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Spherical molybdenum powder · High-purity molybdenum powder · Mo
Ultra-high melting point · Excellent fluidity · Specifically for additive manufacturing and high-temperature alloys 15-53μm / 0-25μm / 53-150μm

Molybdenum boasts a very high melting point, excellent high‑temperature strength, superior electrical and thermal conductivity, and a low coefficient of thermal expansion, making it a critical material for aerospace, the electronics industry, and energy‑related equipment. Spherical molybdenum powder is produced via non‑vacuum gas atomization, exhibiting excellent sphericity, outstanding flowability, and a narrow particle size distribution that eliminates internal porosity. The primary particle size ranges offered are 15–53 μm (for SLM 3D printing), 0–25 μm (for MIM injection molding), and 53–150 μm (for thermal spraying and powder metallurgy), with broad applications in aerospace high‑temperature components, semiconductor package heat sinks, sputtering targets, rocket nozzles, and plasma coatings. The core technical team originates from the Powder Metallurgy Research Institute at Central South University.

Process Advantages

High melting point · Heat-resistant

It has an extremely high melting point and maintains excellent strength and creep resistance at elevated temperatures, making it suitable for extreme‑environment applications such as rocket nozzles and turbine blades.

High purity · Low impurities

Excellent purity control and extremely low levels of critical impurities ensure consistent material performance and reliability.

High sphericity · Excellent flowability

Excellent sphericity, outstanding flowability, high apparent density, and uniform powder distribution; compatible with SLM/EBM and thermal spray processes.

Controllable particle size · Batch-to-batch consistency

Standard particle sizes: 15–53 μm, 0–25 μm, and 53–150 μm; narrow and well‑controlled particle size distributions; custom narrow‑range distributions available upon request.

Product Real Shots & Microscopic Morphology

SEM of 15–53 μm spherical molybdenum powder

Good sphericity, smooth particle surfaces, no satellite particles, and a concentrated distribution.

Real-life photos of the powder

Dark gray spherical powder, packaged in vacuum‑sealed aluminum foil bags or iron drums.

3D-printed/thermal-sprayed components

Rocket nozzles, semiconductor heat sinks, plasma coatings

Spherical molybdenum powder: high-purity refractory metal powder

Molybdenum boasts a very high melting point, excellent high‑temperature strength, superior electrical and thermal conductivity, and a low coefficient of thermal expansion, making it a critical material for aerospace, the electronics industry, and energy‑related equipment. Spherical molybdenum powder is produced via non‑vacuum gas atomization, exhibiting outstanding sphericity, completely eliminating internal porosity, and offering exceptional flowability. The powder’s purity is tightly controlled, with extremely low levels of impurities such as oxygen, carbon, and iron, thereby ensuring the high‑temperature performance and reliability of printed or sintered components. With a standard particle size of 15–53 μm, this product is well suited for SLM 3D printing, enabling the fabrication of complex, thin‑walled high‑temperature structures; an ultrafine fraction of 0–25 μm is ideal for MIM micro‑injection molding and heat‑sink applications; while a coarser 53–150 μm grade is optimized for plasma spraying and powder metallurgy compaction.

Chemical Composition (ppm, impurity limits except for Mo)

element Mo Al This Fe Magnesium Ni Yes C N O
Content (wt% / ppm) Bal. ≤20 ≤20 ≤100 ≤20 ≤50 ≤100 ≤100 ≤150 ≤1000

 

Particle Size Specifications & Physical Properties

Particle size specification D10 (μm) D50 (μm) D90 (μm) Loose packing density (g/cm³) Tap density (g/cm³) Hall flow rate (s/50g) Recommended Process
0-25μm ≤5 12-18 ≤28 ≥4.0 ≥5.2 ≤18 MIM micro-injection molding, ultrafine thermal spraying, slurry
15–53 μm 15-20 32-40 50-58 ≥4.8 ≥5.5 ≤15 SLM 3D printing, laser cladding
53-150 μm ≥45 80-110 ≤150 ≥5.0 ≥5.8 ≤14 Plasma spraying, powder metallurgy compaction, hot isostatic pressing

* Particle size can be customized to meet customer requirements, with narrow distribution ranges (e.g., 20–40 μm, 45–75 μm, etc.), and ultrafine powders down to -500 mesh are also available.

