CuNi 70/30 Seamless Elbow 90° LR ASME B16.9 High Pressure Temperature Resistant

Product Specification

Copper Nickel Elbow

1. Product Description

CuNi 70/30 Seamless 90° LR Elbow is made from high-quality copper-nickel alloy (UNS C71500) using seamless forming process. It is manufactured according to ASME B16.9 standard, with butt weld ends for easy connection. The 90-degree long radius (1.5D) design provides smooth flow direction change in piping systems. This product is widely used in seawater piping, cooling systems, and other industrial applications where good corrosion resistance is needed.

2. Key Product Parameters

3. Product Applications

• Seawater cooling piping systems

• Cooling water circuits

• Industrial water treatment systems

• Heat exchanger connections

• Marine and offshore piping

• Chemical processing lines

• Water circulation systems

4. Product Advantages

1. Seamless Quality: Made from seamless pipe, no weld seam inside the elbow body, uniform wall thickness throughout.

2. Good Corrosion Resistance: CuNi 70/30 material performs well in seawater and many corrosive environments, providing long service life.

3. Smooth Flow Design: Long radius 1.5D design reduces flow resistance and pressure drop, ensuring efficient system operation.

4. Easy to Weld: Good weldability with matching CuNi pipes, standard TIG welding process can be used.

5. Wide Temperature Range: Suitable for operating temperatures up to 300°C, meeting various application needs.

6. Standard Dimensions: Made to ASME B16.9 dimensions, ensuring good fit with standard pipes and fittings.

7. Long Service Life: With proper installation and operation, the product can serve for many years with minimal maintenance.

5. Product Functions

• Change flow direction by 90 degrees in piping systems

• Connect pipes of same diameter with butt weld joints

• Maintain smooth flow with reduced pressure loss

• Work reliably under normal operating conditions

• Support system layout flexibility in piping design

6. User Instructions

Before Installation:

1. Check the elbow for any damage during transport.

2. Confirm size, wall thickness and material grade match your requirements.

3. Clean the weld ends to remove dirt, oil and oxides.

4. Use dedicated tools for copper-nickel material preparation.

Installation Steps:

1. Align the elbow ends with mating pipes, keep proper gap for welding.

2. Tack weld at 4 points around the joint.

3. Use TIG welding with suitable CuNi filler wire.

4. Control welding temperature, avoid overheating.

5. Use argon gas protection during welding.

6. Clean weld area after each pass.

After Installation:

1. Visually check all welds for surface defects.

2. Perform pressure test as required by project specification.

3. Check for any leakage at joints.

7. Product Precautions

1. Store in dry, clean indoor area, away from moisture and dust.

2. Keep separate from carbon steel products during storage.

3. Handle with care during transport, avoid dropping or impact.

4. Do not use in environments containing ammonia.

5. Use proper argon shielding gas when welding.

6. Clean all weld areas thoroughly after welding.

7. Use dedicated tools for copper-nickel material to avoid contamination.

8. Shipping Information

• Shipping Origin: China

• Delivery Time: Standard sizes 3-7 working days; custom sizes 15-30 days

• Shipping Methods: Express (DHL/FedEx/UPS) for small orders; Sea freight for bulk orders; Air freight available for urgent orders

• Documents Provided: Commercial Invoice, Packing List, Material Test Certificate

• Trade Terms: FOB, CIF, CFR available

• Tracking: Tracking number provided after shipment

9. Payment Information

• Payment Methods: T/T bank transfer, Letter of Credit

• Terms: 30% advance payment, 70% balance before shipment

• Currency: USD, EUR accepted

• For first-time cooperation, standard payment terms apply. Flexible terms available for established customers.

10. Packaging Information

• Small sizes: Carton box with bubble wrap

• Medium sizes: Plywood case or wooden crate

• Large sizes: Pallet with wooden crate

• All products protected with anti-rust coating before packing

• Custom packaging available upon request

• Standard packaging included in price

11. After-Sales Service

• Warranty: 12 months from shipment date against manufacturing defects

• Technical Support: Available by email or message for product questions

• Quality Issues: Report within 30 days of receipt for evaluation and resolution

• Return/Exchange: Accepted for verified quality issues; customer bears shipping for non-quality returns

• Response Time: We respond to inquiries within 24 hours on working days

• 1. Are you trading company or manufacturer ?
  We are manufacturer ,You can see the certification.
  2. How long is your delivery time?
  Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
  3. Do you provide samples ? is it free or extra ?
  Yes, we could offer the sample for free charge but need pay the cost of freight.
  4. What is your terms of payment ?
  Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.