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ASTM B111 UNS C71640 / CW353H Seamless Copper Nickel Alloy Tube Condenser Tube

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ASTM B111 UNS C71640 / CW353H Seamless Copper Nickel Alloy Tube Condenser Tube

Brand Name : YUHONG

Model Number : ASTM B111 C71640

Certification : ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008

Place of Origin : CHINA

MOQ : 1PC

Payment Terms : L/C,T/T

Delivery Time : 7 DAYS

Packaging Details : Ply-wooden Case /Iron Case/ Bundle With Plastic Cap

Product Name : Copper Alloy Tube

Standard : ASTM B111, ASME SB111

Material : UNS C71640, CW353H, CuNi 70/30

NDT : Eddy Current Test , Hydrostatic Test , Ultrasonic Test

Length : Single Random, Double Random & Cut Length

End : Plain End, Beveled End

Form : Round, Coil, Square, Rectangular, Boiler, Hydraulic, Straight or "U" bent Tubes, Hollow, LSAW Tubes Etc.

Type : Seamless

Finish : O61 Annealed

High Light : ASTM B111 Copper Nickel Alloy Pipe, ASME SB111 Copper Nickel Alloy Pipe, C71640 Seamless Alloy Pipe

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ASTM B111 / SB111 C71640 Copper Nickel Alloy Seamless Tube / CW353H Condenser Tube

UNS C71640 consists of approximately 65% copper, 30% nickel, and 5% silicon. This composition contributes to its superior resistance to corrosion, both in marine and mildly acidic environments. UNS C71640 displays good mechanical strength, combined with excellent ductility. It can withstand high-velocity seawater flow and has relatively low susceptibility to erosion-corrosion. UNS C71640 tubes are designed to withstand high-pressure conditions. The pressure rating may vary depending on the size, wall thickness, and specific application requirements. It is important to refer to the manufacturer's specifications and engineering guidelines for the appropriate pressure ratings.

Designation Chemical Composition %
Cu Sn Al As Ni Fe Mn Pb max. Zn
C44300 70.0-73.0 0.9-1.2 – 0.02-0.06 – 0.06 max – 0.07 Rem
C68700 76.0-79.0 – 1.8-2.5 0.02-0.06 – 0.06 max – 0.07 Rem
C70400 Rem – – – 4.8-6.2 1.3-1.7 0.3-0.8 0.05 1.0max
C70600 Rem – – – 9.0-11.0 1.0-1.8 1.0max 0.05 1.0max
C71500 Rem – – – 29.0-33.0 0.4-1.0 1.0max 0.05 1.0max
C71640 Rem – – – 29.0-32.0 1.7-2.3 1.5-2.5 0.05 1.0max

The world standard Grade equivalent to ASTM B111

Material Designation Corresponding Material Symbol
GB/T8890 ASTM B111 BS2871 JIS H3300 DIN1785
Copper-Nickel BFe10-1-1 C70600 CN102 C7060 CuNi10Fe1Mn
BFe30-1-1 C71500 CN107 C7150 CuNi30Mn1Fe
(BFe30-2-2) C71640 CN108 C7164 CuNi30Fe2Mn2
(BFe5-1.5-0.5) C70400 – – –
B7 – – – –
Aluminums Brass HAL77-2 C68700 CZ110 C6870 CuZn20Al2
Admiralty Brass HSn70-1 C44300 CZ111 C4430 CuZn28Sn1
Boric Brass Hsn70-18 – – – –
HSn70-1 AB – – – –
Arsenical Brass H68A – CZ126 – –
Brass Tube H65/H63 C28000/C27200 CZ108 C2800/C2700 CuZn36/CuZn37

Tensile Requirements

Copper or Copper Alloy UNS NO. Temper Designation Tensile Strength Yield Strength
Standard Former min ksi min ksi
C44300 O61 annealed 45 15
C68700 O61 annealed 50 18
C70400 H55 light-drawn 38 30
C70600 H55 light-drawn 45 15
C71500 O61 annealed 52 18
C71640 O61 annealed 63 25

Application

  1. Shipbuilding and Offshore Structures

  2. Power Generation

  3. Desalination Plants

  4. Offshore Oil and Gas Industry

  5. Coastal Industrial

  6. Condenser

ASTM B111 UNS C71640 / CW353H Seamless Copper Nickel Alloy Tube Condenser Tube


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