PRODUCTS
Features
|
CAS No.: |
7440-33-7 |
|
Linear Formula: |
W |
|
Material: |
Pure Tungsten |
|
Purity: |
W≥99.9%, W≥99.99%, W≥99.995%, W≥99.999%, W≥99.9995% |
|
Particle Shape: |
Irregular tungsten powder, Spheroidal tungsten powder |
|
Appearance: |
Dark Gray Powder |
|
Size: |
1-10μm, -100mesh to +325mesh |
Product Description
Tungsten Powder (W) is a high-density, refractory metal powder widely used in metallurgy, electronics, aerospace, and advanced manufacturing. Due to its high melting point (3,422°C), superior hardness, and excellent electrical conductivity, tungsten powder is essential for producing tungsten carbide, sintered tungsten components, and high-performance alloys.
With its fine particle size, spherical morphology, and high purity, tungsten powder is ideal for 3D printing, thermal spray coatings, and high-density composites. It is also extensively used in radiation shielding, ammunition, and electrical contacts.
Features & Properties
✔ Ultra-High Density – Among the highest densities of any metal (19.3 g/cm³)
✔ Superior Heat Resistance – Melting point of 3,422°C (6,192°F)
✔ Excellent Electrical Conductivity – Used in electronic components & electrodes
✔ Outstanding Hardness – Ideal for wear-resistant coatings & tools
✔ High Purity Grades – Available from 99.9% to 99.999% purity
✔ Corrosion & Oxidation Resistance – Long-lasting performance in extreme environments
Product Standards
ASTM B777 – Standard for tungsten materials
MIL-T-21014D – Military-grade tungsten powder
ISO 9001:2015 – Certified quality management system
RoHS & REACH Compliance – Environmentally safe & non-toxic
Product Forms
🔹 Spherical Tungsten Powder – Ideal for 3D printing & additive manufacturing
🔹 Fine Tungsten Powder – Used in tungsten carbide & hard alloys
🔹 Coarse Tungsten Powder – Preferred for powder metallurgy & sintered parts
🔹 High-Purity Tungsten Powder – Essential for semiconductors & electronics
🔹 Nano Tungsten Powder – Engineered for advanced coatings & catalysts
Production Method & Production Equipments
Production Method
Tungsten Ore Processing – Extracting tungsten concentrates from ores
Chemical Reduction – Using hydrogen reduction of tungsten oxides (WO₃ → W)
Milling & Sizing – Producing specific particle sizes & morphologies
Purification & Quality Control – Ensuring high-purity tungsten powder
Production Equipments
Hydrogen Reduction Furnaces – Converts tungsten oxides into pure tungsten
Ball Milling Machines – For precise particle size control
Spray Drying Systems – To produce spherical tungsten powder
X-ray Diffraction (XRD) Equipment – Ensures phase purity
Scanning Electron Microscope (SEM) – For surface morphology analysis
Applications & Related Industries
🔹 Tungsten Carbide Manufacturing – Base material for cutting tools & wear-resistant coatings
🔹 3D Printing & Additive Manufacturing – Spherical W powder for high-performance parts
🔹 Electronics & Semiconductors – Used in electrodes, electrical contacts, & microchips
🔹 Aerospace & Defense – Essential for radiation shielding & high-density materials
🔹 Thermal Spray Coatings – Protects turbine blades & industrial equipment
🔹 Medical Applications – Used in X-ray shielding & radiation therapy
Synonyms
High-Purity Tungsten Powder
Fine Tungsten Metal Powder
W Powder
Spherical Tungsten Powder
Tungsten Nanoparticles
Health & Safety Information
Toxicity: Tungsten is non-toxic, but fine dust particles may cause respiratory irritation.
Handling Precautions: Use protective gloves, masks, & ventilation when handling powder.
Storage: Keep in a dry, sealed container, away from moisture & oxidizing agents.
Interesting Facts About Tungsten Powder
🔹 Used in NASA Space Missions – Tungsten powder is used in spacecraft shielding & propulsion.
🔹 Essential for Military Applications – Tungsten-based armor-piercing ammunition & counterweights.
🔹 Revolutionizing 3D Printing – Spherical tungsten enables high-density metal additive manufacturing.
Why Choose Us for Tungsten Powder?
✅ High-Purity W Powder – Available in 99.9% - 99.999% purity
✅ Custom Particle Sizes – Tailored for your specific application
✅ Strict Quality Control – XRD, SEM, & particle size analysis
✅ Fast Global Shipping – Reliable & secure delivery worldwide
Contact Us for Custom Tungsten Powder Solutions
Looking for high-quality Tungsten Powder? Contact us today for expert guidance & competitive pricing!
