Lebronze alloys Group was born from the integration of different companies specializing in copper alloys, copper, nickel alloys, aluminium alloys, specialty steels, stainless steels, titanium and nickel superalloys.

Thanks to a multidisciplinary know-how, the Group provides innovative solutions to all major industries such as Aerospace, Oil & Gas, Power, Railway but also in sectors manufacturing smaller equipment and products.

Our 14 production facilities and 1,300 employees manage a unique range of metal processing technologies: continuous and semi-continuous casting, sand casting, die precision chill casting (manual, mechanized and automated), centrifugal casting, extrusion, ring rolling, hot and cold rolling, drawing, open-die forging, hot stamping, closed-die forging, cold forming, machining, non-destructive testing, etc.

The Group’s commitment is to find appropriate and optimized solutions for every sector’s requirements.

We hope that this website allows you to find answers or ideas to support your projects.

We will help you to realize these!


    on 03/12/2020
    Dollar for 1€
    7644.00 $/t
    16102.00 $/t
    2045.50 $/t

NC4 / CA104 - aluminium bronze - CuAl10Ni5Fe4 – Lebronze Alloys

NC4 – CA104 – NCS


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NC4 - CA18 is a wrought aluminium bronze CuAl10Ni5Fe4 (C63000, C63200, C95510, CW307G, AMS4640, AMS4880) with  very good resistance to sea-water corrosion, saline mist and oxidation.

It offers high strength, hardness, good fatigue as well as toughness and excellent resistance to wear, shock and abrasion.

C63000/ AMS4640 is commonly used  in the Aerospace industry for landing gear bushes and bearings but also in Marine industry for distributor bodies, screws, forged parts.

CA104 -  CA1/CA2 is a wrought aluminium bronze CuAl10Ni5Fe4 (BSB23, DTD197A) commonly used in the United Kingdom. Mainly used for its high strength and excellent resistance to erosion, seawater corrosion and many other aggressive environments, it offers very good wear and abrasion resistance, an ability to withstand shock loading and keeps its properties at cryogenic temperatures.

  • Two-phase aluminium copper alloy
  • Transformation by extrusion, forging or die stamping
  • Suitable for hot forming (800 to 950°C)
  • Not suitable for cold forming
  • Good behaviour at arc welding, MIG and TIG welding
  • Not suitable for acetylene welding and soft solder
  • Machinability: 30% free-cutting brass

NCS – CA2 is a wrought aluminium bronze CuAl11Ni5Fe5 (AMS4590, C63020, C95520, AMS4881, CW308G, AMS4590) with high mechanical properties, oxidation resistant, saline mist corrosion resistant used in Aerospace industry (rings, bushings and bearings for landing gears, mechanical parts) but also in the Hydraulic industry (pump blocks)

Lebronze Alloys manufacturing process for NC4 ,CA104 ans NCS is fully integrated : internal processes

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Date: 09th November, 2020
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