95WNiFe Heavy Tungsten Alloy Collimator For Radiation ShieldingHeavy-duty tungsten alloy tanks are made of tungsten matrix
(tungsten content is generally 80%-98%) and a small amount of
nickel, iron, copper, cobalt, molybdenum, chromium and other
elements. The density of high specific gravity tungsten alloy can
reach 15.20~18.70g/cm3, also known as high specific gravity
tungsten alloy or high density alloy material. Because tungsten
alloy weighs more than twice as much as steel. SPECIFICATIONS Heavy Tungsten Alloy Collimator| 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 Collimator Picture: Introduction and Feature of Heavy Tungsten Alloy
CollimatorTungsten alloy has a series of excellent properties, high specific
gravity: general specific gravity 16.5-18.75g/cm3, high strength:
tensile strength 700-1000mpa, strong light absorption capacity:
30-40% higher than general lead specific gravity, high thermal
conductivity: mold 5 times that of steel; low thermal expansion
coefficient: only 1/2-1/3 of steel, good electrical conductivity,
good welding and cutting performance. A common method for making heavy tungsten alloys is to mix the
desired amount of tungsten, iron, nickel or copper powders, then
cold-press and liquid-phase sintering to near full density. During
the liquid phase treatment, the base tungsten alloy melts, and part
of the tungsten enters the solution to form a structure, forming
larger tungsten particles (20-60 μm), and the structure is
dispersed in the base alloy.
Application of Heavy Tungsten Alloy CollimatorHeavy tungsten disks are ideal for shielding x-rays and gamma rays.
Extremely high tungsten shielding (60% higher than lead). Heavy-duty tungsten alloy shields are mainly used in collimators,
FDG containers, multi-blade collimators, nuclear shields, beam
shields, vial shields, pet syringe shields, isotope containers and
other fields.
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