ASTM A789/A789M Duplex Steel Seamless Tube Manufacturer

As a premier provider based in South Africa, Gerald and Son offers high-quality ASTM A789/A789M Duplex Steel Seamless Pipes designed for superior strength, durability, and resistance to corrosion. Our Duplex Steel Pipes are ideal for demanding applications across diverse industries.

Whether you operate in the oil and gas, chemical processing, or marine industries, our seamless pipes are engineered to meet the highest standards, ensuring unmatched reliability and performance under challenging conditions.

ASTM A789 / A789M Standard Specification

Standard: ASTMA789M/789

Material/Steel Grade: S31803, S32205, S32750

Application: Seamless Duplex Stainless Steel Tubing for General Service

Size: OD: 19.0~60.5mm WT: 1.2~5.0mm

Finish: Mill

Standard: ASTM A789M/789
Material/Steel Grade: S31803, S32205, S32750
Application: Seamless Duplex Stainless Steel Tubing for General Service
Size: OD: 19.0~60.5mm WT: 1.2~5.0mm
Finish: Mill

Contact Gerald and Son for ASTM A789/A789M Duplex Steel Seamless Pipes

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What Is ASTM A789 / A789M Standard Seamless Pipe?

ASTM A789/A789M standard seamless pipes are specifically designed for general service applications, especially in environments that demand high corrosion resistance and mechanical strength. These pipes are predominantly made of austenitic-ferritic duplex stainless steel, which combines the advantages of both austenitic and ferritic structures, offering superior performance in various industrial sectors.

Key Features of ASTM A789/A789M Duplex Stainless Steel Pipes:

  1. Corrosion Resistance: Duplex stainless steel has excellent resistance to a wide range of corrosive environments, including chlorides and sulfides, making it ideal for chemical, petrochemical, and marine industries.

  2. Mechanical Strength: The duplex structure of the material provides high strength and durability, making it suitable for high-pressure applications and harsh conditions.

  3. Versatility: These pipes can be used in various industries, including:

    • Chemical Processing: Safe handling of corrosive chemicals and solvents.
    • Petroleum & Natural Gas: Reliable for pipelines exposed to harsh environmental conditions.
    • Pharmaceuticals: Ideal for transporting sensitive materials in a contamination-free manner.

  4. Seamless Construction: The seamless manufacturing process ensures that the pipes have high strength, reliability, and uniformity, minimizing the risk of leaks and weaknesses.

  5. Long Service Life: Due to their high corrosion resistance and mechanical strength, ASTM A789/A789M pipes offer a longer lifespan, reducing maintenance costs and downtime.

Applications:

  • Transportation Pipelines: Used in industries where high corrosion resistance and strength are critical.
  • Heat Exchangers & Boilers: Provides excellent performance under high-temperature conditions.
  • Offshore Platforms & Marine Structures: Ideal for environments exposed to seawater and marine atmospheres.

Benefits:

  • High resistance to stress corrosion cracking and pitting.
  • Superior mechanical properties for durability and longevity.
  • Cost-effective in terms of maintenance and replacements.

If you need a reliable source of ASTM A789/A789M Duplex Steel Seamless Pipes for your project, look no further than Gerald and Son, your trusted supplier. Contact us for more information on pricing and availability.

ASTM A789/A789M VS ASTM A790/A790M

ASTM A789/A789M:
  • This standard covers the manufacturing requirements for stainless steel and other austenitic stainless steel straight and spiral seam pipes.
  • Pipes are typically used under general service conditions and are suitable for general corrosive environments and low or high-temperature service.
ASTM A790/A790M:
  • This standard covers the manufacturing requirements for duplex (austenitic-ferritic) stainless steel seamless and welded pipe.
  • Pipes are usually used in high-temperature, high-pressure, or corrosive environments with higher corrosion resistance and mechanical strength.

The key differences are the type of material and application area of the pipe. ASTM A789/A789M generally covers austenitic stainless steels and applications under general service conditions, while ASTM A790/A790M covers duplex stainless steels and more severe service environments and requirements. The choice of which standard to use depends on the specific project’s needs, including required pipe material properties, working environment conditions, and budget, among other factors. You can contact us directly to answer your questions.