Materials
We specialize together with our partners in developing and engineering high-performance materials tailored to the most demanding applications. Our expertise in metals and machining ensure that our components meet and exceed industry standards for strength, durability, and precision.
Material Concepts Tailored to Functional Requirements
The WECOBA alloy portfolio is structured into two clearly defined material classes, each developed to address specific functional priorities in demanding industrial applications. This classification allows precise material selection based on the dominant operating conditions, whether the focus is on thermal and electrical performance or on mechanical durability and environmental resistance.
WECOBA
Letter Grades
Optimized for Thermal and Electrical Performance.
WECOBA alloys designated by a letter are primarily developed for applications where thermal and electrical conductivity are the dominant performance requirements. These materials are used wherever efficient current transfer, controlled heat dissipation, and stable electrical contact are essential.
Typical applications include:
Resistance welding electrodes
Electrical contact components
Thermally loaded interfaces
Casting and cooling elements
High-current conductive parts
In these applications, WECOBA letter grades provide a carefully balanced combination of conductivity and mechanical stability. While maintaining excellent thermal and electrical properties, the alloys are designed to offer improved resistance to softening, deformation, and surface degradation under continuous thermal cycling.
This makes WECOBA letter grades particularly suitable for processes involving high current densities, short cycle times, and repeated heating and cooling, where consistent performance over time is critical.
WECOBA
Number Grades
Engineered for Wear Resistance, Corrosion Protection and Structural Stability
WECOBA alloys designated by a number are developed for applications where mechanical durability and resistance to harsh environments are the primary concerns. These materials are selected for components exposed to friction, abrasion, high contact pressures, corrosive media, or long-term mechanical loading.
Typical applications include:
Wear and sliding components
Bearings, bushings, and guiding elements
Machined machine parts
Components exposed to corrosive atmospheres
Structural parts with high service-life requirements
WECOBA number grades focus on enhanced resistance to wear, corrosion, and mechanical fatigue. Their alloy composition and microstructure are designed to deliver stable performance under load, minimizing dimensional changes and surface damage over extended operating periods.
These materials are especially well suited for applications where maintenance access is limited and where predictable, long-term reliability is essential for cost-efficient operation.
WECOBA
COPPER-NICKEL
Copper-Nickel Alloys for Superior Corrosion Resistance and Marine Applications
WECOBA copper-nickel alloys with 10%, 14%, and 30% nickel content are specifically for applications where corrosion resistance, mechanical stability, and reliability under demanding environmental conditions are essential. Particularly in seawater and offshore environments, these alloys demonstrate excellent resistance to corrosion, biofouling, and stress corrosion cracking.
Typical materials such as CuNi10, CuNi14, and CuNi30 are widely used for components that are continuously exposed to saline environments, elevated temperatures, and mechanical stress.
Typical applications include:
Components for seawater and offshore systems
Piping, valves, and fittings in marine systems
Pump components and heat exchangers
Shipbuilding and marine engineering components
Precision-machined machine and structural parts in corrosive environments
WECOBA copper-nickel alloys offer an excellent combination of corrosion resistance, strength, and long-term stability. The optimized alloy composition ensures high resistance to seawater, aggressive media, and thermal stress, while maintaining good machinability and structural integrity.
