Tungsten Bar and Rod

Tungsten Bars and Rods are incredibly dense and high-performing materials, celebrated for their remarkable hardness, heat resistance, and ability to resist corrosion. Produced and supplied by Russ Fasteners in Singapore, Pulau Ujong, these bars and rods find their way into industries that demand materials capable of enduring intense thermal and mechanical stress. They’re perfect for applications in aerospace, defense, medical, and electronics sectors. Thanks to their excellent dimensional stability and wear resistance, tungsten products consistently perform well in high-temperature and high-pressure environments, making them the go-to choice for precision components and specialized tooling.

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What is Tungsten Bar and Rod?

Typically, Tungsten Bars and Rods are made up of 99.95% pure tungsten. They boast a melting point of about 3422°C and a boiling point of 5555°C, along with a hefty density of around 19.3 g/cm³. These products showcase impressive mechanical properties, including a tensile strength of up to 1000 MPa and a hardness level ranging from 200 to 400 HV. Tungsten also stands out for its exceptional thermal and electrical conductivity, coupled with a low coefficient of thermal expansion, ensuring it remains stable even in extreme conditions.

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Tungsten Bar and Rod Specification

Standards :	ASTM F288 / ASME SF288
Thickness :	Range from .008″ to .0125″
Hardness :	Soft, Hard, Half Hard, Quarter Hard, Spring Hard etc.
Form :	Round Bar, Wire
Tungsten Grades	HA 190 / HA 1925 / HA 195 / HE 390 / HE 3925 / HE 395 / HE 397

Chemical Compositions of Tungsten Bar

Element	R05255 (Ta10W) (%,Max)	R05252 (Ta2.5W) (%,Max)
C	0.01	0.01
O	0.015	0.015
N	0.01	0.01
H	0.0015	0.0015
Fe	0.01	0.01
Mo	0.02	0.02
Nb	0.1	0.5
Ni	0.01	0.01
Si	0.005	0.005
Ti	0.01	0.01
W	9.0–11.0	2.0–3.5

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Frequently Asked Questions (FAQ)

Are Tungsten Rod Susceptible To Galvanic Corrosion?

Tungsten rods are not highly susceptible to galvanic corrosion because they are highly resistant to corrosion in most environments. However, if paired with more reactive metals, galvanic corrosion may occur.

Can Tungsten Bar Be Welded?

Yes, Tungsten bars can be welded using specific techniques such as TIG (Tungsten Inert Gas) welding. However, proper preparation and high heat are required due to Tungsten's high melting point.

How Do I Maintain Tungsten Rod?

Maintain tungsten rods by storing them in a dry, clean area to prevent oxidation. Avoid bending or exposing them to extreme heat. Regularly inspect for damage and handle with care.

Tungsten Bar and Rod Uses

Tungsten Bars and Rods are utilized across a wide array of critical applications. In aerospace and defense, they act as counterweights, kinetic penetrators, and radiation shielding. In the electronics field, they play a role in creating filaments, cathodes, and electrical contacts. The medical industry relies on tungsten for shielding in diagnostic equipment and radiation therapy. Moreover, they are essential in high-temperature furnace parts, welding electrodes, and precision tooling. Their unmatched durability, thermal resistance, and stability under pressure make them indispensable for high-performance industrial systems.

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