization systems, and aerospace, where sheet materials are required as structural components, containers, or linings in extreme corrosive and high-temperature environments. It is a top-tier engineering material with superior overall performance compared to Inconel 600 plate.

Specification of Inconel 601, 625 Sheets

Specifications : ASTM B168 / ASME SB168, AMS 5540

Dimensions : ASTM, ASME, and API

Inconel Sheet : thickness range from .008" to .0125"

Inconel Plate : thickness ranges from .0125" to 5.00"

Size : 15NB to 150NB In

Tempers : Annealed, 1/4, 1/2 Hard, 3/4 Hard, Full Hard

Hardness : Soft, Hard, Half Hard, Quarter Hard, Spring Hard etc.

Form : Coils, Foils, Rolls, Plain Sheet, Strip, Flats, Blank (Circle), Ring (Flange) etc.

Equivalent grades of 601/625 Inconel alloy plates

Chemical composition of Inconel 601/625 plates

Mechanical properties of Inconel 601/625 alloy plates

Main Differences and Comparison between Inconel 601 Plate and Alloy 625 Plate
Oxidation Resistance: 601 plate generally performs better at extremely high temperatures; 625 plate offers excellent performance, but may have limitations around 1800°F (982°C).
Strength: 625 plate is generally stronger, especially in terms of creep resistance.
Corrosion Resistance: 625 plate offers superior broad-spectrum corrosion resistance (acid and seawater resistance).
Cost/Machinability: 625 plate is typically more expensive and more difficult to machine.

Plate Forms and Specifications
Available in hot-rolled (HR) or cold-rolled (CR) plates.
Various tests can be performed (hardness, tensile strength, chemical composition).

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.

 

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