TOBO STEEL GROUP CHINA
| Size Range | 1/2 Inch to 36 Inch |
| Payment Terms | L/C,T/T,Western Union |
| Supply Ability | 10,000 Pieces per Month |
| Wall Thickness | Sch10S to Sch80 |
| Application | Marine and Offshore Piping |
| Corrosion Resistance | Excellent Seawater Corrosion Resistance |
| Connection Type | Butt Weld |
| Packaging Details | Plywood cases or wooden pallets with waterproof wrapping, export standard |
| Product Name | Copper Nickel CuNi 90/10 Lap Joint Stub Ends |
| Material Grade | CuNi 90/10 (C70600), CuNi 70/30 (C71500) |
| Standard | MSS SP-43, ASTM B171, DIN 86037 |
| Delivery Time | 15-40 days depending on quantity |
| Model Number | CUNI-STUBEND-9010 |
| Brand Name | Tobo |
| Place of Origin | China |
| Certification | ISO 9001:2015, ABS, DNV, BV |
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Product Specification
| Size Range | 1/2 Inch to 36 Inch | Payment Terms | L/C,T/T,Western Union |
| Supply Ability | 10,000 Pieces per Month | Wall Thickness | Sch10S to Sch80 |
| Application | Marine and Offshore Piping | Corrosion Resistance | Excellent Seawater Corrosion Resistance |
| Connection Type | Butt Weld | Packaging Details | Plywood cases or wooden pallets with waterproof wrapping, export standard |
| Product Name | Copper Nickel CuNi 90/10 Lap Joint Stub Ends | Material Grade | CuNi 90/10 (C70600), CuNi 70/30 (C71500) |
| Standard | MSS SP-43, ASTM B171, DIN 86037 | Delivery Time | 15-40 days depending on quantity |
| Model Number | CUNI-STUBEND-9010 | Brand Name | Tobo |
| Place of Origin | China | Certification | ISO 9001:2015, ABS, DNV, BV |
| High Light | Copper Nickel Stub End ，CuNi 90/10 Alloy ，Marine Pipe Fittings | ||
The Copper Nickel CuNi 90/10 Lap Joint Stub Ends are premium marine grade pipe fittings engineered specifically for seawater and offshore piping systems. Manufactured to MSS SP-43 with reference to ASTM B171 and DIN 86037, these copper nickel stub ends offer outstanding resistance to seawater corrosion, biofouling and erosion, making them the industry standard choice for shipbuilding and offshore platforms.
Available in CuNi 90/10 (C70600) and CuNi 70/30 (C71500), our lap joint stub ends combine proven alloy performance with precision manufacturing. The copper nickel alloy forms a protective surface film in seawater that self-heals when damaged, providing long-term reliability unmatched by ordinary stainless steel in marine environments. Each fitting is produced with full traceability and can be supplied with ABS, DNV or BV classification certificates for marine class projects.
| Standard | MSS SP-43, ASTM B171, DIN 86037 |
|---|---|
| Material Grade | CuNi 90/10 (C70600), CuNi 70/30 (C71500) |
| Size Range | 1/2 Inch to 36 Inch |
| Wall Thickness | Sch10S to Sch80 |
| Connection Type | Butt Weld |
| Type | Long Type, Short Type |
| Surface Finish | Machined, Descaled |
| Classification | ABS, DNV, BV Available |
| Certification | ISO 9001:2015 |
Copper nickel alloys are subject to strict quality control due to their critical marine applications. We source CuNi 90/10 and CuNi 70/30 raw materials from certified mills and verify composition through spectrometric analysis. Production follows approved welding and forming procedures, and each fitting is pressure tested and dimensionally inspected.
For marine class projects, we coordinate with classification societies including ABS, DNV and BV to perform witnessed inspections and issue class certificates. Our team has supplied copper nickel fittings to shipyards and offshore contractors for over 15 years, building a track record of reliable marine piping solutions.
A: Copper nickel alloys such as CuNi 90/10 naturally form a protective, self-healing surface film in seawater. This film resists corrosion, biofouling and erosion, giving copper nickel stub ends a service life measured in decades for marine applications.
A: CuNi 90/10 (C70600) contains 90% copper and 10% nickel, offering the best balance of corrosion resistance and cost. CuNi 70/30 (C71500) contains 30% nickel, providing higher strength and better resistance to aggressive conditions such as polluted seawater.
A: Yes. We can arrange ABS, DNV, BV or LR classification inspection and certification for marine grade stub ends, including material certificates and witnessed pressure tests.
A: We supply copper nickel lap joint stub ends from 1/2 inch up to 36 inches, with wall thickness from Sch10S to Sch80. Larger sizes can be produced on request for special projects.
Company Details
Business Type:
Manufacturer,Agent,Importer,Exporter,Trading Company,Seller
Year Established:
1998
Total Annual:
100000-100000000
Employee Number:
200~300
Ecer Certification：
Verified Supplier
TOBO GROUP sales head offce in Shanghai. We are one of the Professional manufacturers Exporter Pipeline products in China .Our company was established in 1998, the plant covers 550, 000 square meters and a construction area ... TOBO GROUP sales head offce in Shanghai. We are one of the Professional manufacturers Exporter Pipeline products in China .Our company was established in 1998, the plant covers 550, 000 square meters and a construction area ...
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