Rhodium Rd99,8

  • Rhodium rd99.8
  • Rhodium rd99.9
  • Rhodium RdA-0
  • Rhodium rdA-1
  • Rhodium rdA-2

    • Designation

    Name The value
    Designation GOST Cyrillic Рд99,8
    Designation GOST Latin Pd99,8
    Transliteration Rd998
    By chemical elements -

    Description

    Rhodium Rd99,8 is used: for the manufacture of flat products, wire, technical products, crucibles used in instrumentation and other industries and research organizations; application of protective coatings (rhodium).

    Note

    Rhodium is not soluble in acid and boiling Aqua Regia.
    The pressure treatment is conducted at 1200 °C — 1400 °C.
    Rhodium coatings have good reflectivity, high hardness, heat (up to 430 °C) and chemical resistance.

    Standards

    Name Code Standards
    Non-ferrous metals, including rare, and their alloys В51 GOST 13098-2006
    Sheets and strips В53 GOST 24718-81

    Chemical composition

    Standard Si Fe Pb Ba Au Rh
    GOST 13098-2006 ≤0.03 ≤0.02 ≤0.01 ≤0.008 ≤0.01 ≥99.8
    Rh is the basis.
    According to GOST 13098-2006, the total content of platinum, palladium, iridium and ruthenium should be ≤ 0.150%. The sum of all impurities, as well as the admixtures of nickel, copper and aluminum, which are standardized and indicated in the table, should be ≤ 0.20%.

    Mechanical properties

    σU, MPa HB, MPa
    Wire, flat-rolled products in delivery condition
    589-981 110-140

    Description mechanical marks

    Name Description
    σU Limit short-term strength
    HB Brinell hardness number

    Physical characteristics

    Temperature r, kg/m3
    20 12450

    A description of the physical symbols

    Name Description
    l Coefficient of thermal conductivity