CuNi 90/10 Tube

CuNi10Fe1Mn (90/10) copper-nickel tube. Its resistance to seawater corrosion and biofouling makes it the standard material for shipboard and seawater cooling lines.

Grade and sizes

CuNi 90/10 · CW352H

CuNi10Fe1Mn

A copper-nickel (90/10) alloy containing 9–11 % nickel, 1–2 % iron and 0.5–1 % manganese. It resists corrosion and erosion in seawater, and the protective surface film it forms largely prevents biofouling such as mussels and weed from attaching. It has good thermal conductivity and can be joined by welding and brazing. Used for seawater cooling, fire-fighting and bilge lines as well as condensers and heat exchangers.

INTERNATIONAL EQUIVALENTS

EN CW352H · DIN 2.0872 · UNS C70600 · BS CN102
Tube standard: ASTM B111 (seamless)

STOCK SIZES: 12×1 · 16×1 · 16×1.2 · 19×1 mm
LENGTH: 16×1.2: 5.5 m · others 6 m
ORDERING: Sold by the length (full lengths)

Request a quote on WhatsApp Calculate weight ↓Request technical data

Chemical composition, mechanical properties and material certificates are available on request.

CuNi 90/10 tube weight calculator

Calculate the weight from the size, or the length and number of pieces needed for a target weight. Your selections are added to the quote message automatically.

DIAMETER AND WALL UNIT

TUBE SIZE · ONE IS REQUIRED

Outside diametermmWall thicknessmmLengthmmQuantitypcs

CuNi10Fe1Mn: calculated with a density of 8.9 g/cm³.

TOTAL THEORETICAL WEIGHT

– kg

Enter either the wall thickness or the inside diameter to calculate.

Order terms: Sold in full lengths only. This is a theoretical weight; we invoice on the actual weight as weighed.

Request a quote for this size on WhatsApp

For other copper sizes, weight-per-metre tables and densities, see the Copper weight calculator →

Applications

Shipboard seawater cooling lines
Condensers and heat exchangers
Shipboard hydraulic and fuel lines
Desalination plants

Frequently asked questions

Are CuNiFe and CuNi 90/10 the same?

Yes. The material traded as CuNiFe, CuNi10Fe or 90/10 is the copper-nickel alloy CuNi10Fe1Mn (CW352H, UNS C70600). The small-diameter tubing sold as “CuNiFe brake pipe” in the automotive trade is the same alloy, but it is a separate product with its own sizes and standards.

What are the designations for CuNi10Fe1Mn?

CuNi10Fe1Mn: CuNi 90/10, EN CW352H, DIN 2.0872, UNS C70600, BS CN102. Any of these designations can be used in your enquiry; we will match the correct material.

Why can the invoiced weight differ from the calculated weight?

The calculator gives the theoretical weight. The actual weight varies with dimensional tolerances and cutting allowance; we invoice on the actual weight as weighed.

What information should I send for a quote?

We only need the size (outside diameter × wall thickness × length), quantity and delivery location. If you fill in the calculator above, these details are added to the WhatsApp message automatically.