Tape, strip hafnium GPI-1
Hafnium, silvery metal, durable and heat-resistant, very plastic in its pure form, can be smoothed out into a thin sheet and foil, even up to a few microns thick. The finished sheet must be smooth and clean, without cracks and contamination. The samples are allowed irregularities, without departing from the size of the border provided GOST size deviations. There may be slight defects, risks and changes in the color specified standard. Fluctuations in color depends on the terms and conditions of storage of the material.
Dimensions of the sheets vary widely from 5 mm thick, 500−800 mm — width and approximately 500−2000 mm — length. With larger permissible deviation of up to 20 mm length. Sheets may have dimensional and random length that is a multiple and not multiple of 100. If necessary, hafnium doped with special additives to obtain required properties — tantalum, boron, cobalt, silicon, tungsten. This alloy sheet is used for the production of special heat-resistant components of missile technology, nuclear boilers.
Heat-resistant and durable sheets are required in the chemical industry, nuclear power engineering and mechanical engineering. The instrumentation and electrical tape of hafnium produce cathodes and anodes for electric vacuum devices. Heat resistance and low work function (3.53 eV — less than niobium, molybdenum and tungsten) make it possible to apply not only hafnium in electronic devices, but the cathode electron beam guns. High resistance of hafnium allows tape 5−20 micron range of heaters and thermocouple elements.
Buy at a bargain price
In stock company «Electrovek-steel» in the presence of a wide range of rentals of rare and refractory metals. Hafnium sheet supply at reasonable prices. Technical product documentation includes data on the chemical composition, limiting the percentage of impurities; mechanical properties of products; surface quality. Efforts of ultrasonic testing. Lead times are minimal. For wholesale customers provide preferential discounts.