100% CuNi 70/30 Forged Socket Weld Flange ASME B16.5 CL150 MTC Provided

Product Specification

Free Sample CuNi 70/30 Forged SW Flange ASME B16.5 CL150 Seawater Pipe

1. Product Description

100% CuNi 70/30 Forged Socket Weld Flange is manufactured from genuine copper-nickel alloy (UNS C71500) through hot forging process. We guarantee 100% material authenticity — every flange is made from qualified CuNi 70/30 raw material, never mixed or substituted. Each shipment comes with a Material Test Certificate (MTC) documenting chemical composition and mechanical properties for full traceability. The flange features socket weld connection with Raised Face sealing surface, produced per ASME B16.5 standard, Class 150 pressure rating. With complete material documentation and reliable quality, this product is a trusted choice for critical seawater piping systems where material integrity matters.

2. Key Product Parameters

3. Product Applications

• Ship seawater cooling systems

• Offshore platform critical water service piping

• Seawater desalination plants

• Coastal power plant cooling water circuits

• Heat exchanger and condenser connections

• Marine fire water and safety systems

• Chemical brine processing lines

• Naval vessel seawater piping

4. Product Advantages

1. 100% Genuine Material: We guarantee every flange is made from authentic CuNi 70/30 alloy. No material substitution, no mixed grades. Material integrity you can trust.

2. MTC Provided with Every Order: Material Test Certificate documenting chemical composition and mechanical test results is included with each shipment, ensuring full traceability from raw material to finished product.

3. Excellent Seawater Corrosion Resistance: Genuine CuNi 70/30 forms a natural protective layer in seawater, providing reliable long-term service.

4. Hot Forged Quality: Manufactured through hot forging process, delivering dense grain structure and superior mechanical properties compared to cast alternatives.

5. Natural Anti-Fouling: Real copper content ensures effective reduction of marine organism attachment.

6. Easy Installation: Socket weld design allows simple pipe insertion and fillet welding.

7. Reliable Sealing: Raised Face provides effective sealing surface for gaskets.

8. ASME B16.5 Compliance: Strict dimensional tolerances ensure proper fit.

9. Low Maintenance: Self-forming protective film, no extra coatings needed.

10. Third-Party Inspection Welcome: Material can be verified by third-party inspection agencies upon request.

5. Product Functions

• Provide reliable socket weld connection for seawater piping

• Ensure leak-proof sealing in saltwater service

• Withstand Class 150 working pressure safely

• Allow easy disassembly for maintenance

• Full material traceability from MTC documentation

6. User Instructions

Material Verification Upon Receipt:

1. Check MTC against flange markings (heat number, material grade).

2. Verify chemical composition in MTC meets CuNi 70/30 specification.

3. Confirm mechanical properties meet requirements.

4. PMI (Positive Material Identification) testing can be arranged if needed.

5. Store MTC with project quality records.

Pre-Installation Preparation:

1. Inspect each flange for transport damage.

2. Verify markings match MTC and project specifications.

3. Clean socket bore and sealing face thoroughly.

4. Use dedicated CuNi tools to avoid contamination.

Installation Steps:

1. Insert pipe fully into socket, then withdraw 1.6mm for expansion gap.

2. Ensure pipe is square to flange face.

3. Tack weld at 4 positions around hub.

4. Complete fillet weld using TIG with ERCuNi filler.

5. Use argon shielding gas throughout.

6. Keep welding temperature moderate.

7. Clean weld area after each pass.

Post-Installation:

1. Visual inspection of all welds.

2. Pressure test as per requirements.

3. Check for leakage at all joints.

7. Product Precautions

1. Store in dry, ventilated indoor area.

2. Keep separated from carbon steel to prevent contamination.

3. Handle with care, avoid dropping or impact.

4. Do not use with ammonia-containing media.

5. Always use argon shielding when welding.

6. Use dedicated tools for CuNi work.

7. Keep MTC documents for project traceability records.

8. Control seawater flow velocity within reasonable limits.

8. Shipping Information

9. Payment Information

10. Packaging Information

11. Purchase, Return & After-Sales Service

How to Purchase:

1. Send inquiry with size, quantity and specifications.

2. Receive quotation with MTC sample for reference.

3. Confirm order and sign contract.

4. Arrange payment to start production.

5. Goods shipped with full MTC documentation.

Return & Exchange:

• Material non-conformance: if MTC or third-party testing shows material does not meet CuNi 70/30 specification, full refund or replacement provided and we bear all costs.

• Quality defects: notify within 30 days, replacement or refund after verification.

• Non-quality returns: within 15 days, unused and original packaging, customer bears freight.

After-Sales:

• Warranty: 12 months from shipment.

• MTC re-issuance: available if documents are lost.

• Technical support for product questions and installation.

• Third-party inspection coordination available.

• Quick response within 24 hours.

• 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.