Tungsten Powder

Tungsten Powder Data Sheet

Reference:	HMWW1113
Material:	Pure Tungsten
Purity:	99%, 99.9%, 99.95%, 99.99%, 99.999%
Particle Size:	Customized
CAS:	7440-33-7

Tungsten Powder

Tungsten Powder is a grey-black powder with a metallic luster and a melting point as high as 3400°C. It is produced by reducing tungsten trioxide or ammonium paratungstate (APT), with purity influenced by factors such as the reduction temperature, the amount of reducing agent, the movement of the reaction vessel, and the gas flow rate. Shanghai Yuepeng can also provide high-quality Spherical Tungsten Powder with various specifications for additive manufacturing industries.

Tungsten Powder Material Chemical Composition

W (>%)	Chemical Content (<%)
99.999 W1	Fe	Ca	Be	Sn	Al	Ni	Zn	Sb	Pt	K	Ta	Na
	0.0001	0.00005	0.000005	0.000005	0.00005	0.00001	0.00005	0.00005	0.00003	0.000005	0.0001	0.00005
	Cr	Pb	As	Mg	Ti	Bi	Mo	Cd	Cu	Ba	Co	Mn
	0.000005	0.00001	0.00005	0.00005	0.000005	0.00001	0.00001	0.000005	0.000007	0.00001	0.000005	0.000005
99.99 W2	Fe	Ca	Be	Sn	Al	Ni	Zn	Sb	Pt	K	O	Na
	0.0001	0.00045	0.0001	0.0001	0.0001	0.0001	0.0001	0.0001	0.0001	0.0005	0.0040	0.0009
	Cr	Pb	As	Mg	Ti	Bi	Mo	Cd	Cu	Ba	Co	Mn
	0.0001	0.0001	0.0001	0.0001	0.0001	0.0001	0.0002	0.0001	0.0001	0.0001	0.0001	0.0001
99.95 W3	Fe	Ca	P	Sn	Al	Ni	N	Sb	Si	O	Pb	As
	0.005	0.003	0.001	0.0001	0.002	0.003	0.003	0.001	0.003	0.003	0.0001	0.002
	Mg	C	Bi	Mo
	0.002	0.005	0.0001	0.001

Tungsten Powder Particle Size Distribution

Size	Description	Typical Uses
1-10 μm	Ultrafine grade	Additive manufacturing
10-25 μm	Fine grade	Powder injection molding
25-45 μm	Medium grade	Cutting tools
45-150 μm	Coarse grade	Tungsten heavy alloys

Tungsten Powder Physical Properties

Item	Value	Significance
Particle Size	1-150 μm	Smaller sizes improve sintering
Apparent Density	3-4 g/cm3	Indicating compaction properties
Tap Density	9-11 g/cm3	High packing density
Hall Flow Rate	20-25 s/50g	Good flow reduces the risk of powder clogging and jamming.
O Content	<1000 ppm	Affecting ductility and strength

Tungsten Powder Applications

• Cemented Carbide: Tungsten Powder is an important raw material for manufacturing cemented carbide.
• Electronics: Tungsten Powder is used to manufacture electrical contacts and electrodes in electronic devices.
• Aerospace: Tungsten Powder can be used to produce radiation shielding materials.
• Powder Metallurgy: Mixed with other metal powders, Tungsten Powder can be used to create a variety of tungsten alloys, such as tungsten-molybdenum alloys, tungsten-rhenium alloys, tungsten-copper alloys, and other high-density tungsten alloys.
• Thermal Spraying: Tungsten Powder is used in the thermal spraying process, widely used in the surface treatment of mechanical parts to form wear-resistant and corrosion-resistant coatings.

Tungsten Powder Packaging

The tungsten powder is carefully placed in wooden cases or cartons with additional support from soft materials to prevent any shifting during transportation. This packaging method guarantees the integrity of the products throughout the delivery process.