Haihao Group Delivers ASTM A420 WPL6 Butt Weld Fittings to Poland for Industrial Piping Project

Haihao Group has completed the production and delivery of a batch of ASME B16.9 ASTM A420 WPL6 fittings for a customer in Poland. The order includes concentric reducers, eccentric reducers, equal tees, and reducing tees manufactured for low-temperature pressure piping applications.

The supplied fittings were produced according to ASME B16.9 butt weld fitting requirements and made from ASTM A420 Grade WPL6 material, which is widely used for piping systems requiring reliable mechanical performance under low-temperature service conditions.

This project covers a wide range of sizes and configurations, including reducer sizes from 2″ × 3/4″ to 20″ × 14″, tee fittings from 3/4″ to 16″, and wall thicknesses ranging from 3.91 mm to 12.70 mm. Both standard welded and seamless butt weld configurations were included according to customer requirements.

Project Overview of ASTM A420 WPL6 Pipe Fittings

The Poland customer required a complete range of carbon steel butt weld fittings for pipeline installation. Haihao Group supplied different types of fittings to meet various connection and flow control requirements.

The main products included:

• Concentric reducers for balanced pipeline diameter transitions
• Eccentric reducers for applications requiring flat-bottom or flat-top alignment
• Equal tees for branch connections with the same diameter
• Reducing tees for connecting different pipeline sizes

The detailed supply range is shown below:

Manufacturing Details of WPL6 Butt Weld Fittings

The supplied ASTM A420 WPL6 fittings were manufactured for applications where dimensional accuracy and reliable welding performance are essential.

ASTM A420 WPL6 is a low-temperature carbon steel fitting material commonly selected for pressure piping systems due to its good toughness and impact resistance. Combined with the ASME B16.9 standard, these fittings provide consistent dimensions for field welding and pipeline assembly.

During production, Haihao Group controlled key manufacturing processes, including:

• Raw material inspection and identification
• Forming process control
• End bevel preparation
• Dimensional measurement
• Surface quality inspection
• Final verification before shipment

The reducers and tees were produced with accurate wall thickness control, including various specifications such as:

• 91 mm
• 55 mm
• 49 mm
• 02 mm
• 11 mm
• 18 mm
• 53 mm
• 70 mm

These requirements ensure the fittings can be installed smoothly with matching pipeline systems.

ASTM A420 WPL6 butt weld fittings manufactured by Haihao Group

Applications of ASTM A420 WPL6 Fittings

The delivered ASME B16.9 ASTM A420 WPL6 fittings are suitable for a variety of industrial pipeline systems, including:

• Oil and gas transportation
• Petrochemical plants
• LNG and low-temperature piping
• Power generation facilities
• Chemical processing systems
• Industrial pressure pipelines

Concentric reducers are mainly used where the pipeline centerline needs to remain aligned, while eccentric reducers are preferred in systems requiring drainage control or avoiding air accumulation.

Equal tees and reducing tees provide flexible solutions for branch pipeline connections, helping engineers design efficient and reliable piping layouts.

Quality Control and International Delivery

Before shipment to Poland, Haihao Group performed comprehensive quality inspections according to project requirements.

The inspection process included:

• Material grade confirmation
• Dimensional inspection according to ASME B16.9
• Wall thickness measurement
• Visual inspection
• Welding end inspection
• Documentation review

Each batch of ASTM A420 WPL6 butt weld fittings was prepared with complete quality records to support customer installation and project traceability.

Haihao Group – Professional Manufacturer of Industrial Pipe Fittings

With more than 40 years of experience in manufacturing pipe fittings and pipeline products, Haihao Group supplies elbows, tees, reducers, flanges, and customized piping components for customers worldwide.

From standard production to project-specific requirements, Haihao Group provides reliable solutions based on international standards including ASME, ASTM, EN, and DIN.

This shipment of ASTM A420 WPL6 fittings to Poland demonstrates Haihao Group’s capability to manufacture and supply high-quality butt weld fittings for demanding industrial applications.

For your next pipeline project, contact Haihao Group for technical support and quotation on carbon steel and alloy steel pipe fittings.