Features of Tungsten Alloy(a)

Heavy alloy (tungsten) is a kind of material as the substrate of tungsten (W content of 85-99%), and added Ni, Cu, Co, Mo, Cr and other elements of the alloy.

Tungsten alloy composition characteristics uses are classfied into W-Ni-Fe, W-Ni-Cu, W-Co, W-WC-Cu, W-Ag and other major series, having a density of up to 16 .5-19.0g / cm3, and is the world known heavy alloy, it has a range of excellent features, heavy: General accounting for high 16.5-18.75g / cm3 ,, strength: tensile strength 700-1000Mpa, strong ability to absorb radiation: its capacity than Lead 30-40%, thermal conductivity coefficient: 5 times mold steel; thermal expansion coefficient is small: only iron or 1 / 2-1 / 3, good conductive properties of steel; has good weldability and formability . Given the high proportion of these alloys have excellent features, it is widely used in the aerospace, aviation, military, oil drilling, electrical instrumentation, medical and other industries.

Medical tungsten alloy ray mask material: tungsten alloy (heavy alloy) multi-leaf collimators (MLC), the thickness of 2.0-3.8mm, flatness board 0.05mm; tungsten alloy (heavy alloy; tungsten collimator ) protective tank - radioactive for medical mask on the wall; tungsten needle masks - masks for medical radioactive liquid; tungsten alloy memory - used to store radioactive material cans, boxes and other containers; quasi collimator - for medical linear accelerator and cyclotron; tungsten alloy container - for 60Co radiation therapy machine mask; γ camera tungsten collimator.




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