CuNi 70/30 Copper Nickel Long Radius Elbow ASME B16.9 Butt Welding Pipe Fitting C71500

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

1. 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.

2. 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.

3. 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.

4. 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.

5. 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.

6. 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

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