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Phone Number : 0086-21-31261985
WhatsApp : +8613524668060

CuNi 90/10 Marine Seawater Butt Weld Fittings Concentric Reducer C70600

  • CuNi 90/10 Marine Seawater Butt Weld Fittings Concentric Reducer C70600
  • CuNi 90/10 Marine Seawater Butt Weld Fittings Concentric Reducer C70600
  • CuNi 90/10 Marine Seawater Butt Weld Fittings Concentric Reducer C70600
Place of Origin Zhejiang, China
Brand Name HANPIPE
Certification ISO 9001:2015 / PED / EN 10204 3.1
Model Number BW-FITTING
Minimum Order Quantity 10 Pieces
Price USD 8-260 / Piece
Packaging Details Seaworthy wooden case or pallet with plastic end caps, customized marking available
Delivery Time 15-25 days after deposit
Payment Terms T/T,L/C,Western Union
Supply Ability 80000 Pieces per Month
Product Details
Product Name Marine Seawater Butt Weld Fittings Application Marine Seawater System
Material Grade CuNi 90/10 / C70600 Standard DIN 86090 / ASME B16.9
Size Range DN15 - DN600 Wall Thickness SCH10 - SCH80
Pressure Rating PN16 / Class 150 - Class 300 Surface Finish As Rolled Or Pickled
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CuNi 90/10 Seawater Fittings

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C70600 Concentric Reducer

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Marine Butt Weld Fitting
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Product Description
CuNi 90/10 Marine Seawater Butt Weld Fittings Concentric Reducer C70600
CuNi 90/10 marine seawater butt weld fittings are the industry standard for shipboard and desalination pipework exposed to fast flowing seawater. This concentric reducer is made from C70600 copper nickel alloy, which forms a protective oxide film that resists erosion corrosion and biofouling far better than carbon steel or stainless steel.
Copper nickel 90/10 offers excellent resistance to seawater velocities and is inherently resistant to chloride attack, so these marine butt weld fittings keep their integrity across decades of service. The concentric reducer ensures smooth, low turbulence flow when the line size changes, reducing pressure loss in seawater systems.
We manufacture every CuNi 90/10 butt weld fittings reducer to DIN 86090 and ASME B16.9 dimensions, with chemistry controlled to 28 to 34 percent copper balance nickel. Each fitting is dimensionally checked and hydrostatically tested before shipment.
Typical users include naval and merchant shipyards, offshore platforms, seawater cooling systems and desalination plants. Whether you need stub ends, elbows or reducers, our copper nickel butt weld fittings give you a complete, corrosion-proof seawater piping package.
Technical Specifications
Material Grade CuNi 90/10 / C70600
Product Type Concentric Reducer
Size Range DN15 (1/2 inch) - DN600 (24 inch)
Wall Thickness SCH10 - SCH80, 2mm - 20mm
Standards DIN 86090 / ASME B16.9
Pressure Rating PN16 / Class 150 - Class 300
Surface Finish As Rolled or Pickled and Passivated
End Connection Butt Weld (BW)
Why Choose Our Marine Seawater Butt Weld Fittings
  • Superior resistance to fast flowing seawater and erosion corrosion.
  • Natural protection against biofouling and marine growth.
  • Optimum 90/10 copper nickel ratio for a long, reliable service life.
  • Smooth concentric transition reduces turbulence and pressure loss.
  • Manufactured to DIN 86090 and ASME B16.9 for easy field fit-up.
  • 100 percent hydrostatic testing on every marine butt weld fittings reducer.
Typical Applications
  • Naval and merchant ship seawater systems
  • Seawater cooling and fire fighting lines
  • Offshore platform piping
  • Desalination and water treatment plants
  • Power plant condenser water circuits
Every Marine Seawater Butt Weld Fittings is packed in seaworthy wooden cases or pallets with protective end caps. We offer customized marking and labeling, and can consolidate mixed sizes in a single shipment to reduce your freight cost and handling time.
As a Marine Seawater Butt Weld Fittings manufacturer, we support custom sizes, wall thicknesses and materials, and arrange third party inspection such as SGS, BV or TUV on request. Our engineers review every enquiry and recommend the material, wall thickness and standard that best match your pressure, temperature and corrosion requirements.
Each Marine Seawater Butt Weld Fittings order is dimensionally inspected against the applicable standard before dispatch, and our quality team retains a sample record that can be re-tested on request. We also welcome factory audits and pre-shipment inspections from overseas buyers, and can supply reference projects and test reports to support your tender documents.
Frequently Asked Questions
Q: Why is CuNi 90/10 preferred for seawater butt weld fittings?
Copper nickel 90/10 forms a protective surface film and resists erosion corrosion, so it lasts far longer than carbon or stainless steel in moving seawater.
Q: Does the concentric reducer come with a chemical certificate?
Yes. Each CuNi 90/10 butt weld fittings reducer is supplied with an EN 10204 3.1 certificate showing the full chemical composition.
Q: Which standards apply to these marine fittings?
This reducer is made to DIN 86090 and ASME B16.9, and we also produce to EN and customer drawings.
Q: Can you supply a full seawater piping set?
Yes. We supply elbows, tees, reducers, caps and stub ends in matching C70600 copper nickel so the whole line shares one material system.
Tags:

butt welded pipe fittings

butt weld tube fittings

industrial pipe fittings