Introducing ASME B16.28 ASTM A234-WPB galvanized 90° SR elbow

Haihao Group recently completed an order for a domestic client, producing a batch of ASME B16.28 90° short radius (SR) Elbows. These elbows are manufactured using ASTM A234-WPB material and are galvanized for enhanced corrosion resistance. They feature a welded butt-weld (BW) end connection, and the order included three sizes: DN200, DN300, and DN500. All elbows in this order were produced as seamless, ensuring high strength and reliability for demanding applications.

1.Product Details and Specifications

The ASME B16.28 standard covers short-radius butt-welding elbows used in piping systems. The 90° SR elbow has a radius equal to the nominal pipe size, making it suitable for tight spaces where sharp direction changes are required. The dimensions for the DN200, DN300, and DN500 elbows comply with the standard, ensuring compatibility and easy integration into the client’s system.

Material: ASTM A234-WPB-W

Type: 90° Short Radius Elbow

Sizes: DN200, DN300, DN500

End Connection: Welded Butt-Weld (BW)

Surface Finish: Galvanized for enhanced durability and corrosion protection

2.Material Characteristics

ASTM A234-WPB is a common grade for carbon steel pipe fittings, known for its good weldability and mechanical strength. It is suitable for moderate to high-temperature service. Galvanization adds a layer of zinc coating, which provides excellent resistance to rust and corrosion, making these elbows ideal for use in environments prone to moisture and chemical exposure.

3.Advantages of Seamless Elbows

The seamless construction of these elbows provides superior performance compared to welded counterparts. Without any weld seam, the risk of leaks or structural weaknesses is minimized, which is especially crucial for high-pressure or critical systems. The seamless manufacturing process ensures uniformity in thickness and improved mechanical properties.

4.Applications of Galvanized 90° SR Elbows

These elbows are designed to change the direction of flow in pipelines while maintaining structural integrity. The galvanized coating makes them suitable for:

Water Supply Systems: To prevent rust in pipelines carrying potable or process water

Industrial Piping: In plants where corrosion resistance is a necessity

HVAC Systems: For directing air or fluid flow efficiently

Construction Projects: As part of plumbing or structural framework

Haihao Group’s production of the ASME B16.28 ASTM A234-WPB galvanized welded BW 90° SR elbows in sizes DN200, DN300, and DN500 highlights our commitment to delivering high-quality, seamless pipe fittings. The combination of robust material and a protective galvanized layer ensures that these elbows will provide long-lasting, reliable performance for our client’s projects.