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Cupro Nickel 70/30 Tubes – Supplier, Stockist
and Exporter in Mumbai, India

Cupro Nickel 70/30 (UNS C71500) Tubes to ASTM B111

70/30 cupro-nickel (UNS C71500, DIN 2.0882, CuNi30Mn1Fe) contains about 70% copper and 30% nickel, with small additions of iron and manganese. It is the strongest and most corrosion-resistant of the common cupro-nickel grades.


Table of Content



Properties and Uses of Cupro Nickel 70/30 Tubes

70/30 cupro-nickel withstands higher seawater velocities and erosion than 90/10, and has good resistance to stress-corrosion cracking and to impingement attack.

Where not to use it: Avoid sulphide-polluted seawater. 70/30 costs more than 90/10, so for most seawater piping at normal velocities 90/10 cupro-nickel is sufficient.

Testing, Documentation and Packaging

Every lot of Cupro Nickel 70/30 tubes is inspected before dispatch. Typical tests include chemical analysis / PMI, tensile and hardness testing, flaring and flattening tests, hydrostatic or eddy-current testing, and dimensional inspection. Third-party inspection can be arranged on request.

Material is supplied with a mill test certificate to EN 10204 3.1, together with the raw-material report and inspection reports. For export orders it is wrapped in poly bags and packed in fumigated wooden cases, crates or pallets, with a fumigation certificate included.


Cupro Nickel 70 / 30 Tubes

Equivalent Grades


STANDARD WERKSTOFF NR. UNS
CuNi 70/30 2.0882 C71500

Standard Specification for Cupro Nickel 70/30 Tubes

Specifications

ASTM B111, B466, B543 / ASME SB111, SB466, SB543

Dimensions

ASTM, ASME and API

Tube Size

1/2" NB - 24" NB

Wall Thickness

Schedule 5S - Schedule XXS.

Manufacturing Shapes

Round, Rectangle, Square, Hex

Manufacturing Techniques

Seamless / Welded / ERW / Fabricated

Schedule Thickness Range

SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS

Types

Plain End, Beveled End, Treaded One End, TBE (Treaded Both Ends)

Value Added Services

Cutting, Beveling, Polishing, Threading, Destructive, Non Destructive, Ultrasonic Testing

Other Types of Cupro Nickel 70/30 Tubes

Cupro Nickel 70/30 Seamless Tubes

Cu Ni 70/30 Seamless Tubes

Seamless tubes for pressure and heat-transfer service, supplied to ASTM B111.
Cupro Nickel 70/30 Welded Tubes

Cu Ni 70/30 Welded Tubes

Welded tubes, an economical option for larger sizes and lower-pressure lines, supplied to the customer's specification.

Cupro Nickel 70/30 Round Tubes

Cu Ni 70/30 Round Tubes

Round tubes in standard and custom sizes, cut to length.
Cupro Nickel 70/30 ERW Tubes

Cu Ni 70/30 ERW Tubes

Welded tubes, an economical option for larger sizes and lower-pressure lines, supplied to the customer's specification.

Chemical Composition

GradeCuNiFeMnPbZn
UNS C71500Rem.29.0 – 33.00.40 – 1.01.0 max0.05 max1.0 max

Mechanical Properties

Element Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
Copper Nickel 70-30 0.323 lb/in3 at 68 F 2260 F 50000 psi 20000 psi 30 %

Available Forms


Seamless tubesWelded tubes
Round tubesSquare tubes
Thin-wall tubesThick-wall tubes
U-bent tubesCut-to-length tubes

Applications of Cupro Nickel 70/30 Tubes


  •   High-velocity seawater systems
  •   Power-plant condensers and feedwater heaters
  •   Desalination (MSF) plants
  •   Naval and marine heat exchangers
  •   Offshore oil and gas cooling systems
  •   Oil coolers

Export Destinations For Cupro Nickel 70 / 30 Tubes


Slovakia, Peru, Russia, Poland, France, Romania, Vietnam, Mongolia, Ukraine, Japan, Gabon, Saudi Arabia, Angola, Denmark, Croatia, Israel, Sweden, Mexico, Costa Rica, Austria, Egypt, Hungary, Algeria, Bangladesh, Morocco, Colombia, Iran, Brazil, Serbia, United Kingdom, Qatar, Tunisia, Hong Kong, Canada, Mexico, United States, Azerbaijan, Singapore, Bolivia, Ghana, Iran, Yemen, China, Chile, Kenya, Afghanistan, Switzerland, Malaysia, Chile, Portugal, South Africa, Iraq, Finland, Trinidad & Tobago, Greece, Argentina, Ecuador, Thailand, Philippines, Bahrain, Lithuania, Oman, Kuwait, Estonia, Bulgaria, Norway, Venezuela, Belgium, Nigeria, Jordan, Libya, New Zealand, Czech Republic, Pakistan, Netherlands, Turkey, Kazakhstan, Nigeria, United Arab Emirates, Poland, Italy, Indonesia, Belarus, Taiwan, Spain, Sri Lanka, Lebanon, Bhutan, Australia, South Korea.