Other materials
3D Printing、MIM、HIP、Brazing、Spraying、Porous material、PM
Spherical chromium powder · High-purity metallic chromium powder · Cr
High sphericity · Low oxygen content · Specialized for high-temperature alloys and 3D printing 15–53 μm / 0–25 μm / 53–150 μm
Process Advantages
High purity · Low impurities
High chromium content and stringent control of key impurities ensure compliance with standards for high-temperature alloys and nuclear‑industry applications.
Spherical excellence · High fluidity
Excellent sphericity, superior flowability, and uniform powder distribution, making it well-suited for 3D printing and thermal spray processes.
High melting point · Heat-resistant
It exhibits a high melting point and excellent oxidation resistance and corrosion resistance at elevated temperatures, making it suitable for components and coatings in ultra-high-temperature environments.
Particle size is customizable.
Standard particle sizes of 15–53 μm, 0–25 μm, and 53–150 μm are available; narrow‑distribution ranges can be customized to meet diverse process requirements.
Product Real-World Photos & Microscopic Morphology
SEM of spherical chromium powder, 15–53 μm
Good sphericity, smooth surface, and uniform particle size distribution.
Real-life photos of the powder
Gray-white metallic powder, packaged in vacuum aluminum foil bags or iron drums.
3D-printed/thermal-sprayed components
Aeroengine blades, high-temperature-resistant coatings, nuclear shielding components
Spherical chromium powder: high-purity, high-temperature-resistant metal powder
Chromium is a high‑melting‑point, high‑hardness, corrosion‑resistant metal and an indispensable element in high‑temperature alloys, stainless steels, and wear‑resistant coatings. TIJO spherical chromium powder is produced via a non‑vacuum atomization process, delivering excellent sphericity, tightly controlled oxygen content, and outstanding flowability. The product boasts a high chromium content, with key impurities such as Fe, Si, Al, Mo, C, and N kept at extremely low levels, meeting aerospace‑grade material specifications. Particle sizes of 15–53 μm represent the mainstream range for SLM 3D printing, suitable for fabricating complex components from high‑temperature alloys; coarser powders in the 53–150 μm range are ideal for plasma spraying (APS) and high‑velocity oxy‑fuel (HVOF) processes, enabling the deposition of wear‑ and corrosion‑resistant coatings; while ultrafine powders down to 0–25 μm are used in metal injection molding (MIM) and precision thermal spraying. These products find extensive applications in aircraft engine turbine blades, hot‑section components of gas turbines, neutron reflectors for nuclear reactors, hard‑metal additives, and as feedstock for 3D‑printed metal powders.
Each batch of products is accompanied by a COA report (covering composition, particle size, oxygen content, sphericity, flowability, etc.) and supports third-party testing.
Chemical Composition (wt%, TIJO Internal Control)
| element | Cr (%) | Impurity content (ppm, not exceeding) |
|---|---|---|
| Standard | ≥99.9 | — |
| Fe | — | 200 |
| Yes | — | 100 |
| Al | — | 60 |
| Mo | — | 50 |
| Ti | — | 10 |
| W | — | 10 |
| Ni | — | 10 |
| C | — | 50 |
| S | — | 10 |
| N | — | 40 |
| O | — | 300 |
* Oxygen content is well controlled and can be further reduced through vacuum degassing. Chromium powder of higher purity is available upon customer request.
Key Particle Size Specifications & Physical Properties
| Particle size specification | Corresponding mesh count | D10 (μm) | D50 (μm) | D90 (μm) | Loose packing density (g/cm³) | Tap density (g/cm³) | Hall flow rate (s/50g) | Recommended Process |
|---|---|---|---|---|---|---|---|---|
| 0-25μm | -500 mesh | ≤5 | 12-18 | ≤28 | ≥2.8 | ≥4.0 | ≤32 | MIM micro-injection molding, ultra-fine thermal spraying, slurry |
| ★ 15-53μm | -270+500 mesh | 15-20 | 30-38 | 50-58 | ≥3.2 | ≥4.2 | ≤30 | SLM 3D printing, laser cladding, powder metallurgy |
| 53-150 μm | -100+270 mesh | ≥45 | 80-110 | ≤150 | ≥3.4 | ≥4.4 | ≤28 | Plasma spraying (APS), HVOF, hot isostatic pressing |
* Particle size can be customized to meet customer requirements, with narrow distribution ranges such as 10–30 μm, 20–40 μm, 45–105 μm, etc.; standard screened powders down to -200 mesh and -325 mesh are also available.
