95WNiFe Pot Tungsten Heavy Alloy ASTM B777 For Nuclear Shields
95WNiFe High Performance Machined Heavy Tungsten Alloy Pot
Heavy Tungsten Alloy Pot are ideal materials for shielding x-rays and gamma rays. Very high density tungsten shield (60% denser than lead).
Heavy tungsten alloy shields are mainly used in collimators, FDG containers, multi-leaf collimators, nuclear shields, beam shields, vial shields, PET syringe shields, isotope containers, and other fields.
Heavy tungsten alloy pot 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. The density of high specific gravity tungsten alloy is up to 15.20 ~ 18.70g/cm3, also known as high specific gravity tungsten alloy or high density alloy material. Because tungsten alloys weigh more than twice as much as steel.
Heavy Tungsten Alloy Pot SPECIFICATIONS
| 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 Pot Picture:
Introduction and Feature of Heavy Tungsten Alloy Pot
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Tungsten 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 the general lead proportion, high thermal conductivity: 5 times of die steel; Low coefficient of thermal expansion: only 1/2-1/3 capacity of steel, good electrical conductivity, good resistance to welding and cutting.
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The common method for preparing heavy tungsten alloys is to mix the desired amount of tungsten, iron, nickel or copper powder and then cold press 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, forming a microstructure through which large tungsten particles (20-60μm) disperse in the matrix alloy.
Application of Heavy Tungsten Alloy Pot
- Tungsten alloy is an excellent shielding material because of its high density and excellent ray absorption ability. For example, the collimator, the wing guard and penumbra block are all made of high specific gravity tungsten alloy. The shielding parts of medical electronic linear tape feeder are also made of high specific gravity tungsten alloy.
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