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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 Successfully Delivers JIS G3454 STPG 370 Seamless Steel Pipe to Russian Customer

Haihao Group has recently completed the production and shipment of a JIS G3454 seamless pipe order for a valued customer in Russia. Manufactured according to the customer’s technical specifications, the seamless carbon steel pipe is intended for industrial piping applications where dimensional accuracy, reliable mechanical performance, and stable material quality are essential.

This delivery once again demonstrates Haihao Group’s ability to provide customized pipeline products that comply with international standards while meeting project schedules for overseas customers.

JIS G3454 STPG 370 seamless steel pipe ready for shipment

JIS G3454 STPG 370 seamless steel pipe ready for shipment

Order Details

The shipment includes the following product:

Product Specification
Product Seamless Steel Pipe
Standard JIS G3454
Material Grade STPG 370 (Equivalent to STPG 38 / Carbon Steel 20#)
Size 1-1/2B (48.6 × 5.1 mm)
Schedule SCH 80
Length 5 meters

Each pipe was manufactured with close attention to dimensional tolerance, surface condition, and wall thickness consistency to satisfy the customer’s engineering requirements.

Manufactured to JIS G3454 Requirements

The supplied JIS G3454 seamless pipe is produced for pressure service applications where dependable strength and durability are required. JIS G3454 is widely specified for carbon steel pipes used in machinery, industrial plants, utility systems, and general pressure piping.

The STPG 370 material provides an excellent balance of:

  • Stable mechanical properties
  • Good weldability
  • Reliable pressure resistance
  • Consistent dimensional accuracy
  • Long service life in industrial environments

Because of these characteristics, JIS G3454 seamless pipe continues to be a preferred choice for industrial projects throughout Asia, Europe, and the CIS region.

Strict Manufacturing and Quality Control

Every JIS G3454 seamless pipe supplied by Haihao Group undergoes comprehensive quality control throughout production.

Our inspection process includes:

  • Raw material verification
  • Outside diameter and wall thickness inspection
  • Length measurement
  • Surface quality examination
  • Visual inspection
  • Packaging verification before shipment

These quality procedures help ensure that every shipment complies with customer specifications before leaving our factory.

Supporting Industrial Projects Worldwide

Haihao Group has supplied seamless steel pipes, pipe fittings, flanges, and forged components to customers in Russia, Singapore, Malaysia, the UAE, Saudi Arabia, Indonesia, South Africa, Argentina, India, and many other international markets.

Whether customers require standard pipeline products or customized manufacturing according to drawings, our engineering and production teams provide complete support from quotation through final delivery.

With decades of manufacturing experience and modern production facilities, Haihao Group continues to supply reliable pipeline solutions for oil & gas, petrochemical, power generation, water treatment, and industrial infrastructure projects.

Looking for a Reliable Seamless Pipe Manufacturer?

If your project requires JIS G3454 seamless pipe, carbon steel pipes, or other pipeline components manufactured to international standards, Haihao Group is ready to help.

Our team can provide customized production, fast quotations, complete technical documentation, and dependable worldwide delivery to support your next pipeline project.

Contact Haihao Group today to discuss your project requirements and receive professional technical support.

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