TOBO INDUSTRIAL (SHANGHAI) CO., LTD
| Surface Finish | Polished, Sandblasting, Pickling |
| Price Term | CIF CFR FOB Ex-Work |
| Delivery Time | 15-30 workdays |
| Packing | Standard Packing |
| End Connections | Butt Weld, Socket Weld, Threaded |
| Packaging Details | plywood case or wooden case |
| Payment Terms | Western Union, T/T |
| Technics | Casting |
| Corrosionresistance | High resistance to seawater corrosion |
| Application | Marine, offshore, chemical processing |
| Pressure Rating | 3000 PSI, 6000 PSI, 9000 PSI |
| Temperature Level | High Temperature |
| Degree | 45,90,180 |
| Thermalconductivity | Approximately 29 W/m·K |
| Connection Type | Butt Weld, Socket Weld, Threaded |
| Supply Ability | 100000000 Piece/Pieces per Month |
| Product Name | Copper Nickel Elbow |
| Length | customized |
| Productname | Copper Nickel Elbow |
| Customized | Customized support |
| Model Number | Elbow |
| Brand Name | TOBO/ METAL |
| Place of Origin | China |
| Certification | BV/ SGS/ TUV/ ISO |
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Product Specification
| Surface Finish | Polished, Sandblasting, Pickling | Price Term | CIF CFR FOB Ex-Work |
| Delivery Time | 15-30 workdays | Packing | Standard Packing |
| End Connections | Butt Weld, Socket Weld, Threaded | Packaging Details | plywood case or wooden case |
| Payment Terms | Western Union, T/T | Technics | Casting |
| Corrosionresistance | High resistance to seawater corrosion | Application | Marine, offshore, chemical processing |
| Pressure Rating | 3000 PSI, 6000 PSI, 9000 PSI | Temperature Level | High Temperature |
| Degree | 45,90,180 | Thermalconductivity | Approximately 29 W/m·K |
| Connection Type | Butt Weld, Socket Weld, Threaded | Supply Ability | 100000000 Piece/Pieces per Month |
| Product Name | Copper Nickel Elbow | Length | customized |
| Productname | Copper Nickel Elbow | Customized | Customized support |
| Model Number | Elbow | Brand Name | TOBO/ METAL |
| Place of Origin | China | Certification | BV/ SGS/ TUV/ ISO |
CuNi 70/30 Copper Nickel Long Radius Elbow ASME B16.9 Butt Welding Pipe Fitting C71500
The Copper Nickel Elbow is a finished pressure-piping directional fitting produced against engineering purchase orders, delivered with full material traceability (Heat Number). Available in both metric (DN) and imperial (NPS) series, it accommodates piping systems designed to various international standards. Each elbow is shipped with ready-prepared end bevels (or threaded/socket ends), surface-cleaned, and with end protectors installed, enabling immediate fit-up and welding or installation upon arrival without additional shop preparation. The supplier provides full inspection certificates (EN 10204 3.1/3.2) and supports third-party inspection/surveillance during manufacturing.
2.Product Applications
This product is specified for directional changes in the following new-build and retrofit projects:
New Shipbuilding: Seawater cooling, ballast, and fire-fighting systems on tankers, bulk carriers, LNG carriers, and offshore support vessels.
Topside Modules on Offshore Platforms: Process piping, utility systems, and seawater lift piping turn points.
Coastal Power Plant Circulating Water Systems: Large-bore directional turns from intake heads to pump houses and condenser inlets/outlets.
Refurbishment of Aged Pipelines: Replacement of corroded carbon steel or galvanized elbows, with on-site fit-up capability compatible with existing flanges or valve interfaces.
Desalination Plant Turnarounds: Stocked as spare parts for quick replacement of erosion-worn sections in MSF/RO units.
3.Product Advantages
Short Lead Times and Flexible MOQ: Common sizes (DN50–DN300) are available as semi-finished blanks, enabling delivery within 15–20 days; custom sizes are accepted with single-piece orders and no minimum quantity restrictions.
Weld-Friendly Characteristics: No pre-heating or post-weld heat treatment is required. Standard SMAW or GTAW processes produce high-quality joints, significantly reducing site labor difficulty and energy consumption.
Reduced Spare Parts Variety: CuNi90/10 and CuNi70/30 elbows are fully compatible with matching flanges, tees, and reducers, allowing unified procurement and simplified warehouse inventory management.
Weight-Optimized Design: Wall thickness is precisely calculated to meet pressure ratings, making the elbow approximately 8%–10% lighter than equivalent 316L stainless steel fittings, reducing lifting difficulty, support loads, and shipping costs.
Ready-to-Use with Straightforward Inspection: End protectors and passivation layers are intact upon arrival. Site inspection is limited to visual dimensions and wall-thickness spot checks, eliminating extra surface preparation.
Full Lifecycle Traceability with Warranty: Each batch comes with complete mechanical and chemical test reports. Any material performance issues during the warranty period are traceable to specific heat numbers for rapid claims or replacement supply.
4.Key Product Specifications
| Parameter Category | Specification / Range |
| Applicable Standards | ASME, EN, GB, and marine standards (EEMUA / Naval specifications) |
| Common Stock Sizes | DN 20 / 25 / 40 / 50 / 80 / 100 / 150 / 200 / 250 / 300 (NPS ¾"～12") |
| Custom Size Range | DN 350 – DN 1200 (requires 30–45 days advance ordering) |
| Approx. Unit Weight | DN100 Sch40 ~3.5–4.2 kg/pc; DN300 Sch40 ~28–32 kg/pc (beveled ends included) |
| Standard Packaging | Small bore (≤DN80): woven bags/cartons; Medium/Large: fumigated wooden cases; Extra-large: steel-framed open crates |
| Pack Quantity per Unit | ≤DN50: up to 50 pcs/case; DN100–DN200: up to 10 pcs/case; ≥DN250: single-piece wooden case |
| Delivery Condition | Pickled/passivated surface + anti-rust grease on ends + plastic caps/flange protectors |
| Inspection Documentation | Mill certificate, dimensional report, hydrostatic test report, IGC test report, NDT reports (as applicable) |
| Third-Party Inspection | BV / DNV / ABS / LR / SGS or other classification societies / TPI accepted on-site |
| Warranty Period | 18 months from delivery or 12 months from commissioning (whichever comes first), covering material and manufacturing defects |
| Key Acceptance Tolerances | Bend angle ±1°; End O.D. deviation ±1.5mm (≤DN200) / ±2.5mm (>DN200); Wall thickness positive deviation ≤15%, negative ≤10% |
| Marking Location | Steel-stamped on the back extrados surface (specification, material grade, heat number, standard, manufacturer ID) – clear and non-damaging to base metal |
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer
Total Annual:
>1000000
Employee Number:
>100
Ecer Certification：
Verified Supplier
TOBO INDUSTRIAL (SHANGHAI) Co., Ltd. is a professional supplier of pipeline products, located in Shanghai, with convenient transportation and beautiful environment. Dedicated to strict quality control and customer service. Our experienced staff can readily discuss your requirements to ensu... TOBO INDUSTRIAL (SHANGHAI) Co., Ltd. is a professional supplier of pipeline products, located in Shanghai, with convenient transportation and beautiful environment. Dedicated to strict quality control and customer service. Our experienced staff can readily discuss your requirements to ensu...
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