HIGH CONDUCTIVITY
We work with high-performance metals engineered for extreme conditions:
HIGH CONDUCTIVITY
COPPER ALLOY
WECOBA® Z
Electrodes, holders and inserts, Electrode caps
Crucibles, moulds and cooling plates for continuous casting (Aluminium and Steel)
Current-carrying springs and contacts
Cr CHROMIUM | Zr ZIRCONIUM | OTHERS | Cu COPPER |
1.0 | 0.1 | max. 0.2 | balance |
Excellent electrical conductivity
Significantly higher strength and hardness compared to pure copper
Combines the advantages of CuCr and CuZr alloys in a single material
High thermal stability, even at elevated temperatures
Outstanding creep resistance
HIGH CONDUCTIVITY
COPPER ALLOY
WECOBA® S
Core inserts for injection moulding tools
Plunger tips
Electrodes and holders for resistance welding processes
Spot welding and seam welding electrodes
Various applications for heat dissipation
Ni NICKEL | Si SILICON | Cr CHROMIUM | Cu COPPER |
2.4 | 0.7 | 0.4 | balance |
Excellent electrical and thermal conductivity
High strength and hardness
High thermal stability at elevated temperatures
Good corrosion resistance
Beryllium- free (alternative to Beryllium Products such as CuCoNiBe…)
HIGH CONDUCTIVITY
COPPER ALLOY
WECOBA® N
Core inserts and components for injection moulding tools
Blow moulding and thermoforming tools
Welding fixtures
Moulds for non-ferrous metal casting
Ni NICKEL | Si SILICON | Cr CHROMIUM | OTHERS | Cu COPPER |
7.0 | 2.1 | 0.9 | max. 0.5 | balance |
Highest strength and hardness among beryllium-free alloys
Very good electrical and thermal conductivity
High thermal stability
Good corrosion resistance
Beryllium-free alternative to CuBe2
HIGH CONDUCTIVITY
COPPER ALLOY WITH BERYLLIUM
WECOBA® D
Electrodes and holders for spot, seam, butt and projection welding
Hot runner nozzles
Plunger tips aluminium die casting
Moulds and cooling plates
Co COBALT | Ni NICKEL | Be BERYLLIUM | OTHERS | Cu COPPER |
1.0 | 1.0 | 0.5 | max. 0.5 | balance |
Balanced combination of mechanical and physical properties
High electrical and thermal conductivity
High strength and hardness
High thermal stability at elevated temperatures
Very high creep resistance
HIGH CONDUCTIVITY
COPPER ALLOY WITH BERYLLIUM
WECOBA® B
Highly loaded components for flash butt and projection welding
Spark-free and non-magnetic manual tools
Mould inserts, cooling plates and cooling pins
Co COBALT | Ni NICKEL | Be BERYLLIUM | Co+Ni+Fe | Cu COPPER |
min. 0.2 | 1.9 | max. 0.6 | balance | |
Highest hardness and tensile strength among low-alloy copper materials
High electrical and thermal conductivity
High thermal stability at elevated temperatures
Very high creep resistance
Suitable for mould making applications involving abrasive plastics
HIGH STRENGTH
Innovative materials that provide strength, flexibility and corrosion resistance:
HIGH STRENGTH | WEAR RESISTANCE
ALUMINIUM BRONZE
WECOBA® 190
Bearings and bushings
Gears and worm gears
Sliding elements and wear parts
Guide strips and sliding blocks
Keys and spindle nuts
Pinions, bevel gears, levers and housings
Sealing rings and wipers
Al | Fe |
| Cu |
ALUMINIUM | IRON | OTHERS | COPPER |
11 | 3.5 | max. 0.5 | balance |
Higher strength and hardness compared with other alloys in this material group
Balanced ratio of toughness and ductility for high load capacity
Very good corrosion resistance suitable for aggressive fluids.
High wear resistance supporting extended service life
Very good sliding properties suitable as a mating material for stainless steel
Proven performance under severe operating conditions including marine environments and heavy-duty machinery
Versatile use across a wide range of mechanical engineering applications
HIGH STRENGTH | WEAR RESISTANCE | HIGH FATIGUE RESISTANCE
ALUMINIUM BRONZE
WECOBA® 270
Bearings, bushings, shafts, journal bearings and gears
Valves, valve seats, flanges and high-temperature steam fittings
Sliding elements, wear parts and guide strips
Al ALUMINIUM | Fe IRON | Ni NICKEL | Mn MANGANESE | OTHERS | Cu COPPER |
10.8 | 5.0 | 5.4 | 1.0 | max. 0.5 | balance |
High strength and hardness suitable for extreme mechanical loads and elevated temperatures
Balanced combination of toughness and ductility for highly loaded components
Very good corrosion wear and heat resistance
Good sliding properties ensuring reliable performance at low and high contact pressures
Proven performance under extreme operating conditions including marine applications and high-performance components
Performance exceeding standard nickel aluminum bronzes with extended service life and increased reliability
HIGH STRENGTH | WEAR RESISTANCE
ALUMINIUM BRONZE
WECOBA® 290
Bending mandrels and spherical segments for tube forming
Grinding prism and grinding straightedges
Sliding elements and wear parts
