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Hebei haihao high pressure flange & pipe fitting group was established in 1982, located in Mengcun County the hometown of pipe fittings in China.


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Haihao Group Supplies ASTM A335 P22 Seamless Steel Pipe for Russian Industrial Project

As a trusted manufacturer and exporter of industrial piping products, Haihao Group recently completed the shipment of a batch of ASTM A335 P22 seamless steel pipe SCH160 for a customer in Russia. The order was produced according to strict international standards and included additional low-temperature impact testing requirements to ensure reliable performance in demanding operating environments.

The supplied seamless steel pipes are widely used in high-temperature and high-pressure systems such as power plants, petrochemical facilities, refineries, and industrial boiler projects. With extensive experience in alloy steel pipe manufacturing and export logistics, Haihao Group continues to support global customers with dependable piping solutions and professional technical service.

ASTM A335 P22 seamless steel pipe SCH160 ready for shipment

ASTM A335 P22 seamless steel pipe SCH160 ready for shipment

Product Details of the Shipment

Product Size Material Standard Additional Requirements Packaging
Seamless Steel Pipe 3″ SCH160 ASTM A335 GR.P22 ASME B36.10 -20°C impact test, hydrostatic test Plastic caps

The project required heavy-wall alloy steel pipes capable of operating under elevated temperature and pressure conditions. To meet the customer’s technical specifications, Haihao Group arranged strict inspection procedures before shipment.

If you’d like to learn more about size standards for pipe fittings, flanges, and steel pipes, please click here.

Why ASTM A335 P22 Seamless Steel Pipe Is Widely Used

The ASTM A335 P22 seamless steel pipe SCH160 supplied for this project is manufactured from chromium-molybdenum alloy steel. P22 material offers excellent resistance to heat, pressure, oxidation, and creep deformation, making it ideal for critical industrial piping systems.

Key Advantages of ASTM A335 P22 Pipes

  • Excellent high-temperature strength
  • Reliable creep resistance for long-term service
  • Good corrosion and oxidation resistance
  • Suitable for refinery and power plant applications
  • Strong performance under high-pressure conditions

Compared with ordinary carbon steel pipes, P22 alloy steel pipes provide longer service life in severe environments where temperature fluctuations and pressure loads are common.

Strict Inspection for Russian Project Requirements

For this shipment, the Russian customer specified additional testing requirements beyond standard manufacturing procedures. Haihao Group completed the following inspections before delivery:

-20°C Low-Temperature Impact Test

Low-temperature impact testing helps verify the toughness and structural integrity of the pipe material in cold climates. This is especially important for projects operating in northern regions or winter conditions.

Hydrostatic Pressure Test

Each pipe underwent hydrostatic testing to confirm pressure resistance and leak-tight performance. This ensures the piping system remains safe during operation.

Dimensional and Surface Inspection

The pipes were also checked for:

  • Wall thickness accuracy
  • Outer diameter tolerance
  • Straightness
  • Surface quality
  • End protection and marking

These quality control procedures help ensure the products comply with international project standards and customer expectations.

Applications of ASTM A335 P22 Seamless Steel Pipe

The ASTM A335 P22 seamless steel pipe SCH160 delivered by Haihao Group is commonly used in:

  • Thermal power plants
  • Petrochemical processing systems
  • Oil and gas transmission pipelines
  • High-pressure steam pipelines
  • Boiler superheater systems
  • Heat exchanger piping

Because of its alloy composition and heavy-wall SCH160 design, this pipe is especially suitable for harsh industrial service conditions.

Haihao Group’s Manufacturing and Export Capabilities

Haihao Group has many years of experience supplying seamless steel pipes, pipe fittings, and flanges to customers worldwide. Our manufacturing and inspection processes comply with international standards including ASTM, ASME, EN, DIN, and GOST requirements.

Products We Supply

  • Seamless steel pipes
  • Alloy steel pipes
  • Butt weld fittings
  • Forged fittings
  • Industrial flanges
  • Special piping components

Materials Available

  • ASTM A106
  • ASTM A53
  • ASTM A335 P11/P22/P91
  • ASTM A312 stainless steel grades
  • Duplex and super duplex stainless steel

International Export Experience

Haihao Group regularly exports products to:

  • Russia
  • Southeast Asia
  • Europe
  • Middle East
  • South America

Our team understands international project specifications, documentation requirements, and logistics coordination for industrial piping projects.

Reliable Packaging and Delivery

To prevent damage during transportation, plastic caps were installed on both ends of the seamless steel pipes. Proper packaging helps protect the pipe ends, internal cleanliness, and threading condition during long-distance shipment.

Haihao Group also provides:

  • Custom marking
  • Wooden cases or bundles
  • Export-standard packaging
  • Third-party inspection support
  • Material test certificates (MTC)

Contact Haihao Group for Alloy Steel Pipe Solutions

If you are looking for a reliable supplier of ASTM A335 P22 seamless steel pipe SCH160, Haihao Group can provide customized solutions based on your project requirements. From raw material control to final inspection and export delivery, we focus on product quality, technical reliability, and customer satisfaction.

Our engineering and sales teams are ready to support your next piping project with competitive pricing and fast response service.

FAQ

What is ASTM A335 P22 seamless steel pipe used for?

ASTM A335 P22 seamless steel pipe is mainly used in high-temperature and high-pressure applications such as power plants, refineries, boilers, and petrochemical piping systems.

What does SCH160 mean for seamless steel pipe?

SCH160 refers to a heavy wall thickness schedule designed for higher pressure applications compared with STD or SCH40 pipes.

Why is P22 alloy steel suitable for high-temperature service?

P22 contains chromium and molybdenum, which improve heat resistance, creep strength, and oxidation resistance under elevated temperatures.

Can Haihao Group provide third-party inspection for seamless steel pipes?

Yes. Haihao Group can arrange third-party inspections such as SGS, BV, TUV, or customer-designated inspections before shipment.

Does Haihao Group export alloy steel pipes to Russia?

Yes. Haihao Group has extensive experience supplying alloy steel pipes and fittings to Russian industrial and energy projects.

Hebei Haihao Group

High Pressure Flange & Pipe Fitting

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