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!
COVID-19 Customers news release
LBA supports its customers and partners in the resumption of their activities...
Copper in the fight against the risk of infection :
The case of COVID-19
Lebronze alloys (LBA), together with its scientific partners...
COVID-19 Customers news release
The LBA teams are more than ever mobilized and united in the face...
HARDIALL® is a high
Nickel Tin spinodal
It is wrought and spinodally
hardened, and it exhibits very
It has excellent physical
surface properties such as
friction, pitting & galling
stability, and good corrosion
It is environment
friendly, being Be-free,
Pb-free and recyclable
* such as hardness above 30 HRC and tensile strength above 1,000 MPa, depending on tempers and grades
Standards : CuNi15Sn8 ; UNS C72900 ; ASTM B 505.
|Hardiall® Key features & Benefits|
High strength and hardness
Excellent galling resistance
Corrosion & Erosion resistant
Pitting and spalling resistance
No Hydrogen embrittlement
High performance at both elevated and sub-zero temperatures -125℃ up to 300℃
Excellent wear resistance
|High pressure and load resistance|
Excellent fatigue strength
Hardiall® is available in two tempers: TX temper (wrought hot worked and spinodally hardened temper) and TS temper (wrought hot worked, cold finished and spinodally hardened temper) for even higher mechanical properties.
This Copper-Nickel-Tin spinodal alloy has a specific metallurgy enabling a spinodal decomposition and thus providing a unique combination of material properties.
High mechanical properties are reached by hot working or a combination of hot and cold working processing and are drastically enhanced with a final heat treatment controlling the spinodal decomposition.
For example, a threefold increase in the yield strength over the base metal is achieved after the spinodal decomposition treatment.
This heat treated "spinodal alloy" is a very good bearing and bushing material due to its high strength, low magnetic sensitivity, excellent machinability, maximum corrosion resistance
Additionally, its high surface resistance under impact loads and especially in critical lubrication conditions.
Compared to conventional bearing materials it provides longer lifespan, higher reliability and better construction flexibility
Hardiall is used under various environmental conditions, under high and very high loads at low and high speeds, lubricated, periodically lubricated or little lubrication in the temperature range from 73 C to + 300 C in combination with different materials.
In landing gears, bushings and bearings are required to operate under severe conditions high loads, increasing hydraulic systems pressure requirements they need to be lubricated and replaced frequently causing recurring maintenance downtimes.
To reduce maintenance costs Hardiall® is used for such applications as it demonstrates excellent lubricity, wear, and galling resistance. Thus providing a longer service life and an improved total cost of ownership (TCO) compared to other copper and non-copper alloys materials.
Hardiall® is ideal for applications where the load required exceeds the performance of copper-nickel-aluminum based alloys or where lubricity is critical and titanium cannot satisfy the Engineers requirements.
In mining equipment, bushings and bearings are highly solicited components operating in aggressive media with harsh minerals. They need to be lubricated and replaced frequently implying recurrent production downtimes and maintenance man hours.
Hardiall® is used in excavators, haul trucks, mining shovel and draglines, continuous miners. For such mining vehicles, Hardiall® demonstrates excellent lubricity, wear and galling resistance making it the ideal material for bushings and bearings.
For these applications, Hardiall® outperforms steel and manganese bronze by increasing the durability, the reliability and the lubrication cycles of highly solicited bushings and bearings.
Hardiall is specifically used offshore subsea applications where the continuously increasing depths create new challenges to master high remperature high pressure along with aggressive media like sour environments. In such applications where stainless steel is generally used, Hardiall® demonstrates excellent resistance to metal-to-metal wear. Thus providing a reduction of failures and hence maintenance downtimes.
For these applications Lebronze alloys integrated supply chain is able to propose ready-to-use products.
Many other developments in Defense, Industrial, Metallurgy, Renewable Energy and Ship Building.
Based on your specific application Hardiall can offer thanks to its unique combination of surface and mechanical properties a technical and economical valid alternative Beryllium Copper, Nickel based Corrosion Resistant Alloys (CRAs), Titanium, Precipitation Hardening Steels, Stainless Steel and Manganese Bronzes
Working closely with our partners, alongside customers, engineers and experts within the approval bodies, where we strive to exceed markets expectations
Lebronze alloys is willing to expand the applications of high strength alloys with this new Copper-Nickel-Tin product, along with existing Aluminum Bronzes and age hardening Copper-Nickel-Silicon alloys:
Hardiall® benefits from a fully integrated manufacturing process and a global distribution network:
Composition, standards, norms: CuNi15Sn8 ; UNS C72900 ; ASTM B 505 ; AMS 4596, 4597, 4598
For a higher level of stock availability and services, Lebronze alloys has partnered with selected distributors our Hardiall® products. Distribution partners per countries include: