Nickel-Chromium Alloy Powder for Laser Cladding, HVOF Thermal Spray and High-Temperature Wear Protection
Product Overview
GREENSTONE Nickel-Chromium (Ni-Cr) Alloy Powder is a high-performance nickel-based metal powder developed for laser cladding, HVOF thermal spraying, plasma spraying, surface coating and industrial remanufacturing applications requiring excellent high-temperature oxidation resistance, wear resistance and thermal stability.
With nickel as the balance and approximately 20–23% chromium, the alloy is engineered to form protective chromium-rich oxide layers at elevated temperatures, helping protect industrial components against oxidation and surface degradation. The addition of molybdenum, silicon and controlled carbon further supports wear performance, coating integrity and high-temperature service capability.
The powder is produced by gas atomization to achieve a spherical morphology, controlled particle size distribution and reliable flowability. Multiple particle size ranges are available to accommodate different laser cladding and thermal spray processes.
GREENSTONE Ni-Cr alloy powder is suitable for demanding applications in aerospace, gas turbines, power generation, oil & gas, energy, industrial machinery, surface engineering and component remanufacturing.
Excellent High-Temperature Oxidation Resistance
The approximately 20–23% chromium content promotes the formation of a protective chromium oxide layer under elevated-temperature conditions, improving oxidation resistance and helping extend component service life in severe thermal environments.
This makes the alloy suitable for turbines, energy equipment, industrial machinery and other components exposed to repeated high-temperature service.
High Wear and Surface Protection Performance
The nickel-chromium alloy system provides a combination of toughness, wear resistance and coating stability. Depending on deposition parameters and subsequent heat treatment, deposited coatings can achieve approximately 300–400 HV in the as-sprayed condition and up to approximately 600 HV after suitable post-heat treatment.
Designed for Laser Cladding
The powder can be processed by laser cladding to produce metallurgically bonded protective layers on industrial components.
Typical applications include:
- Shaft and rotating component protection
- Turbine and energy component repair
- Oil & gas component surface protection
- Industrial machinery wear protection
- High-temperature component remanufacturing
- Corrosion- and oxidation-resistant surface modification
Suitable for HVOF Thermal Spraying
GREENSTONE Ni-Cr alloy powder is also suitable for High-Velocity Oxygen Fuel (HVOF) thermal spraying, enabling dense protective coatings with strong adhesion and excellent surface performance.
Particle size distributions can be selected according to the specific spray equipment and coating requirements.
Compatible with Plasma Spray Processes
In addition to laser cladding and HVOF, the alloy powder can be used in compatible plasma spray processes for high-temperature protective coatings and surface engineering applications.
Gas-Atomized Spherical Powder
Gas atomization provides a highly spherical powder morphology with good flowability and controlled particle size distribution.
These characteristics support:
- Stable powder feeding
- Uniform deposition
- Consistent coating formation
- Reliable processing
- Improved batch-to-batch repeatability
Low Oxygen Content
Typical oxygen content can be controlled below 500 ppm, helping minimize oxidation of the feedstock and supporting consistent coating quality.
Excellent Thermal Shock Resistance
The Ni-Cr alloy system provides good stability under repeated heating and cooling cycles, making it suitable for components exposed to thermal cycling and demanding high-temperature operating environments.
Multiple Particle Size Options
Typical available particle size ranges include:
15–45 μm – Fine
5–25 μm – Fine
45–90 μm – Coarse
Particle size distributions can also be customized according to the laser cladding system, powder feeder, HVOF equipment or plasma spray process.
Broad Industrial Applications
GREENSTONE Nickel-Chromium Alloy Powder is suitable for aerospace, turbines, power generation, oil & gas, energy equipment, industrial machinery, surface engineering and industrial remanufacturing, particularly where components require a combination of high-temperature oxidation resistance, wear protection and coating durability.
| Parameter | Specification |
|---|---|
| Product Name | Nickel-Chromium Alloy Powder |
| Brand | GREENSTONE |
| Alloy Type | Nickel-Based / Nickel-Chromium (Ni-Cr) Alloy |
| Nickel (Ni) | Balance |
| Chromium (Cr) | 20–23% |
| Iron (Fe) | <5% |
| Molybdenum (Mo) | 2–4% |
| Silicon (Si) | 1–1.5% |
| Carbon (C) | 0.1–0.3% |
| Powder Manufacturing Process | Gas Atomization |
| Powder Morphology | Spherical |
| Standard Particle Size | 15–45 μm |
| Fine Particle Size | 5–25 μm |
| Coarse Particle Size | 45–90 μm |
| Customized Particle Size | Available |
| Melting Range | Approx. 1350–1400°C |
| Typical Hardness – As Sprayed | 300–400 HV |
| Typical Hardness – Post Heat Treated | Up to 600 HV |
| Density | Approx. 7.8 g/cm³ |
| Hall Flow Rate | <15 s/50 g |
| Typical Oxygen Content | <500 ppm |
| Recommended Processes | Laser Cladding / HVOF Thermal Spray / Plasma Spray |
| Key Properties | High-Temperature Oxidation Resistance, Wear Resistance, Thermal Stability |
| Typical Industries | Aerospace, Gas Turbines, Power Generation, Oil & Gas, Energy, Industrial Machinery |
| Typical Applications | Protective Coatings, Component Repair, Surface Engineering, Wear Protection, High-Temperature Component Remanufacturing |
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