| Parameter item | Numerical value | Note |
|---|---|---|
| Density (theoretical) | 7.19 g/cm³ | The density of the sintered part can reach 7.0–7.1 g/cm³. |
| Melting point | 1907℃ | High melting point, suitable for ultra-high-temperature environments. |
| Boiling point | 2761℃ | Extremely high boiling point |
| Thermal conductivity (20°C) | 93.9 W/(m·K) | Good thermal conductivity |
| Linear thermal expansion coefficient (20–1000°C) | 8.4×10⁻⁶ /°C | Low thermal expansion and excellent dimensional stability. |
Typical application areas
Superalloy
Aerospace engine turbine blades, combustion chambers, and hot-end components of gas turbines
Surface Engineering
Plasma spraying, HVOF wear- and corrosion-resistant coatings, thermal barrier coatings
Additive manufacturing
SLM 3D-printed complex components made of chromium-based alloys, stainless steels, and high-temperature alloys.
Nuclear industry
Neutron reflector materials, nuclear shielding components, reactor structural parts
Powder metallurgy
High-density chromium targets, cemented carbide additives, metal injection molding
Electronic materials
Semiconductor sputtering targets, vacuum coating materials
Spherical Chromium Powder vs. Irregular Chromium Powder (Reduced/Electrolytic)
| Performance Dimension | Spherical chromium powder (TIJO) | Irregular chromium powder |
|---|---|---|
| Liquidity | ✓ Excellent | Poor; prone to clogging. |
| Loose packing density | ✓ High | Low |
| 3D Printing Adaptability | ✓ Even powder distribution, dense printing | Unable to use |
| Spray coating quality | ✓ Dense, with low porosity | Rough, with many pores |
| Purity and Oxygen Content | High purity, with well-controlled oxygen content. | Usually low, with high oxygen content. |
Spherical chromium powder is an ideal choice for advanced additive manufacturing and thermal spray processes, significantly enhancing part quality and coating performance.
Process Recommendations and Parameters
| Craftsmanship | Recommended particle size | Key parameters | Product Performance |
|---|---|---|---|
| SLM printing | 15–53 μm | Laser power: 150–300 W; scanning speed: 800–1200 mm/s; layer thickness: 30–50 μm. | Density ≥ 99%, with a smooth surface. |
| Plasma spraying | 45–106 μm | Power: 35–50 kW; powder feed rate: 25–40 g/min; Ar/H₂ shielding. | Coating porosity < 3%, with high bond strength. |
| MIM injection molding | 0-25μm | Feeding load: 88–92%; degreasing followed by sintering at 1300°C. | Complex small chrome parts |
TIJO can provide support for optimizing process parameters, helping customers rapidly achieve mass production.
End-to-end testing capability
Each batch of spherical chromium powder is tested for chromium content, impurity elements, particle size distribution, oxygen content, sphericity, flowability, and bulk/ tapped density. Additionally, mechanical properties and microstructure of printed/sprayed components are periodically sampled and inspected. A fully traceable Certificate of Analysis (COA) is provided for every batch.
Packaging & Delivery
Powder packaging
Vacuum-sealed in a double-layer aluminum foil pouch (to prevent oxidation), with an outer iron drum/carton.
Specifications: 500 g, 1 kg, 5 kg, 10 kg, 25 kg, 50 kg per drum
Export packaging
Export orders are packed in wooden crates or pallets and reinforced to protect against moisture and impact.
Compatible with sea, air, and international express shipping.
Delivery time
Standard particle size in stock; ships within 3–7 days after order confirmation.
Custom particle size or higher purity: 7–15 days
Batch Traceability
For each batch, a sample is retained, and the COA report is shipped with the goods.
Supports third-party testing (e.g., SGS)
Free sample
Free samples are provided for process validation.
Small-batch samples; bulk supply upon quality confirmation.
Customized Services
Customized particle size, higher purity, and lower oxygen content
Meets special operating conditions and equipment requirements.
Shipping documents
COA, MSDS, ingredient list, packing list
Meets export customs clearance requirements and customer in-plant inspection standards.
Technical Support
Providing SLM printing parameters, thermal spray process optimization, and MIM degreasing and sintering guidance.
Assist in resolving issues encountered during use.
Inquire Now for Free Samples
Fill out the form on the right or contact us directly; we will provide product samples, technical data sheets, and price quotes to help you quickly complete your additive manufacturing process validation.
Address: No.39, Liandong Yougu lnd. Park, Bachelor Street,Changsha City,Hunan Province, China.
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Address: No.39, Liandong Yougu lnd. Park, Bachelor Street,Changsha City,Hunan Province, China.
