Haihao Group supplies ASME B16.48 spectacle blinds, spades, and spacers for global shipbuilding projects
In recent years, China’s shipbuilding industry has witnessed tremendous growth, emerging as a global leader in the construction of large-scale commercial and offshore vessels. Riding this wave of industrial expansion, Haihao Group has established long-term partnerships with several major domestic shipyards and has become a reliable supplier of critical piping system components for large-scale marine projects.
As part of our global outreach, Haihao’s products are not only trusted by leading shipbuilders in China, such as COSCO Qidong Shipyard, but have also been selected for advanced marine projects in Singapore and Brazil—two of the world’s most active hubs for offshore oil & gas and marine engineering.
ASME B16.48 spectacle blind flanges produced by Haihao Group
Supplying High-Spec Components for Demanding Marine Applications
Most recently, Haihao Group has manufactured and supplied a series of ASME B16.48 spectacle blinds, spades, and spacers, tailored for international shipbuilding projects. These components are fabricated from high-performance materials to withstand demanding marine conditions, including high pressure, corrosion, and extreme temperatures.
The material grades used for this batch of products include:
- ASTM A240 UNS S32750 (Super Duplex Stainless Steel)
- ASTM A240 TP316 (Austenitic Stainless Steel)
- ASTM A516 Gr.70 (Carbon Steel for Pressure Vessels)
- ASTM A516 Gr.70 Cladded with Inconel 625 Layer (for enhanced corrosion and heat resistance)
- ASTM A350 LF2 CL1 (Low-Temperature Carbon Steel)
These Spectacle Blinds, Spades, and Spacers will be delivered in multiple shipments to the following destinations:
- COSCO Qidong Shipyard, China
- A major offshore engineering contractor in Singapore
- A leading marine project in Brazil
ASME B16.48 spectacle blinds, spades, and spacers packed and shipped
Precision Manufacturing for Shipbuilding and Offshore Industries
All components are manufactured in strict accordance with ASME B16.48 design specifications and undergo comprehensive quality control processes, including:
- Dimensional inspection
- Material certification (EN 10204 3.1/3.2)
- Visual surface inspection (no rust, cracks, or deformation)
- Additional testing based on client and project requirements
By offering custom machining, cladding technology, and material traceability, Haihao ensures each product meets the performance demands of critical marine systems such as:
- Ballast water pipelines
- Process and utility systems
- Valve isolation and maintenance applications
- Offshore oil and gas module piping
Haihao Group – A Trusted Global Partner for Piping System Solutions
Haihao Group’s participation in high-profile shipbuilding projects across China, Singapore, and Brazil reflects our commitment to delivering globally compliant, technically advanced, and on-time piping components. Our clients benefit from:
- Full compliance with international standards (ASME, ASTM, EN, ISO)
- Strong supply chain capacity and flexible delivery schedules
- Decades of experience in marine, petrochemical, and offshore industries
- Support for custom orders and emergency fabrication
Partner with Haihao for Your Next Marine or Offshore Project
Whether you are managing a new ship construction project, retrofitting offshore modules, or building pressure containment systems, Haihao Group is ready to provide precision-engineered components that meet your most exacting standards.
Contact our sales team today for a quotation or technical support on ASME B16.48 spectacle blinds, spades, and spacers—available in a wide range of materials and dimensions to match your application needs. Email:sales@haihaogroup.com