In the electrical industry copper M1 brands use more often. It goes further testing on the electrical conductivity, then it is assigned a code M1E - Electrical.
Mark is classified in accordance with GOST 859-2001.
Also, these products need to select high-quality rolled copper grade M1:

  • Rods - GOST 1535-91;
  • Tapes - GOST 1173-93;
  • Wire and tires - GOST 434-78;
  • Sheets and bands - GOST 495-92.
    In most cases, electrical copper M1E used tocurrent conductors and busbars, busbar systems and switchgear.
    The chemical composition of the material. Brand 99.9% consists of copper, as well as admixtures include silver, iron, nickel, sulfur, lead, etc. The total oxygen content of impurities shall not exceed 0.01.%. According to GOST 434-78 Electrical copper M1E for the manufacture of electrical components available in two states:
  • Cold soft alloy;
  • Cold-hard alloy.
    Depending on the condition we obtain different mechanical material properties. Electrical copper M1E has the following mechanical characteristics. For a "soft" limit of copper short-term strength of 200-260MPa for "solid" - 290Mpa. The hardness of the material, respectively, will be "soft" copper - 55MPa, "solid" - 95MPA. Also worth noting is that the elongation at break for the "soft" copper was 42% for the "solid" - 6%.
    Electrical copper M1E used for the manufacture of tires and wire of copper wire rod and bars. At the wire surface and the tire is not allowed defects that exceed the size of the control deviation. Deviations in color caused by the oxidation of the metal material or the use of lubrication technology. Electrical copper M1E represented a large product range, which can meet the requirements of many different industries.

    Download Non-Ferrous Metals Catalogue in PDF