Haihao Group Supplies BS 4504 and ANSI B16.5 Carbon Steel Flanges to Qatar for Industrial Pipeline Project

Haihao Group has successfully completed the production and shipment of a batch of carbon steel forged flanges for a customer in Qatar. The order includes multiple flange types such as BS 4504 slip-on flanges, threaded flanges, and blind flanges, as well as ANSI B16.5 Class 300 blind flanges, all manufactured from ASTM A105 carbon steel.

These flanges are designed for industrial pipeline systems operating under PN16 and Class 300 pressure ratings, ensuring reliable sealing and strong mechanical performance. By meeting both BS 4504 and ANSI B16.5 standards, the products can be used in a wide range of pipeline projects across the Middle East and international markets.

Order Details of Carbon Steel Flanges

The Qatar client ordered several flange types with different sizes and pressure ratings to support their pipeline installation requirements.

BS 4504 Carbon Steel Slip-On Flanges (PN16)

The order includes multiple PN16 slip-on raised face (SORF) flanges manufactured according to BS 4504.

Specifications include:

• 3″ Carbon Steel Slip-On Flange PN16 – ASTM A105

• 8″ Carbon Steel Slip-On Flange PN16 – ASTM A105

• 10″ Carbon Steel Slip-On Flange PN16 – ASTM A105

• 16″ Carbon Steel Slip-On Flange PN16 – ASTM A105

These BS 4504 PN16 slip-on flanges are widely used in water treatment, oil and gas pipelines, and industrial fluid transportation systems due to their simple installation and reliable sealing performance.

BS 4504 Carbon Steel Threaded Flanges

The shipment also includes threaded raised face flanges with BSPT threads, suitable for pipelines where welding is not preferred.

Specifications:

• 3″ Threaded Flange PN16 – BSPT Thread

• 4″ Threaded Flange PN16 – BSPT Thread

• Material: ASTM A105 Carbon Steel

• Standard: BS 4504

These BS 4504 threaded flanges are commonly used in low to medium pressure piping systems, offering easy installation and convenient maintenance.

BS 4504 Carbon Steel Blind Flanges

To seal pipeline ends or isolate sections of piping systems, the order also includes BS 4504 blind flanges PN16.

Sizes supplied:

• 8″ Blind Flange PN16 – ASTM A105

• 12″ Blind Flange PN16 – ASTM A105

Blind flanges are essential components for pipeline testing, maintenance, and temporary closures.

ANSI B16.5 Class 300 Blind Flanges

In addition to BS standard flanges, the project also requires high-pressure blind flanges manufactured according to ANSI B16.5.

Specifications:

• 10″ Blind Flange – Class 300 RF

• 12″ Blind Flange – Class 300 RF

• Material: ASTM A105 Carbon Steel

• Standard: ANSI B16.5

These Class 300 forged blind flanges provide strong sealing capability for high-pressure industrial piping systems.

Advantages of Forged Carbon Steel Flanges

The forged carbon steel flanges supplied by Haihao Group provide several advantages for industrial pipeline projects.

Strong Mechanical Performance

Forged ASTM A105 carbon steel flanges provide excellent strength and durability for demanding applications.

Reliable Sealing Performance

Raised face (RF) flanges ensure tight sealing when used with appropriate gaskets.

Compliance with International Standards

Manufacturing according to BS 4504 and ANSI B16.5 ensures compatibility with global piping systems.

Versatile Pipeline Applications

Different flange types—including slip-on, threaded, and blind flanges—offer flexibility for various pipeline configurations.

Applications of Industrial Flanges

These carbon steel flanges supplied to Qatar can be used in many industrial sectors, including:

• Oil and gas pipeline systems
• Petrochemical and refinery facilities
• Water treatment plants
• Power generation systems
• Industrial process piping

Their durability and standardized design make them essential components in reliable pipeline connections.

Haihao Group – Reliable Global Flange Manufacturer

Haihao Group is a professional manufacturer and exporter of industrial flanges, steel pipes, pipe fittings, and forged components. With advanced production facilities and strict quality control systems, we supply high-quality pipeline products that meet international standards such as ASME, ASTM, EN, DIN, and BS.

Our products are widely used in Middle East oil and gas projects, industrial pipelines, and infrastructure systems.

If you are looking for a trusted carbon steel flange supplier for international pipeline projects, Haihao Group is ready to provide professional service and reliable products.