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ADMIRALTYTUBES
Specialty alloy tubes in an industrial warehouse
Special Alloy · Heavy Industrial Supply

Your emergency,
is our emergency.

Fast quoting on Admiralty Brass C44300, Cupronickel 90/10 C70600 and 70/30 C71500 tubes. Factory certificates under ASTM B111 / ASME SB 111, maritime packaging and 24/7 global dispatch.

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ASTM B111
Certified standard
31 countries
Export reach
24/7
Emergency supply
Technical Catalog

Alloys that work
where others fail.

All tubes are supplied under international standards, with Factory Test Certificates and reinforced packaging for maritime transport.

Admiralty Brass Tube C44300
C44300

Admiralty Brass Tube C44300

Admiralty Brass · CuZn28Sn1

ASTM B111 · ASME SB 111

  • High corrosion resistance in seawater and sulfur-bearing fluids
  • Excellent thermal conductivity for heat exchangers
  • Weldable by GTAW/TIG and brazing
Diameters
1/4" – 6"
Wall thickness
0.40 – 6.0 mm
Length
Per customer requirement
▣ Full technical datasheet

Admiralty Brass alloy with excellent corrosion resistance, high thermal conductivity and good mechanical properties for heat exchangers and condensers.

Corrosion resistance Good resistance in seawater, brackish water and corrosive fluids.
Thermal conductivity High conductivity, ideal for efficient heat transfer.
Mechanical properties Moderate strength and ductility; easy to form, bend and fabricate.
Weldability Brazing, soft soldering and GTAW/TIG welding.

Applications

  • Heat exchangers
  • Steam condensers cooled with fresh or sea water
  • Oil evaporators and coolers
  • Refrigeration systems
  • Oil refineries with high sulfur-compound corrosion

Synonyms / nomenclature

C44300 copper tubes ASTM B111 C44300 brass tubes C44300 tubes Arsenical brass C44300 tubes Arsenical bronze C44300 tubes CZ111 CuZn28Sn1 bronze tubes Admiralty brass tubes
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Copper Nickel Tube C70600
C70600

Copper Nickel Tube C70600

CuNi10Fe1Mn · UNS C70600

UNS C70600 · ASTM B111 · ASME SB 111

  • Severe seawater and offshore service
  • Low macrofouling and stress corrosion
  • Pressure vessels 300–350 °C
Diameters
1/4" – 6"
Wall thickness
0.40 – 6.0 mm
Length
Per customer requirement
▣ Full technical datasheet

90% copper / 10% nickel alloy with iron and manganese additions. Excellent for seawater service and hostile environments.

Composition 90% copper, 10% nickel with iron and manganese.
Thermal conductivity (20 °C) 0.12 cal·cm/cm²·s·°C — 29 BTU·ft/ft²·h·°F
Service temperature Pressure vessels between 300 °C and 350 °C.
Corrosion resistance Low macrofouling rates; high resistance to stress cracking in salt water.

Applications

  • Seawater service
  • Forged valve and pump components
  • Engine cooling
  • Offshore oil and gas production
  • Desalination plants
  • Exchanger shells and distiller tubes

Synonyms / nomenclature

90/10 copper nickel tubes ASTM B111 C70600 copper tubes BFe10-1-1 CN102 CuNi10Fe1Mn CuNi 90/10 tube UNS C70600 tube 90/10 cupronickel Copper nickel piping
Quote C70600 →
Copper Nickel Tube C71500
C71500

Copper Nickel Tube C71500

Maximum strength · UNS C71500

UNS C71500 · ASTM B111 · ASME SB 111

  • Best impact and acid resistance in the copper family
  • Stainless steel replacement against chlorides
  • Standard in high-pressure feedwater heaters
Diameters
1/4" – 6"
Wall thickness
0.40 – 6.0 mm
Length
Per customer requirement
▣ Full technical datasheet

Highest impact and acid/water corrosion resistance among copper alloys. Standard for feedwater heaters in high-pressure steam plants.

Corrosion resistance Excellent in seawater; high resistance to chloride stress-corrosion cracking and biofouling.
Thermal conductivity High conductivity for efficient heat transfer.
Mechanical properties Good strength and ductility; easy to form and fabricate.
Weldability Welding, brazing, oxyacetylene, gas-shielded arc, spot, seam and butt welding.

Applications

  • Severe seawater systems
  • Marine hardware, propellers and premium vessel hulls
  • Pump and boiler components
  • High-demand heat exchangers
  • Feedwater heaters in steam plants

Synonyms / nomenclature

C71500 copper tubes C71500 copper-nickel tubes and pipes 70/30 cupronickel C71500 tubes
Quote C71500 →
Industries served

Where corrosion is not an option.

We supply core alloys for the most demanding operations in the world: refineries, offshore platforms, desalination plants, defense vessels and steam generation stations.

  • 01 Energy
  • 02 Oil & Gas
  • 03 Petrochemical
  • 04 Naval
  • 05 Defense
  • 06 HVAC
  • 07 Desalination
  • 08 Refineries
Who we are

Immediate response.
Global operation.

AdmiraltyTubes LLC specializes in fast quoting of special alloys, industrial tubing and hard-to-find fasteners.

We work with procurement and engineering teams in energy, oil & gas, petrochemical, naval, defense and HVAC — delivering traceable material, with Factory Test Certificate and maritime packaging ready for international dispatch.

We are exclusive distributors for the most renowned tubing manufacturers, with facilities in the USA, Germany, Korea, Poland, India and China, who guarantee consistent production of copper tubes in a wide range of sizes and specifications, backed by engineers and technicians who work alongside every client on tailored solutions.

Traceability

Factory certificate on every order

Logistics

Reinforced packaging for sea freight

Response

Quotes in hours, not days

Global Export

We ship to 31 countries

International maritime packaging and full export documentation included in every shipment.

Ireland Singapore Indonesia Ukraine Saudi Arabia Qatar Bahrain Spain Canada United States Brazil Thailand Korea Russia Chile India Egypt Oman Kuwait Vietnam United Kingdom Netherlands Mexico Peru Malaysia Italy Nigeria Guyana Colombia Ecuador Venezuela
Request a Quote

Send us your
requirement.

Attach specification, quantity, dimensions and destination port. Our team will respond with a technical and logistics offer.

Address
4750 Bison St
Boca Raton, FL 33428
Estados Unidos