CuSn12Ni2 Bronze Alloy Powder for Laser Cladding, Thermal Spray, Marine Bearings & Industrial Wear-Resistant Components

Product Overview

GREENSTONE CuSn12Ni2 bronze alloy powder is a copper-tin-nickel alloy powder containing approximately 12% tin (Sn) and 2% nickel (Ni), engineered for applications requiring a combination of wear resistance, corrosion resistance, good friction behavior, mechanical strength, and reliable processability.

The alloy combines the inherent corrosion resistance and thermal conductivity of copper alloys with the strengthening effects of tin and nickel. It is particularly suitable for manufacturing, coating, restoration, and surface engineering of bearings, bushings, sliding components, valve parts, pump components, marine equipment, hydraulic components, and heavy-duty machinery parts.

GREENSTONE CuSn12Ni2 powder can be supplied in controlled particle-size distributions for laser cladding, thermal spraying, powder metallurgy, and other powder-based manufacturing processes. Particle morphology and size distribution can be selected according to the customer’s equipment and application requirements.

Excellent Wear and Friction Performance

CuSn12Ni2 tin bronze provides good resistance to sliding wear and friction, making it suitable for bearings, bushings, guide components, sliding surfaces, gears, wear plates, and other mechanically loaded components.

Its tribological characteristics make it especially useful where metallic surfaces operate under repeated contact, sliding, or moderate-to-heavy mechanical loads.

Enhanced Corrosion Resistance

The copper-tin-nickel alloy system provides good resistance to atmospheric, water, steam, and various industrial environments. Nickel further improves alloy strength and corrosion performance compared with conventional tin-bronze compositions.

This makes CuSn12Ni2 suitable for marine engineering, pumps, valves, hydraulic equipment, offshore components, and industrial machinery exposed to humid or corrosive operating environments.

High Strength and Durability

The addition of tin increases hardness and wear resistance, while nickel contributes to mechanical strength and structural stability. The resulting alloy provides a useful balance between strength, toughness, wear resistance, and machinability.

Good Machinability and Finishing Performance

CuSn12Ni2 coatings and deposited layers can be machined and finished after processing, making the powder suitable for dimensional restoration and functional surface manufacturing where final tolerances are achieved through subsequent machining.

Suitable for Laser Cladding and Surface Repair

CuSn12Ni2 powder can be used for laser cladding and laser metal deposition on compatible substrates when appropriate process parameters and transition strategies are applied.

Typical applications include restoration of worn bearing surfaces, bushings, sliding components, shafts, valve components, and other high-value industrial parts. Laser processing can provide localized deposition with controlled heat input and reduced material consumption compared with complete component replacement.

Thermal Spray Applications

Appropriate powder grades can also be used for thermal spray processes to produce functional bronze coatings for wear protection, friction control, dimensional restoration, and corrosion protection.

Particle-size distribution should be selected according to the specific thermal spray equipment and process.

Industrial Application Areas

Typical industries and components include marine engineering for bushings, bearing surfaces, valves and seawater-service components; heavy machinery for sliding bearings, wear plates and mechanical repair; hydraulic equipment for bushings, valve components and sliding surfaces; energy and industrial equipment for pumps, bearing assemblies and rotating machinery; and automotive and transportation equipment for wear-resistant bronze components.

Customizable Powder Specifications

GREENSTONE can provide different particle-size distributions according to the required manufacturing process. Powder morphology, flowability and particle-size distribution can be matched to specific laser cladding systems, powder feeders, thermal spray equipment, and powder metallurgy applications.

ParameterSpecification
ProductCuSn12Ni2 Bronze Alloy Powder
Alloy TypeCopper-Tin-Nickel Bronze
Base ElementCu (Copper)
Sn ContentApprox. 12 wt.%
Ni ContentApprox. 2 wt.%
Cu ContentBalance
Powder AppearanceCopper-brown / bronze metallic powder
Powder MorphologySpherical / near-spherical depending on production route
Typical Particle SizeCustomizable according to process
Laser Cladding GradeTypically 45–105 μm / 53–150 μm*
Thermal Spray GradeProcess-dependent / customizable
Fine Powder GradeAvailable according to application
DensityApprox. 8.7–8.9 g/cm³*
Melting RangeApprox. 850–1,000°C*
Main PropertiesWear resistance, corrosion resistance, good friction behavior, strength and machinability
Powder FlowabilityControlled according to particle-size specification
Laser CladdingSuitable with optimized process parameters
DED / Laser Metal DepositionSuitable for selected applications
Thermal SprayingSuitable
Powder MetallurgySuitable
Typical ComponentsBearings, bushings, sliding surfaces, valves, pumps, wear plates and mechanical components
Typical IndustriesMarine, heavy machinery, hydraulic equipment, energy, automotive and industrial manufacturing
Particle Size CustomizationAvailable
PackagingAvailable according to customer requirements

* Note: Values such as density, melting range and recommended particle size are typical engineering reference values rather than fixed batch specifications. Final chemical composition, particle-size distribution, apparent density, flowability and other powder characteristics should be confirmed according to the selected manufacturing process and supplied batch certificate.

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