Tungsten Powder Specification
|
Specification |
Grade |
APS/BET/FSSS |
Oxygen (%, ≯) |
|
Ultra-Fine Size |
ZE03 |
3.1-5.2m2/g |
0.60 |
|
ZE04 |
2.0-3.5m2/g |
0.55 |
|
|
ZE06 |
0.50-0.70μm |
0.40 |
|
|
ZE07 |
0.60-0.80μm |
0.35 |
|
|
ZE08 |
0.70-0.90μm |
0.25 |
|
|
Fine Size |
ZW10 |
0.90-1.10μm |
0.20 |
|
ZW12 |
1.10-1.30μm |
0.15 |
|
|
ZW15 |
1.30-1.70μm |
0.12 |
|
|
Medium Size |
ZW20 |
1.80-2.20μm |
0.08 |
|
ZW25 |
2.30-2.70μm |
0.08 |
|
|
ZW30 |
2.80-3.20μm |
0.06 |
|
|
ZW35 |
3.30-3.70μm |
0.06 |
|
|
ZW40 |
3.80-4.50μm |
0.04 |
|
|
ZW50 |
4.50-5.50μm |
0.04 |
|
|
ZW60 |
5.50-6.50μm |
0.04 |
|
|
ZW70 |
6.50-7.50μm |
0.04 |
|
|
Coarse Size |
ZW80 |
7.50-8.50μm |
0.04 |
|
ZW90 |
8.50-9.50μm |
0.04 |
|
|
ZW100 |
9.00-11.0μm |
0.04 |
|
|
ZW120 |
11.0-13.0μm |
0.03 |
|
|
Ultra-Coarse Size |
ZW150 |
13.0-17.0μm |
0.03 |
|
ZW200 |
16.0-25.0μm |
0.03 |
|
|
ZW300 |
25.0-35.0μm |
0.03 |
|
|
ZW400 |
35.0-45.0μm |
0.03 |
|
Impurities (ppm, ≯) |
|||||||||
|
Al |
As |
Bi |
Ca |
Cd |
Co |
Cr |
Cu |
Fe |
K |
|
5 |
10 |
1 |
15 |
1 |
10 |
20 |
3 |
50 |
15 |
|
Mg |
Mn |
Mo |
Na |
Ni |
P |
Pb |
S |
Sb |
Si |
|
10 |
10 |
30 |
15 |
20 |
10 |
1 |
10 |
5 |
15 |
|
Sn |
Ti |
V |
|
|
|
|
|
|
|
|
3 |
10 |
10 |
|
|
|
|
|
|
|
Grades of High Purity Tungsten Powder
Grades Chemicals Compositions |
A |
2A |
3A |
4A |
|||||
|
Purity |
W≥99.99% |
W≥99.995% |
W≥99.999% |
W≥99.9995% |
|||||
|
Total Impurities Content |
≯100 ppm |
≯50 ppm |
≯10 ppm |
≯5ppm |
|||||
|
Impurities (ppm) |
Max |
Classical |
Max |
Classical |
Max |
Classical |
Max |
Classical |
|
|
Radioactive element |
U |
- |
- |
0.1 |
0.05 |
0.0008 |
0.0005 |
0.0002 |
0.0001 |
|
Th |
- |
- |
0.1 |
0.05 |
0.0008 |
0.0005 |
0.0002 |
0.0001 |
|
|
Alkali metal element |
Li |
1 |
0.5 |
0.02 |
0.01 |
0.01 |
0.003 |
0.01 |
0.003 |
|
Na |
5 |
5 |
0.5 |
0.2 |
0.1 |
0.05 |
0.05 |
0.01 |
|
|
K |
5 |
5 |
0.1 |
0.05 |
0.05 |
0.03 |
0.05 |
0.01 |
|
|
Mo, Re |
10 |
5 |
10 |
5 |
1 |
0.5 |
0.5 |
0.3 |
|
|
Fe, Cr |
10 |
5 |
2 |
0.7 |
0.5 |
0.1 |
0.3 |
0.1 |
|
|
Ca, Si, Cu, Ni, Al, Zn, Sn, Mn, Co, Hg, V |
2 |
1 |
0.5 |
0.3 |
0.2 |
0.1 |
0.2 |
0.1 |
|
|
P, As, Se |
2 |
1 |
0.5 |
0.2 |
0.2 |
0.1 |
0.2 |
0.1 |
|
|
B, Pb, Sb, Be, Ba, Bi, Cd, Ge, Nb, Pt, Mg, Zr, Au, In, Ga, Ag |
1 |
0.5 |
0.5 |
0.1 |
0.1 |
0.05 |
0.1 |
0.05 |
|
|
Others |
1 |
0.5 |
0.5 |
0.1 |
0.1 |
0.05 |
0.1 |
0.05 |
|
|
Gas Element |
O |
C |
N |
S |
H |
|
300～1000 |
30 |
30 |
10 |
30 |
Chemical Identifiers
|
Linear Formula |
W |
|
MDL Number |
MFCD00011461 |
|
EC No. |
231-143-9 |
|
Beilstein/Reaxys No. |
N/A |
|
Pubchem CID |
23964 |
|
SMILES |
[W] |
|
InchI Identifier |
InChI=1S/W |
|
InchI Key |
WFKWXMTUELFFGS-UHFFFAOYSA-N |
Tungsten Powder Properties (Theoretical)
|
Molecular Weight |
183.85 |
|
Appearance |
Silvery |
|
Melting Point |
3410 °C |
|
Boiling Point |
5900 °C |
|
Density |
19.3 g/cm3 |
|
Solubility in H2O |
N/A |
|
Electrical Resistivity |
5.65 μΩ ·m (27 °C) |
|
Electronegativity |
1.7 Paulings |
|
Heat of Fusion |
35.3 kJ/mol |
|
Heat of Vaporization |
806.7 kJ/mol |
|
Poisson's Ratio |
0.28 |
|
Specific Heat |
0.133 J/g mol (20 °C) |
|
Tensile Strength |
750 MPa |
|
Thermal Conductivity |
1.73 W/m K |
|
Thermal Expansion |
(25 °C) 4.5 µm·m-1·K-1 |
|
Vickers Hardness |
3430 MPa |
|
Young's Modulus |
411 GPa |
Tungsten Powder Health & Safety Information
|
Signal Word |
Danger |
|
Hazard Statements |
H228-H315-H319 |
|
Hazard Codes |
N/A |
|
Risk Codes |
N/A |
|
Safety Statements |
N/A |
|
RTECS Number |
YO7175000 |
|
Transport Information |
N/A |
|
WGK Germany |
3 |
|
GHS Pictograms |
GHS02 Flame
|
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