JINXING MATECH CO LTD
JINXING MATECH is an expert provider on the metal solution. Especially on the products such as Tungsten Alloy , Tungsten copper , Titanium , Zirconium, Vanadium, Hafnium, Sputtering target , Nobel
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Heavy 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.
| 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 |
Tungsten 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.
Heavy 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.