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Tungsten Bar

CAS No.: 7440-33-7

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Features

CAS No.:	7440-33-7
Linear Formula:	W
Material:	Pure Tungsten
Purity:	99.95%, 99.99%, 99.999%
Density:	Sintered tungsten rod: ≥18.3g/cc Forged tungsten rod: ≥18.5g/cc
Process:	Pressing-sintering-forging-surface treatment
Surface:	Wire cut & chemical cleaned Turning & grinding surface for width >1"
Size:	5mm-100mm x 10mm-100mm x L<1000mm 0.2"-4" x 0.4"-4" x L< 40"

Tungsten Bar Description

Pure tungsten blanks, which are made from tungsten powder by powder metallurgy, are the raw products to process tungsten bars. The purity is usually ≥99.95%.

According to the different cross-section shapes, tungsten bars can be divided into round tungsten bars, rectangular tungsten bars, square tungsten bars, hexagonal tungsten bars and so on. Pure tungsten could be worked by forging, drawing, extruding and rolling. Tungsten bar is very stable. It does not react with air, water, HCl or sulfuric acid in normal atmospheric temperature. When it is heated to 80~100℃, it will weakly react with acid. Tungsten bar is easy oxidized under oxygen atmosphere.

Tungsten bar may be purchased from SSC in bulk or small quantity.

The tungsten bars with the purity of 99.999% are mainly used as materials for high standard bearing steels, automobiles, high-speed railways, high precision equipment, and high-tech weapons. The tungsten bars with the purity of 99.99% are mainly used in alloy tool steel, high-quality clean steel, and special high-performance steel, etc. The tungsten bars with a purity of 99.95% are used as raw materials for special steel and steel wire. And it is also widely applied in the high-temperature furnace, vacuum furnace, and sapphire crystal furnace. Tungsten bar is also used to make guns, artillery rockets, satellite airplanes, and ships.

Chemical Composition of Tungsten Bar

W (>%)	Chemical Content (<%)
99.999 PT74-TBSW1	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 PT74-TBSW2	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 PT74-TBW3	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 Bar Applications and Related Industries

● Heat conductor

● Additive

● Crankshaft and cylinder barrel of the automobile

● Electrode

● Bearing steel

● Automobiles

● High-speed railway

● High precision equipment

● High-tech weapons

● Alloy tool steel

● High-quality clean steel

● Special steel

● Steel wire

● High-temperature furnace

● Vacuum furnace

● Sapphire crystal furnace

● Guns

● Artilleries

● Rockets

● Satellites

● Airplanes

● Ships

● Research & Laboratory

● Military

● Aerospace

● Aviation

● Electronics

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 Bars 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	133 J/kg · °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 Bars Health & Safety Information

Signal Word	Danger
Hazard Statements	H228-H315-H319
Hazard Codes	N/A
Precautionary Statements	P210-P305 + P351 + P338
Flash Point	Not applicable
Risk Codes	N/A
Safety Statements	N/A
RTECS Number	YO7175000
Transport Information	NONH
WGK Germany	nwg
GHS Pictograms	GHS07 Exclamation Point GHS02 Flame

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