Hardiall® is a wrought spinodally hardened copper alloy CuNi15Sn8 (C72900) designed for high strength applications where toughness is required. It is non-magnetic and resists mechanical wear, galling, stress relaxation, corrosion and erosion.
It is easily machined into complex components whilst being environment friendly, being recyclable and both lead and beryllium free.
Hardiall® is used within the automotive industry thanks to its outstanding physical and mechanical properties. Lebronze alloys has developed a full range of Copper Chromium, Copper Nickel Aluminum Bronzes, Spinodal Copper Nickel Tin grades all exceeding industry standards for use in many varied applications.
Standards : CuNi15Sn8 ; UNS C72900 ; ASTM B 505.
Hardiall® Key features & Benefits | |
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High strength and hardness |
Easy implementation |
Low friction |
Excellent galling resistance |
Corrosion & Erosion resistant |
Pitting and spalling resistance |
Non-magnetic |
No Hydrogen embrittlement |
Excellent lubricity |
High performance at both elevated and sub-zero temperatures -125℃ up to 300℃ |
Excellent wear resistance |
Dimensional stability |
Excellent machinability |
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.
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Available forms
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Composition
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UNS
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AMS & ASTM
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European Norms
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Download
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Safety sheet
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Hardiall® Aerospace | CuNi15Sn8 | C72900 | ASTM B 505 - ASTM B 929 - AMS 4596 - AMS 4598 - AMS 4597 |
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Hardiall® Automotive | CuNi15Sn8 | C72900 | ASTM B 505 |
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Hardiall® Mining | CuNi15Sn8 | C72900 | ASTM B 505 - AMS 4596 - AMS 4597 |
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Hardiall® Oil & Gas | CuNi15Sn8 | C72900 | ASTM B 505 - AMS 4596 - AMS 4597 | - | |||
Hardiall® Defense | CuNi15Sn8 | C72900 | ASTM B 505 - AMS 4596 - AMS 4597 | - | - |
Actuation systems friction bushings and bearings for primary and secondary flight controls, wheels and brakes and various aircraft systems attachments
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.
Heavy Mining Equipments and Vehicles Linkage Bushings and Bearings, Tri-Cone, Reamers HDD Tools DTH Tools Bushings, Thrust Washers
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.
Offshore Subsea Wellhead Controls, Manifold, Mud Pumps, , LWD MWD Components HDD tools crill bit bearings bushings trust washers ,ROV hydraulic connectors, Valves Trim
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.
Braking and Steering Systems (Brake caliper bushings, Steering bushings)
Hardiall® has a high strength and hardness, excellent machinability, maximum corrosion resistance and thushigh wear resistance under high loads, especially in critical lubrication conditions. Hardiall® is a key material for such technical issues. Motorsports, the forefront of innovation. Compared to conventional materials, Hardiall® enhances design optimization, with reduced mechanical clearances. It boosts performance and reliability, mainly used in powertrain, steering and braking systems.
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: