FIELD: metallurgy.
SUBSTANCE: platinum alloy for catalyser grids contains, wt %: palladium 15.5-16.5; rhodium 2.7-3.3; tantalum 0.005-3.3; platinum - the rest.
EFFECT: shaping of homogeneous fine-grain structure at fabrication of casted blocks and semi-products, that allows to stabilise mechanical characteristics and to ensure long service life of catalytic packages, fabricated from the alloy, with keeping of high catalytic activity.
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