V-shaped tungsten wire filaments

High purity, vacuum grade tungsten wire 0.50mm diameter, V-shaped filaments 12.7mm deep, with a bottom angle of 45?, either single wire or triple strand.ProductOverall LengthStrandsV-OpeningEMS7384076.2mmSingle19mmEMS7384276.2mmTriple16mmEMS7384488.9mmTriple

High purity, vacuum grade tungsten wire 0.50mm diameter, V-shaped filaments 12.7mm deep, with a bottom angle of 45?, either single wire or triple strand.

Product	Overall Length	Strands	V-Opening
EMS73840	76.2mm	Single	19mm
EMS73842	76.2mm	Triple	16mm
EMS73844	88.9mm	Triple	19mm

Tungsten has the highest melting point and lowest vapour pressure of all metals, and at the temperatures over 1650?C has the highest tensile strength. It has excellent corrosion resistance and is attacked only slightly by most mineral acids.

Tungsten is the most useful material used in vacuum evaporation technique, due to its special properties and cost factor.

Properties of Tungsten

Chemical symbol:	W
Atomic Radius:	2.02?
Atomic Volume:	9.53cm³/mol
Covalent Radius:	1.3?
Crystal Structure:	Body centered cube
Number of Electron (with no charge):	74
Atomic Number of Protons:	74
Number of Neutrons (most common/stable nuclide):	110
Ionic Radius:	0.62?
Cross Section:	18.5 barns ? 0.5

Please choose carefully. Returns of this item are subject to approval.

Code	Title	Size	Pack Size	Availability	Price
EMS73840	V-shaped tungsten wire filaments	76.2mm x 19mm	Pack/10	See above	$54.00 AUD

EMS73842	V-shaped tungsten wire filaments	76.2mm x 16mm	Pack/10	See above	$103.00 AUD

EMS73844	V-shaped tungsten wire filaments	88.9mm x 19mm	Pack/10	See above	$85.00 AUD