SiFON Electronic Materials Co.,Ltd

Appearance: It has metallic silver luster.
Density: min.19.15g /cm3
Thickness: 0.2mm - 2.0 mm.
Surface Condition
Material may be supplied with as-rolled, as-cleaned,
as-machined, or as-ground finish; dependent upon thickness .
Heat Treatment
Tungsten sheets are rolled and annealed to provide the optimum condition for the desired end use.
Standard:ASTM B760-86
Composition (PPM Max)

Appearance:it has metallic silver luster.
Density: min. 10.15g /cm3
Thickness: 2.0mm-40mm
Surface Condition:
Bright - Surface is chemically cleaned to remove all lubricants and oxides.
Ground - Surface is ground to remove all coating and to achieve precise thickness control
Standard:ASTM B760-86
Composition(PPM Max)

Applications:
For producing electric light source parts and electric vaccum components;
For producing heating elements and refractory parts in high temperature furnaces.
Chemical Composition:
W Content >99.95%
Other Element Content Total <0.05%
Each Element Content <0.01%
Surface Condition
Black - Surface is black,retaining a coating of processing lubricants and oxides.
Bright - Surface is chemically cleaned to remove all lubricants and oxides.
Ground - Surface is centerless ground to remove all coating and to achieve precise diameter control
Availability
The diameter is ranging from 0.5mm to 100mm.
Special requests are available.

•  Single wire of 15kg has no welding joint.
•  It is regular black with smearing graphite surface. After removing graphite, it has metallic luster.
•  Density: 19.25g /cm3.
•  Coils wrapped with waterproof paper and plastic bag inner and with carton box outside.

Tungsten twisted wires(Stranded wires)

3 cores, 4 cores , 7cords, 7x19=133 cores and so on....
• Bright surface with silver luster.

Applications:

•  Vaccum evaporation ,vacuum metallurgy application.
•  Vaccum coating on metal, plastic,ceramic , PVD
• Glass grobbers and stirrers, for mirror making.

Tungsten Filaments are used in vacuum evaporation .We can provide 1-8 strand, V shaped, Double V shaped, coiled and special shaped Tungsten Filaments.

Chemical Composition: WAl , W1.

Heavy Metals(WNiFe,WNiCu)

Heavy Metal(WNiFe,WNiCu)is often used as both a weight and structural member. Corrosion proof.Density 17.0-18.5 g/cm3.
Weights and counterbalances for aircraft control surfaces and rotor blades, guidance platforms, balancing of flywheels and crankshafts, vibration damping governors, and fuse masses and weights for self-winding watches are typical applications.
Other specific applications include: Radiation Shielding,Rotating Inertia Members,Projectiles...

Standards: ASTM-B-459-67

Tungsten Alloy containing various oxide additive

Application :
apply to protecting arc welding with inert gases and plasma jointing ,cutting ,spraying and smelting.
Properties:
high melting point ,steady electric arc ,without self-consume .Tungsten increasing 0.15-4% Tho2,Zro2,Lao2,Ceo2,which can reduce the loss of tungsten pole , prolong its life ,not pollute the welding seam ,increase Launching ability of tungsten pole electrons and so on .Therefore ,the quality of welding seam is high.
Standards:
ISO 6848 international standard and AWS5.12.
Surface condition:
smooth ,clean ,no defect ,no greasy dirt and other impurity.
Chemical composition

Tungsten Copper Composite Material
As a high performance material,Tungsten-Copper is characterized by high thermal conductivity, low thermal expansion and high wear resistance combined with excellent electrical conductivity.

Applications
High Voltage Arc Contacts, Vacuum Contacts, Electrodes for Resistant Welding and Spark Erosion.

Alloys and Properties