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hebeihaihao

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 Delivers ASTM A335 P22 Seamless Steel Pipes for Energy Projects in Indonesia

Haihao Group is proud to announce the successful delivery of ASTM A335 P22 seamless steel pipes to a valued customer in Indonesia. These alloy steel pipes will be used in critical energy and petrochemical projects, where reliability under high temperature and pressure is essential. This shipment reflects our commitment to supporting global clients with durable piping solutions that meet international standards.

ASTM A335 P22 seamless steel pipes ready for shipment from Haihao Group

ASTM A335 P22 seamless steel pipes ready for shipment from Haihao Group

Product Details

The shipment included high-performance seamless steel pipes tailored to demanding industrial needs:

  • Type: Seamless steel pipe
  • Size: 8″ (219.1mm)
  • Wall Thickness: 31.75mm
  • Material Grade: ASTM A/SA335 P22 alloy steel
  • End Type: Beveled Ends (BE)
  • Length: 6 meters
  • Testing: Positive Material Identification (PMI) to verify alloy composition
  • Tolerances: Wall thickness ±10%, Length ±5mm
  • Surface Treatment: Black paint for corrosion resistance
  • Packaging: Secure wooden cases to ensure safe delivery

Each pipe is designed with precision wall thickness and strict dimensional tolerances, enabling safe operation in high-pressure, high-temperature environments.

Applications Across Key Industries

ASTM A335 P22 seamless steel pipes are widely recognized for their excellent creep resistance, mechanical strength, and long-term durability. The pipes supplied to Indonesia will be applied in:

  • Power generation plants – Used for superheater and reheater tubes, handling high-temperature steam without creep failure.
  • Petrochemical and refinery projects – Providing oxidation and corrosion resistance under elevated service conditions.
  • Boiler and pressure vessel piping systems – Ensuring safe operation under sustained high pressure.
  • Energy and process industries – Delivering long-term reliability where material performance is critical.

By supplying these alloy steel pipes, Haihao Group strengthens the infrastructure of Indonesia’s energy sector, ensuring efficient and safe pipeline systems.

Commitment to Quality and Service

Every pipe underwent PMI testing to guarantee the correct alloy grade, supported by strict inspection of wall thickness and dimensional tolerances. With black paint coating and protective wooden case packaging, the shipment was delivered safely and ready for installation.

As a trusted seamless pipe supplier, Haihao Group combines advanced manufacturing technology with strict quality control to provide alloy steel pipes that meet ASME, ASTM, and international standards.

Why Choose Haihao Group

  • Decades of expertise in seamless steel pipes, alloy steel pipes, and boiler piping products
  • Compliance with ASTM, ASME, and EN standards for global energy projects
  • Professional solutions tailored for power, refinery, and petrochemical industries
  • Reliable global supply capacity with on-time delivery

For project-specific inquiries or customized seamless pipe solutions, contact Haihao Group today. Our team is ready to provide high-quality piping products that meet the needs of your projects worldwide.

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