H13yu4 Fechral is iron-hromoallyuminievy alloy that is 70% of iron. On chrome aluminum accounts for 24% and 5.8%. Fechral H13yu4 is mainly used for domestic heating appliances and furnaces operating with operating temperatures up to 650 ° C.
The percentage of H13yu4 10 GOST 994−74.
Fechral — an alloy of iron, chromium and aluminum, which additionally doped with silicon and manganese. Depending on the proportion of components, each brand has its own designation. H13YU4 high electrical and different melting point, low density, which makes the alloy is 17% lighter than nichrome. Through the use of aluminum instead of nickel material cost is greatly reduced. alloy downside is that it is very fragile due to which hampered the production of thin wires and ribbons.
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