ASTM A790/790M Duplex Steel Seamless Pipe Manufacturer

At Gerald and Son, we specialize in providing premium-quality ASTM A790/A790M Duplex Steel Seamless Pipes. Carefully engineered to offer outstanding strength, superior corrosion resistance, and unmatched durability, our Duplex Steel Pipes are the perfect solution for the most demanding environments.

Whether your industry is petrochemical, power generation, desalination, or any other high-performance sector, our seamless pipes are designed to meet the stringent requirements of ASTM A790/A790M standards, ensuring reliability and longevity in every application.

ASTM A790/790M Pipes

Standard: ASTM A790/790M
Material/Steel Grade: S31803, S32205, S32750
Application: Seamless Duplex Stainless Steel Tubing for General Service
Size: OD: 3/4″~10″
WT: SCH5S~SCH80S
Finish: Mill

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What Is ASTM A790/ A790M Standard Seamless Pipe?

ASTM A790/A790M is the industry benchmark for seamless and welded ferritic/austenitic stainless steel pipes, commonly known as duplex stainless steel pipes. This standard ensures pipes are suitable for general corrosive services, particularly emphasizing resistance to stress corrosion cracking, pitting, and crevice corrosion.

Key Features of ASTM A790/A790M Pipes

  1. Material Composition:

    • Made from duplex stainless steel with a balanced microstructure of austenite and ferrite.
    • Provides superior corrosion resistance and mechanical properties compared to standard austenitic grades.

  2. Seamless and Welded Options:

    • Offers manufacturing flexibility for a variety of applications.

  3. Corrosion Resistance:

    • Excels in environments with chlorides and sulfides, making it ideal for harsh and aggressive conditions.

  4. Mechanical Properties:

    • High yield strength and excellent impact toughness, suitable for demanding industrial environments.

Applications of ASTM A790/A790M Pipes

  1. Chemical Processing:

    • Efficiently handles corrosive chemicals, acids, and solvents.

  2. Oil and Gas:

    • Used in both onshore and offshore applications, where stress corrosion cracking resistance is crucial.

  3. Petrochemical Industry:

    • Ideal for high-temperature and chemically aggressive environments.

  4. Marine Industry:

    • Suitable for equipment exposed to seawater and marine atmospheres.

  5. Pulp and Paper:

    • Resists the corrosive chemicals used in processing operations.

Benefits of Using ASTM A790/A790M Pipes

  • High Strength:

    • The duplex structure provides twice the yield strength of conventional austenitic stainless steels.

  • Exceptional Corrosion Resistance:

    • Protects against pitting, crevice corrosion, and stress corrosion cracking.

  • Versatility:

    • Available in both seamless and welded forms, ensuring adaptability for various industrial requirements.

  • Durability:

    • Long-lasting performance reduces the need for frequent replacements, making it cost-effective in the long run.