Haihao Group recently completed the supply of a 1-inch ASTM A105N weld neck flange for an Iraqi customer. The order was specified for Class 150 service, raised face (RF), Schedule 160, and compliance with ASME B16.5 and NACE MR0175. This order is a good example of a small-diameter flange with a ...

In sub-arctic energy extraction and processing, ordinary carbon steel reaches its limit long before the thermometer hits its lowest point. As temperatures drop below -20°C, conventional flange materials risk micro-fissuring and catastrophic brittle failure under pressure fluctuations. Addressing ...

Haihao Group has completed manufacturing, full non-destructive testing, and export preparation for a specialized lot of heavy-duty duplex stainless steel flanges supplied to a leading energy operator in the United Arab Emirates. Engineered to deliver leak-proof metal-to-metal sealing under high ...

Haihao Group has completed manufacturing, precision machining, and export clearance for a specialized order of high-nickel nickel-chromium alloy spectacle blinds destined for a high-specification offshore processing facility in Singapore. Engineered to deliver 100% positive shut-off and absolute ...

Haihao Group has completed the dispatch of a high-yield forged flange consignment destined for an offshore production and topside processing expansion in Singapore. Built to ASME B16.5 dimensions, this shipment features 2″ Nominal Pipe Size (NPS) Class 600 Standard Wall (STD) Weld Neck Rai ...

Haihao Group has completed the dispatch of a high-specification flange cargo destined for an offshore and onshore gas handling expansion project in the United Arab Emirates (UAE). The shipment features a wide spectrum of pressure classes, ranging from Class 150 up to Class 1500, combining stainl ...

Haihao Group is preparing to meet customers, partners, and industry professionals at THE 12TH ALL CHINA – INTERNATIONAL TUBE & PIPE INDUSTRY TRADE FAIR in Shanghai. From September 21 to September 24, Haihao Group will exhibit together with Ganyeah Group and FNS Pipeline Technology Co., Ltd.  ...

Haihao Group has completed the production and dispatch of a critical shipment of high-yield carbon steel flanges for an offshore-linked pipeline project in the United Arab Emirates (UAE). The shipment consists of large-diameter Weld Neck (WN) and Blind flanges designed for high-stress, high-pres ...

Haihao Group has completed the supply of ASTM A694 F65 blind flanges for a customer in Singapore. The order includes 2″ and 3″ blind flanges in Class 600 pressure rating, manufactured to ASME B16.5 and supplied with rust preventive oil protection. Although a blind flange does not pro ...

Haihao Group has completed manufacturing and final dimensional verification for a dedicated order of flat face plate flanges destined for an industrial client in Australia. Designed for low-pressure water treatment, mining slurry lines, and processing plant infrastructure, these components were ...

Securing long-term joint integrity in critical energy and processing facilities requires exact alignment between material toughness, pressure ratings, and forging standards. Haihao Group has successfully completed fabrication, testing, and dispatch of a multi-specification shipment of forged fla ...

Haihao Group has completed the production, non-destructive testing, and export packing for a targeted batch of high-pressure weld neck flanges bound for a offshore energy project in Singapore. Built to handle heavy mechanical loads and elevated pressure requirements, this delivery underscores ou ...