Shanghai, June 2025 — TOBO Industrial (Shanghai) Co., Ltd., a global leader in piping systems and metal fittings, has announced the expansion of its non-ferrous product line with the introduction of premium copper alloy flanges. Designed for demanding environments in the marine, oil & gas, HVAC, desalination, and power generation sectors, these flanges offer outstanding corrosion resistance, strength, and thermal stability.
The new range of copper alloy flanges includes various grades such as C70600 (90/10 copper-nickel), C71500 (70/30 copper-nickel), brass, bronze, and other specialty copper-based materials. TOBO's precision engineering and quality assurance processes ensure these flanges meet international standards such as ASME B16.5, B16.47, DIN, EN, and JIS, offering global customers a reliable connection solution for pipelines and pressure vessels.
Superior Resistance to Corrosion and Seawater
One of the standout features of TOBO’s copper alloy flanges is their exceptional corrosion resistance, particularly in saline and brackish water environments. Copper-nickel alloys, especially 90/10 and 70/30 grades, are renowned for their ability to resist biofouling, stress corrosion cracking, and pitting — problems common in offshore and coastal installations.
This makes TOBO’s flanges a first choice for:
Seawater piping systems on ships and submarines
Desalination plants and offshore oil platforms
Cooling systems in power stations and marine engines
Chemical process systems requiring non-magnetic or anti-microbial surfaces
The addition of nickel and small amounts of iron and manganese enhances the mechanical and corrosion-resistant properties of the flanges, ensuring long-term stability and lower maintenance in aggressive service conditions.
Available Types and Configurations
TOBO provides a comprehensive lineup of copper alloy flange types, including but not limited to:
Weld Neck Flange
Slip-On Flange
Socket Weld Flange
Lap Joint Flange
Threaded Flange
Blind Flange
Custom fabricated flanges for special applications
Sizes range from 1/2" (DN15) to 48" (DN1200) or more, with pressure classes from Class 150 to Class 2500 and PN6–PN100. TOBO also offers Raised Face (RF), Flat Face (FF), Ring Joint (RJ), and other sealing surfaces depending on the sealing and installation requirements.
Whether you're building a high-pressure cooling system or a low-pressure potable water line, TOBO’s copper alloy flanges can be customized to meet your operational parameters and drawing requirements.
Precision Manufacturing and Certification
All flanges are manufactured at TOBO’s ISO 9001:2015-certified facility, where raw copper alloy materials are forged, heat treated, CNC machined, and tested under strict quality control procedures.
Key quality features include:
Uniform grain structure through controlled forging
Smooth sealing surfaces to ensure leak-proof assembly
Strict dimensional accuracy per ASME/DIN standards
Hydrostatic and pressure testing upon request
Material test reports (MTRs), EN 10204 3.1 / 3.2 certifications
TOBO also offers third-party inspection by SGS, TUV, BV, or customer-appointed agencies for added confidence on high-value or critical projects.
Global Demand and Market Growth
The global copper alloy flange market is witnessing steady growth due to increasing applications in green energy, water infrastructure, and shipbuilding. With governments pushing for sustainable and long-lasting materials in public and private engineering projects, copper alloys are becoming more preferred for their durability, recyclability, and antimicrobial properties.
TOBO’s copper alloy flange line is tailored to meet this demand, providing not just standard parts but also project-specific customization, including drilled holes, special coatings, or copper-nickel transitions to other piping materials.
The company’s recent large-scale orders for shipyards in Europe and desalination facilities in the Middle East underscore its competitive advantage in both price and performance.
Sustainable and Recyclable Engineering
Another advantage of copper alloy flanges is their environmental sustainability. Copper and its alloys are 100% recyclable without loss of performance, making them ideal for companies pursuing ESG goals or participating in green building certifications such as LEED or BREEAM.
TOBO’s supply chain ensures traceability of raw materials and supports circular economy initiatives. Customers are provided with data on recycled content, energy-efficient manufacturing, and lifecycle performance, helping them meet project-specific compliance and sustainability targets.
Fast Global Delivery and OEM Support
With a strong logistics and inventory network, TOBO offers fast shipment lead times, even on special-alloy flanges. The company provides:
OEM branding (laser marking or stamping)
Custom packing (plastic sleeves, wooden crates, export pallets)
Technical drawings and CAD support
Worldwide shipping with documentation: CO, Form A, CE, RoHS, etc.
Minimum order quantities (MOQ) are flexible, and TOBO’s export sales team is experienced in handling complex inquiries from clients in North America, Europe, the Middle East, and Asia-Pacific.
Customer-First Approach
TOBO prides itself not just on product quality, but also on responsive service and expert consultation. With over 15 years of experience in copper alloy applications, their engineers assist clients in material selection, design optimization, and cost-reduction strategies — making TOBO a valuable partner, not just a supplier.
Online catalogs, 3D models, and real-time inventory checks are also available through TOBO’s digital platforms, giving customers full transparency and efficiency in procurement.
Conclusion
With the launch of its copper alloy flange series, TOBO strengthens its position as a full-spectrum solution provider in pipeline components. These flanges offer a perfect combination of strength, corrosion resistance, thermal performance, and sustainability, making them ideal for both legacy systems and next-generation infrastructure projects.
Whether you are designing an HVAC system in a skyscraper, installing seawater lines on a naval vessel, or upgrading process pipelines in a refinery, TOBO’s copper alloy flanges provide the reliability and peace of mind you need.