A335 P23 Seamless Pipe

A335 P23 is a seamless pipe made from an alloy steel designed for high-temperature and high-pressure applications. It belongs to the ASTM A335 standard, which covers seamless ferritic alloy-steel pipe for high-temperature service.

A335 P23 Seamless Pipe: Product Description
**1. Material Composition:

Alloy Steel: A335 P23 is a chromium-molybdenum alloy steel, providing excellent resistance to high temperatures and pressures.
Chemical Composition:
Carbon (C): 0.05-0.15%
Manganese (Mn): 0.30-0.60%
Silicon (Si): 0.50-0.80%
Chromium (Cr): 2.25-2.75%
Molybdenum (Mo): 1.00-1.20%
Others: Contains trace amounts of sulfur, phosphorus, and other elements as per ASTM specifications.
**2. Specifications:

Standard: ASTM A335
Grade: P23
Type: Seamless pipe
Size Range: Generally available from 1/2 inch to 24 inches in diameter, but custom sizes can be produced.
Wall Thickness: Varies from Schedule 10 to Schedule 160, depending on application needs.
**3. Properties:

Temperature Resistance: Designed to operate effectively at temperatures up to around 650°C (1200°F), suitable for high-temperature service.
Mechanical Properties:
Tensile Strength: Minimum of 415 MPa (60,000 psi)
Yield Strength: Minimum of 205 MPa (30,000 psi)
Elongation: Typically around 20% in 50 mm (2 inches) for elongation.
Corrosion Resistance: Provides good resistance to oxidation and corrosion at high temperatures, making it suitable for demanding applications.
**4. Applications:

Power Generation: Ideal for use in steam lines, superheaters, and other high-temperature systems in power generation plants.
Petrochemical Industry: Used in high-pressure and high-temperature environments such as refining processes.
Chemical Processing: Suitable for applications involving high temperatures and aggressive chemicals.
**5. Manufacturing Process:

Production: Produced using seamless manufacturing methods to ensure high strength and uniformity. The process includes heating, piercing, and extruding the alloy into the desired shape and size.
**6. Standards & Certification:

Testing: Pipes undergo comprehensive testing including hydrostatic tests, mechanical tests, and chemical composition tests to meet ASTM A335 P23 standards.
Certification: Comes with mill test certificates and can be certified according to international standards or customer specifications.
**7. Delivery & Packaging:

Delivery Condition: Typically supplied in standard lengths, but custom lengths can be arranged as needed.
Packaging: Pipes are usually bundled, wrapped in protective material, and delivered in standard or custom packaging based on customer requirements.
**8. Additional Information:

Heat Treatment: Pipes may undergo heat treatment processes like normalizing or tempering to enhance their mechanical properties.
Inspection: Includes visual, ultrasonic, and radiographic testing to ensure the pipe meets all quality and compliance standards.
If you have more specific requirements or need additional details about A335 P23 seamless pipes, feel free to ask!