What is high-density tungsten alloy radiation shielding?
High density tungsten alloy shielding is a type of tungsten alloy material made by mixing tungsten as the main raw material with a certain proportion of nickel iron or nickel copper powder, and then sintering at high temperature after thorough mixing. This material is used in the medical industry for shielding radiation (alloy radiation shielding, X-ray tungsten alloy shielding, gamma ray tungsten alloy shielding, radiation source tungsten alloy shielding)
High density tungsten alloy production execution standards: ASTM B777 or AMS 7725 or MIL-T-21014.
The material content of high-density tungsten alloy: tungsten nickel iron (90-97% WNIFE) or tungsten nickel copper (90-97% WNICU) or tungsten molybdenum nickel iron (90% WMO)
NIFE)
Density: 16.85-18.75g/cm3
Why use tungsten alloy as a shielding material?
According to the World Health Organization (WHO), ionizing radiation is an energy released by atoms that propagates in the form of electromagnetic waves (gamma or X-rays) or particles (neutrons, beta or alpha). The spontaneous decay of atoms is called radioactivity, and the excess energy released is a form of ionizing radiation
High density tungsten alloy shielding (WHA) has a high density, almost twice that of lead, and this high-density material can attenuate electromagnetic radiation of specific wavelengths. Tungsten alloy is an opaque material, therefore it is not affected by optical radiation, and this characteristic extends to the energy spectrum beyond the visible spectrum, such as ionizing radiation. In addition, tungsten alloy shielding is non-toxic and harmless to the human body, and has a wider range of applications in modern medical and detection systems.
What are the advantages of high-density tungsten alloy shielding?
The tungsten alloy shielding produced has excellent shielding performance. At the same time, they also have high mechanical strength, consistent heat and corrosion resistance, and high density.
In the field of medical technology, tungsten alloy products produced perform well in radiation therapy and diagnostic radiology. They are not only used to resist radiation, but also to ensure that radioactive materials accurately reach the desired location. Only in this way can we combat tumors and provide reliable support for the rehabilitation process.
In diagnostic radiology (PET), close range radiation therapy, and medical isotope production (such as molybdenum 99), our products ensure safe handling, storage, and radiation resistant transportation to the point of use. For transportation companies, medical professionals, and patients, reliability and safety are the top priorities.
In the field of security, we support the prevention of risks at airports, ports, and borders, providing protection for the entire society. In these fields, gamma and X-ray radiation are used to screen luggage, containers, freight trains, and motor vehicles. Due to the extensive use of radiation, it is crucial to safely shield against radiation and provide the best possible protection for passengers, staff, and other stakeholders.
Tungsten alloy shielding products also play an important role in the industrial field, providing reliable radiation protection for maintenance and repair work on nuclear reactors or pipelines supplying oil and natural gas.
Technical parameters
Tungsten heavy alloy |
WNiFe (ASTM B777, AMS-T-21014) |
WNiCu (ASTM B777, AMS-T-21014) |
| Designation |
90W |
93W |
95W |
97W |
90Cu |
93Cu |
95Cu |
| Density g/cm3) |
16.85~17.30 |
17.15~17.85 |
17.75~18.35 |
18.25~18.85 |
16.85~17.30 |
17.50~17.70 |
17.75~18.35 |
| Tensile Strength (MPa) |
758Min |
758Min |
724Min |
689Min |
648Min |
648Min |
684Min |
| Elongation (%) |
5Min |
5Min |
3Min |
2Min |
2Min |
2Min |
1Min |
| Hardness (HRC) |
32Max |
33Max |
34Max |
35Max |
32Max |
33Max |
34Max |
| Yield strength(MPa) |
517Min |
517Min |
517Min |
517Min |
517Min |
517Min |
634Min |
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