Comprehensive Nickel-Based Alloy Powder Portfolio

GREENSTONE provides nickel-based metal powders covering applications from general-purpose wear-resistant coatings to severe corrosion and high-temperature service.

NiCrBSi self-fluxing alloy powders combine nickel with chromium, boron and silicon to provide good powder flowability, wetting behavior, self-fluxing characteristics and metallurgical bonding. Different chemistry and hardness levels can be selected for molds, shafts, sleeves, valve components, screws, plungers, pump parts and other wear components.

Nickel-based corrosion-resistant alloys, including Alloy 625, Alloy 825 and Hastelloy C-276 families, are designed for aggressive industrial environments involving chlorides, seawater, chemical media and corrosive process conditions. They are particularly suitable for oil & gas equipment, chemical-processing equipment, valves, pumps, marine components and corrosion-resistant overlays.

Nickel-based high-temperature alloys, including Alloy 600 and Alloy 718, provide combinations of oxidation resistance, thermal stability and mechanical performance for elevated-temperature applications.

Nickel-based tungsten carbide composite powders combine a ductile nickel-alloy matrix with hard WC particles. They are designed for severe abrasive and erosive wear applications such as mining components, oilfield tools, drilling components, screws, plungers, fan blades and heavy-duty wear surfaces.

Optimized for Laser Cladding and DED

Powder morphology and particle-size distribution can be optimized for stable feeding through coaxial or off-axis powder delivery systems. Suitable powder grades can provide:

• Stable and continuous powder feeding
• Good flowability and deposition consistency
• Strong metallurgical bonding in laser-cladded layers
• Controlled dilution with appropriate laser parameters
• Dense coatings with low porosity
• Multi-layer deposition capability
• Good machinability or high hardness depending on alloy selection
• Compatibility with automated laser cladding and robotic DED systems

Multiple Particle Size Distributions

Particle-size distribution can be selected according to the processing technology. Common ranges include:

15–45 μm / 15–53 μm – fine powder ranges for selected additive manufacturing and precision deposition processes.

45–106 μm / 53–106 μm – suitable for selected laser deposition and thermal spray applications.

53–150 μm / 45–150 μm – commonly used for laser cladding, DED, PTA and related powder-fed processes depending on equipment configuration.

Other particle-size distributions can be supplied according to the alloy, deposition process and customer requirements.

Wear, Corrosion and High-Temperature Protection

The nickel matrix provides excellent metallurgical versatility. Chromium contributes oxidation and corrosion resistance, while boron and silicon in self-fluxing compositions improve melting and wetting behavior. Alloying additions such as molybdenum, niobium, tungsten, cobalt and carbide reinforcement can further enhance performance under demanding operating conditions.

Depending on the selected alloy family, GREENSTONE nickel-based powders can be engineered for:

Wear Resistance: abrasive, adhesive, erosive and sliding wear protection.

Corrosion Resistance: chloride-containing, marine, chemical and process environments.

High-Temperature Performance: oxidation resistance and mechanical stability under elevated temperatures.

Hardfacing: restoration and reinforcement of worn industrial surfaces.

Additive Manufacturing & Repair: deposition of new geometry, dimensional restoration and functional surface enhancement.

Typical Industrial Applications

GREENSTONE nickel-based alloy powders are widely applicable to:

Oil & Gas: valves, valve seats, plungers, pump components, drilling and production equipment, sleeves and wear surfaces.

Chemical & Petrochemical: reactors, pumps, valves, process equipment and corrosion-resistant overlays.

Marine Engineering: seawater-exposed components, shafts, valves, pump components and corrosion-resistant surfaces.

Mining & Heavy Industry: wear plates, rollers, shafts, screws and abrasion-resistant components.

Mold & Tooling: glass molds, plastic molds, extrusion tooling, dies and dimensional restoration.

Power & Energy: high-temperature components, corrosion-resistant surfaces and repair applications.

Industrial Remanufacturing: restoration of worn shafts, sleeves, plungers, pump components, valve components and other high-value mechanical parts.

GREENSTONE Application-Oriented Powder Selection

Rather than selecting a powder solely according to hardness, GREENSTONE can match powder chemistry, particle-size distribution and deposition process to the actual substrate material, wear mechanism, corrosion environment, operating temperature and required coating properties.

This makes the powder portfolio particularly suitable for integrated laser cladding and DED solutions, where the powder, laser parameters, powder feeding and deposition strategy must work together as a complete process.