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Tungsten Wire

Tungsten Wire

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%

Surface:

Smooth

Size:

Per Requirements

 

Tungsten wire is a vital material in industries requiring high performance under extreme conditions. With its incredible melting point, density, and hardness, tungsten wire offers unmatched strength and reliability in high-temperature environments. It is used in a wide range of applications including electronics, aerospace, medical equipment, and more. Tungsten wire is renowned for its excellent tensile strength, corrosion resistance, and thermal conductivity.

 


 

Product Description

Tungsten wire is a versatile product known for its high strength and durability. Made from tungsten metal, which has the highest melting point of any element (3,422°C), tungsten wire is an essential material for applications that require high performance at elevated temperatures. Its remarkable resistance to wear and corrosion makes it perfect for high-stress and extreme environment conditions.

Tungsten wire is commonly used in electrical contacts, filaments, aerospace applications, and as an electrode in arc welding. Available in various diameters, it can be tailored to meet the specific needs of your application.

 


 

Features & Properties

High Melting Point: Tungsten wire can withstand temperatures up to 3,422°C, making it ideal for high-temperature applications like aerospace and manufacturing.

High Density: With a density of 19.25 g/cm³, tungsten wire provides exceptional strength and durability.

Tensile Strength: Tungsten wire has a high tensile strength, making it suitable for components under significant stress.

Corrosion Resistance: Tungsten wire resists oxidation and corrosion, even in extreme environments.

Electrical Conductivity: Excellent electrical conductivity for applications like filaments, electrical contacts, and welding electrodes.

 


 

Product Specifications

Purity: ≥99.95%

Diameter: Available from 0.025 mm to 2.0 mm (custom sizes available upon request).

Length: Custom lengths available to suit specific project requirements.

Surface Finish: Cleaned, polished, or as-drawn finishes.

Density: 19.25 g/cm³

Tensile Strength: Up to 550 MPa

Melting Point: 3,422°C

 


 

Product Standards

Manufactured according to ISO 9001 standards.

Compliance with international standards for aerospace, electronics, and medical industries.

 


 

Product Forms

Tungsten Wire in coils

Cut-to-length wire

Customized wire forms (e.g., straightened and cut wire)

 


 

Production Method & Production Equipment

Tungsten wire is manufactured using a process known as powder metallurgy, followed by drawing to achieve the desired dimensions and mechanical properties. The high-temperature sintering process ensures the wire maintains its strength and conductivity.

Production Method: Powder metallurgy, high-temperature sintering, drawing, and precision machining.

Production Equipment: Sintering furnaces, wire drawing machines, CNC machines, and precision cutting equipment.

 


 

Applications & Related Industries

Aerospace: Used in aerospace components such as filaments, heat shields, and engine components.

Electronics: Essential for electrical contacts, filaments in light bulbs, and welding electrodes.

Medical: Tungsten wire is used in radiation shielding, X-ray tubes, and other medical devices.

Welding: Tungsten wire is a key component in tungsten inert gas (TIG) welding electrodes.

Manufacturing: Used in manufacturing heavy-duty components and industrial equipment requiring durability and heat resistance.

 


 

Health & Safety Information

Toxicity: Tungsten itself is considered non-toxic. However, inhaling tungsten dust or fumes generated during machining or welding can be harmful. Proper ventilation and protective equipment should be used.

Precautions: Ensure proper protective gear (e.g., gloves, goggles, respiratory protection) is worn during processing and handling.

Storage: Tungsten wire should be stored in a cool, dry environment to avoid corrosion and ensure optimal quality.

 


 

Interesting Facts About Tungsten

Hardness: Tungsten is one of the hardest materials available, making it resistant to wear and abrasion.

Welding Applications: Tungsten wire is essential in TIG welding due to its excellent conductivity and high melting point.

Space Exploration: Tungsten is used in spacecraft and satellite components, thanks to its ability to withstand extreme temperatures in space.

 


 

Why Choose Us for Tungsten Wire?

Quality Assurance: Our tungsten wire is produced to the highest standards, ensuring optimal performance and reliability.

Customization: We provide tungsten wire in a variety of diameters and lengths to meet your specific requirements.

Expertise: With extensive experience in tungsten manufacturing, we deliver solutions tailored to your industry needs.

Global Reach: We offer worldwide shipping and fast delivery to ensure your projects are not delayed.

 


 

Contact Us Today

For more information or to place an order for Tungsten Wire, contact us today. Our team is available to assist with inquiries, custom orders, and delivery options.

 

Chemical Composition of Tungsten Wire

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 Wire Specification

Diameter
(µm)

Weight
(mg/200mm)

200mm Weight Tolerance (%)

Diameter Tolerance (%)

Grade 0

Grade 1

Grade 2

Grade 1

Grade 2

8

0.19

±3.0

±4.0

±5.0

N/A

14

0.59

±2.5

±3.0

±4.0

N/A

18

0.98

±2.0

±2.5

±3.0

N/A

40

4.85

±1.5

±2.0

±2.5

N/A

80

19.39

±1.0

±1.5

±2.0

N/A

300

272.71

N/A

±1.0

±1.5

N/A

350

N/A

N/A

±1.5

±2.0

d>500

N/A

N/A

±1.0

±1.5

Other dimensions can be customized.

Tungsten Wire Finish Conditions

Code

Condition

Code

Condition

Code

Condition

C

Chemical Cleaned

DS

Drawn + Straightened

EHS

Electrolytic Polished+ Annealed + Straightened

CS

Chemical Cleaned + Straightened

E

Electrolytic Polished

ES

Electrolytic Polished + Straightened

D

Drawn

EH

Electrolytic Polished + Annealed

H

Annealed

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 Wire 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 microhm-cm @ 27 °C

Electronegativity

1.7 Paulings

Heat of Fusion

8.42 Cal/gm mole

Heat of Vaporization

185 K-Cal/gm atom at 5660 °C

Poisson's Ratio

0.28

Specific Heat

0.0317 Cal/g/K @ 25 °C

Tensile Strength

750 MPa

Thermal Conductivity

1.73 W/cm/K @ 298.2 K

Thermal Expansion

(25 °C) 4.5 µm·m-1·K-1

Vickers Hardness

3430 MPa

Young's Modulus

411 GPa

Tungsten Wire 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

image003

GHS02 Flame

image004

 

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