Haihao Group Ships High-Performance UNS S31254 Pipe Caps to the UAE
Haihao Group is proud to announce the successful dispatch of a highly specialized order of butt welding pipe caps to a key client in the United Arab Emirates (UAE). This shipment underscores our capability to handle projects requiring advanced, corrosion-resistant materials and adherence to the strictest international standards.
Focus on Quality and Extreme Corrosion Resistance
The core product in this delivery is a seamless pipe cap designed for critical service applications. Unlike standard carbon steel fittings, these caps feature an exceptional material grade that is specified for environments where corrosion is a major threat.

Shipment of UNS S31254 254SMO 4 inch SCH 10S ASME B16.9 Seamless Pipe Caps for UAE Client
The precise specifications of the ordered pipe caps are as follows:
| Component | Specification Details |
| Product Name | Seamless Pipe Cap |
| Size | 4 inches (4”) |
| Wall Thickness | Schedule 10S (SCH 10S) |
| Material Grade | UNS S31254 (254SMO) |
| Standard | ASME B16.9 |
The Excellence of UNS S31254 (254SMO) Material
The choice of UNS S31254 pipe cap material is what truly sets this order apart. Often referred to by the trade name 254SMO, this is a highly alloyed stainless steel known for its outstanding resistance to pitting and crevice corrosion, especially in halide-containing environments such as seawater or high-chloride process streams.
This high-performance pipe cap material has a PREN (Pitting Resistance Equivalent Number) typically above 40, making it superior to conventional 300 series stainless steels. The butt welding pipe cap construction ensures structural integrity and a strong, leak-proof connection, critical for high-pressure and corrosive fluid systems common in the UAE’s oil & gas and desalination industries.
Adherence to ASME B16.9 and Seamless Construction
Every 4 inch seamless pipe cap in this shipment is manufactured in full compliance with the ASME B16.9 standard. This globally recognized specification governs the dimensions, tolerances, marking, and testing of factory-made wrought butt-welding fittings. The seamless manufacturing process, coupled with the thin-walled SCH 10S thickness, makes these caps ideal for systems requiring high flow rates, low weight, and impeccable internal surface quality.
Haihao Group: Your Trusted Global Partner
This successful export to the UAE demonstrates Haihao Group’s expertise as a trusted seamless butt welding pipe fittings supplier. We are equipped to source, manufacture, and deliver specialized materials like 254SMO pipe fittings for the most demanding global projects.
When your piping system demands the ultimate in corrosion resistance and reliability, rely on Haihao Group to provide ASME B16.9 high-alloy pipe caps that meet or exceed every technical requirement.

