90WNiFe Heavy Tungsten Alloy Syringe For Nuclear Shielded UseHeavy Tungsten Alloy Syringe is made of tungsten matrix (tungsten
content is generally 80%~98%) and a small amount of nickel, iron,
copper, cobalt, molybdenum, chromium and other elements.High
gravity tungsten alloy density as high as 15.20~18.70g/cm3, also
known as high gravity tungsten alloy or high density alloy
material.Because the tungsten alloy weighs more than twice as much
as the steel. Heavy Tungsten Alloy Syringe Chemical Composition| Chemical Composition | 90%W | 93%W | 95%W | 97%W | | State | Sinter | Vacuum | Forge | Sinter | Vacuum | Forge | Sinter | Vacuum | Sinter | Vacuum | Density
(g/cc) | 16.85-17.25 | 17.15-17.85 | 17.75-18.35 | 18.25- 18.85 | Hardness
(HRC) | 32 Max | 30 Max | 40 Min | 33 Max | 31 Max | 40 Min | 34 Max | 32 Max | 35 Max | 33 Max | | Tensile Strength (Max) | 770 Min | 900 Min | 1400
Max | 770 Min | 910 Min | 1440 Max | 735 Min | 920 Min | 700 Min | 850 Min | Yield Strength
(Mpa) | 620 Min | 620 Min | 1280 Max | 650 Min | 650 Min | 1340 Max | 650 Min | 650 Min | - | - | Elongation
(%) | 5 Min | 15 Min | 5 Min | 5 Min | 12 Min | 3 Min | 3 Min | 12 Min | 2 Min | 6 Min |
Heavy Tungsten Alloy Syringe Picture:Introduction and Feature of Tungsten Alloy SyringeTungsten alloy has a series of excellent properties, high
proportion: general specific gravity 16.5-18.75g/cm3, high
strength: tensile strength 700-1000mpa, strong light absorption
capacity: 30-40% higher than the general lead proportion, high
thermal conductivity: 5 times of mold steel; low thermal expansion
coefficient: only 1 / 2-1 / 3 of steel, good conductivity, good
welding and cutting performance. A common method for preparing heavy tungsten alloys is to mix the
desired amount of tungsten, iron, nickel or copper powder and then
cold pressure and liquid phase sintering to near full
density.During the liquid phase treatment, the matrix tungsten
alloy melts and part of the tungsten enters the solution to form
microtissue and large tungsten particles (20-60 m), which are
dispersed in the matrix alloy.
Application of Tungsten Alloy SyringeHeavy duty tungsten disks are ideal for shielding X-rays and gamma
rays. High density tungsten shielding (60% higher than lead). Heavy-duty tungsten alloy shielding is mainly used in collimator,
FDG container, multi-plate collimator, nuclear shielding, beam
shielding, vial shielding, PET syringe shielding, isotope container
and other fields.
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