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Applications Of Tungsten Bars
1) For production of filaments for lamps of coiled-coil or three-coiled incandescent
Lamp, fluorescent lamp, halogen lamp, auto lamp and hi-color temperature lamps,
etc.
2) For making supports and electron tubes
Featrues Of Tungsten Bars
1) Size: Dia1.0mm Min*L2000mm Max.
2) Material: Pure tungsten and tungsten alloy
3) Property: Good winding property, non-sag, high temperature resistance
Polished/ground Tungsten Bars:
Tungsten has the highest melting point of all metals and is therefore also suitable for very high-temperature applications. It is also characterized by a uniquely low coefficient of thermal expansion and a very high level of dimensional stability.
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Diameter, mm ( inch )
Diameter Tolerance,mm
Length, mm
Length Tolerance, mm
Standard Â
1.0 ( 0.040 )
±0.05
50, 75, 150, 175
±1.0
1.6 ( 0.0625 ) 2.0 ( 0.0781 ) 2.4 ( 0.0938 )
3.2 ( 0.125 )
±0.1
4.0 ( 0.156 ) 4.8 ( 0.187 ) 6.4 ( 0.250 ) 8.0 ( 0.312 )
10.0 ( 0.391 )
Â
Designation
Composition
Color Mark
Dioxide
Dioxide in%
Impurites %
Tungsten %
WP
-
≤0.20
99.8
Green
WT20
ThO2
1.70-2.20
Remainder
Red
WZr3
ZrO2
0.2-0.4
Brown
WZr8
0.70-0.90
White
WL10
La2O3
0.90-1.20
Black
WL15
1.40-1.60
Gold
WL20
1.90-2.10
Blue
WC20
CeO2
1.80-2.20
Gray
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Our services:
1:Good after sales service: Any small problem happening will be solved at the most prompt time.
2. We have many years of experience, we have specializing in fastener.Â
3. Specifications list is available upon your requirement.Â
4. Packing as your request before shipment.Â
5. High quality and competitive price.
Our company profile :
Our company information: Guangzhou 247 International Trade Co. Ltd is a company for all kind of construction items supply to overseas. We office various types of high quality construction material and hardware items such as iron nail, fastener screws ,building wires, wire meshes welding consumables, and garden &farming tools, labor protection items.
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Picture show :
Model NO.: WL20
Slag Characteristic: Acidic
Stainless Steel Welding Rod Type: Chromium Stainless Steel
Function: Gravity Electrode
Welding Power: DC
Product Name: Tungsten Electrodes
Wire Diameter: 1.6mm-4.0mm
Color: Silver
Size: 250mm-400mm
Quality: High Quality
Delivery: 15-30days
Sample: Free Sample
Our Advantage: High Quality and Low Price
MOQ: 100 Boxes
Price Term: CIF, FOB, EXW
Trademark: J&J
Transport Package: 20kg Per CTN or as Special Requirements
Specification: SGS
Origin: Guangdong China
HS Code: 8101999000
Tungsten Electrodes also called igh Quality Tungsten Bars, Tungsten Rods.