Guide elements
Slide elements for plastic injection moulds
Al ALUMINIUM | Fe IRON | Mn MANGANESE | OTHERS | Cu COPPER |
13.0 | 4.2 | 0.8 | max. 0.5 | balance |
High strength and hardness
High compressive strength
Very good corrosion and wear resistance
Good sliding properties suitable as a mating material for stainless steel
HIGH STRENGTH | WEAR RESISTANCE
ALUMINIUM BRONZE
WECOBA® 330
Forming and bending tools especially bending mandrels
Deep Drawing tools, blank holders and punches
Stretch forming and profiling tools
Sliding elements and wear parts
Guide strips and pressure plates
Al ALUMINIUM | Fe IRON | Mn MANGANESE | OTHERS | Cu COPPER |
13.8 | 4.6 | 1.0 | max. 0.5 | balance |
High strength and hardness
High compressive strength
Very good corrosion and wear resistance
Good sliding properties suitable as a mating material for stainless steel
HIGH STRENGTH | WEAR RESISTANCE
ALUMINIUM BRONZE
WECOBA® 390
Deep Drawing tools, blank holders and punches
Stretch forming and profiling tools
Forming and bending tools
Sliding elements and wear parts
Guide strips and pressure plates
Slide elements for plastic injection moulds
Forming rolls and welding rolls for welded tubes
Al ALUMINIUM | Fe IRON | OTHERS | Cu COPPER |
Not intended for public release | |||
Highest hardness among aluminum bronzes
High compressive strength
Very good corrosion and wear resistance
Good sliding properties suitable as a mating material for stainless steel
Magnetic permeability close to neutral
CORROSION RESISTANT
We work with high-performance metals engineered for extreme conditions:
HIGH CORROSION RESISTANCE
COPPER NICKEL ALLOY
WECOBA® Ni10
Components for piping systems and plant engineering, particularly in seawater-carrying installations, such as fittings including flanges, valves, connectors and joint elements
Plates and tube sheets for heat exchangers and condensers, as well as feedwater preheaters (low pressure), freshwater generators, air conditioning systems, process equipment, finned tubes and brake lines
High-quality alternatives for bolts and nuts, particularly as an upgrade where corrosion-related loads exceed the performance limits of nickel aluminium bronzes
Ni | Fe | Mn | Zn | Co | Pb | P | Sn | S | C |
| Cu |
NICKEL | IRON | MANGAN. | ZINC | COBALT | LEAD | PHOSPHOR | TIN | SULFUR | CARBON | OTHERS | COPPER |
10.0 | 1.6 | 0.7 | max. 0.5 | max. 0.1 | max. 0.2 | max. 0.2 | max. 0.3 | max. 0.05 | max. 0.05 | max. 0.2 | balance |
Excellent resistance to corrosion, cavitation and erosion
Very good balance between mechanical load capacity and durability
HIGH CORROSION RESISTANCE
COPPER NICKEL ALLOY
WECOBA® Ni30
Components for piping systems and plant engineering, particularly in seawater-carrying installations, such as fittings including flanges, valves, connection and joint elements
Plates and tube sheets for heat exchangers and condensers, as well as feedwater preheaters (low pressure), freshwater generators, air conditioning systems, process equipment, finned tubes and brake lines
High-quality alternatives for bolts and nuts, particularly as an upgrade where corrosion-related loads exceed the performance limits of WECOBA® Ni10
Ni | Fe | Mn | Zn | Co | Pb | P | Sn | S | C |
| Cu |
NICKEL | IRON | MANGAN. | ZINC | COBALT | LEAD | PHOSPHOR | TIN | SULFUR | CARBON | OTHERS | COPPER |
31.0 | 0.6 | 1.0 | max. 0.5 | max. 0.1 | max. 0.2 | max. 0.2 | max. 0.3 | max. 0.3 | max. 0.05 | max. 0.2 | balance |
Excellent resistance to corrosion, cavitation and erosion
Excellent balance between mechanical load capacity and durability
HIGH CORROSION RESISTANCE
COPPER NICKEL ALLOY
WECOBA® Ni14
This alloy is used for fittings as well as for screws, nuts, shafts, and connectors.
It is particularly suitable for applications in seawater environments and for non-magnetic components in marine engineering.
Other typical applications include short-circuit rings for electric motors.
The material is also used in the production of plain bearings (bushings).
Ni | Fe | Mn | Zn | Si | Al |
| Cu |
NICKEL | IRON | MANGAN. | ZINC | SILICON | ALUMINIUM | OTHERS | COPPER |
14.0 | max.1.5 | max.1.0 | max. 0.3 | max. 0.1 | 2.5 | max. 0.5 | balance |
Excellent resistance to corrosion, cavitation and erosion
Higher strength than WECOBA® Ni10 (CW352H)
Non-magnetic
STANDARD ALLOYS
EN | DIN | UNS
We work with high-performance metals engineered for extreme conditions:
Materials
Engineered for
Performance
WECOBA METAL partners with industry leaders to deliver custom-engineered solutions that set new benchmarks for innovation. Whether for medical, food or industrial applications, our expertise in advanced materials drives the future of manufacturing.
Want to explore how WECOBA METAL materials can elevate your next project?
