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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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ASME B16.11 concentric reducer (SWAGE) ASTM A815 UNS S31803 delivered to Singapore client


Haihao Group is proud to announce the successful production of a batch of ASME B16.11 concentric reducer nipple (SWAGE) ASTM A815 UNS S31803 for a valued client in Singapore. These products are specifically designed for high-demand industrial environments, showcasing Haihao Group’s commitment to quality and precision manufacturing.

ASME B16.11 concentric reducer swage nipples ASTM A815 UNS S31803

ASME B16.11 concentric reducer swage nipples ASTM A815 UNS S31803

The products in this order are made from duplex stainless steel ASTM A815 UNS S31803, renowned for its exceptional strength and outstanding corrosion resistance. This material is widely used in the chemical, marine engineering, and oil and gas industries, excelling in environments with high chlorides and high stress. The product dimensions include a large end of 3″ (Schedule 10S) and a small end of 1 1/2″ (Schedule 40S). The large end features a bevel end (BE) design conforming to ASME B16.25, while the small end is plain end (PE). These reducers are manufactured in strict compliance with ASME B16.11 and MSS SP-95 standards, ensuring precise dimensions and reliable performance. The concentric design ensures smooth fluid transition, reducing turbulence and optimizing flow efficiency.

To guarantee quality, Haihao Group implemented stringent quality control processes, including precise dimensional measurements and material tests to verify compliance with ASTM A815 UNS S31803 chemical composition and mechanical properties. Each product underwent thorough inspections before shipment to ensure they meet both client expectations and industry standards.

ASME B16.11 concentric reducer swage nipple ASTM A815 UNS S31803

ASME B16.11 concentric reducer swage nipple ASTM A815 UNS S31803

This batch of concentric reducer nipple (SWAGE) is ideal for applications in oil and gas pipelines, chemical and petrochemical processing systems, as well as marine and offshore engineering projects. It is particularly suited for pipeline systems requiring high corrosion resistance and strength. As a global leader in piping solutions, Haihao Group is dedicated to providing high-quality products and services to our clients. For more information about our products, feel free to contact us! Email:sales@haihaogroup.com

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