Parameter item Numerical value Note
Melting point 2620℃ Refractory metals, suitable for ultra-high-temperature environments.
Boiling point 5560℃ Extremely high boiling point, extremely low vapor pressure
Density (theoretical) 10.2 g/cm³ The density of sintered or printed parts can reach over 10.0 g/cm³.
Thermal conductivity (20°C) 138 W/(m·K) Good thermal conductivity
Linear thermal expansion coefficient (20–1000°C) 5.1×10⁻⁶ /°C Low thermal expansion and excellent dimensional stability.
Resistivity (20°C) 5.3 μΩ·cm Suitable for electronic packaging and electrode materials.

Typical application areas

Additive manufacturing

SLM/EBM 3D printing of molybdenum and molybdenum alloy components, including rocket nozzles, combustion chambers, and heat exchangers.

Electronics industry

Semiconductor package heat sinks, sputtering targets, metallization layers, and lead frames

Aerospace

Rocket nozzles, turbine blades, high-temperature fasteners, missile control surfaces

High-temperature components

Glass melting furnace electrodes, heating elements, radiation shielding screens, and sintering boats

Coating material

Plasma-sprayed protective coatings, ablation-resistant coatings, and wear-resistant coatings

Energy equipment

Nuclear reactor reflectors, medical X-ray target materials, and photovoltaic coating materials

Spherical Molybdenum Powder vs. Irregular Reduced Molybdenum Powder

Performance Dimension Spherical Molybdenum Powder (TIJO) Irregular reduced molybdenum powder
Liquidity ✓ Excellent (≤15s/50g) Poor (≥40 s/50 g, prone to clogging)
Loose packing density ✓ High (≥4.8 g/cm³) Low (2.5–3.5 g/cm³)
Printability/Spray Formability ✓ Even powder distribution, no caking effect Not suitable for SLM; severe spatter during spraying.
Sintering activity Moderate, with even and controllable contraction. High activity, inconsistent contraction.
Purity and Impurities ≥99.95%, oxygen content ≤1000 ppm Usually low, with high oxygen content.

Spherical molybdenum powder is the only choice for advanced additive manufacturing and thermal spray processes, significantly enhancing forming quality and product performance.

Process Recommendations and Parameters

Craftsmanship Recommended particle size Key parameters Product Performance
SLM printing 15–53 μm Laser power: 200–350 W; scanning speed: 800–1200 mm/s; layer thickness: 30–40 μm. Density ≥ 99%, room-temperature tensile strength ≥ 500 MPa
Plasma spraying 53–106 μm Power: 35–50 kW; powder feed rate: 25–40 g/min Coating porosity < 3%, with high bond strength.
MIM injection molding 0-25μm Catalytic degreasing + sintering at 1700°C Complex small molybdenum parts, with a density ≥ 9.8 g/cm³.

TIJO can provide support for optimizing process parameters, helping customers achieve the production of highly dense molybdenum components.

End-to-end testing capability

Laser Particle Size Analyzer Oxygen, Nitrogen, and Hydrogen Analyzer Scanning Electron Microscopy (SEM+EDS) Carbon-sulfur analyzer Hall flowmeter/vibrating density meter ICP-OES Elemental Analysis

Each batch of spherical molybdenum powder is tested for chemical composition (impurity content), particle size distribution, oxygen content, sphericity, flowability, and tapped/loose bulk density, with a Certificate of Analysis (COA) provided.

Packaging & Delivery

 

Powder packaging

Vacuum-sealed in a double-layer aluminum foil pouch (to prevent oxidation), with an outer iron or plastic drum.
Specifications: 1 kg, 5 kg, 10 kg, 25 kg, 50 kg per drum

 

Export packaging

Export orders are packed in wooden crates or palletized and reinforced to protect against moisture and impact.
Compatible with sea freight, air freight, and international express delivery.

 

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

Particle size customization, purity customization
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

Provide process parameter guidance.
Assisting customers in resolving challenges related to the machining of molybdenum components.

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.

WhatsApp:+86 181 4263 6992

E-mail: sales01@hntijo.com

Address: No.39, Liandong Yougu lnd. Park, Bachelor Street,Changsha City,Hunan Province, China.

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