Alloy 77 SRM (SRM 770)

  • Alloy SrM 96 (SrM 960)
  • Alloy SSZP-2
  • Alloy SSZP-1
  • Alloy SSZM-2
  • Alloy SSZM-1
  • Alloy SrPl 96-4 (SrPl-4)
  • Alloy SrPl 88-12 (SrPl-12)
  • Alloy SrPdM 50-30 (SrPdM-30-20)
  • Alloy SrPd 80-20 (SrPd-20)
  • Alloy SrPd 70-30 (SrPd-30)
  • Alloy SrPd 60-40 (SrPd-40)
  • Alloy SrM 97 (SrM 970)
  • Alloy SrM 95 (SrM 950)
  • Alloy SrM 94 (SrM 940)
  • Alloy SrM 92.5 (SrM 925)
  • Alloy SrM 91.6 (SrM 916)
  • Alloy SrM 90 (SrM 900)
  • Alloy SrM 87.5 (SrM 875)
  • Alloy SrM 83 (SrM 830)
  • Alloy SrM 80 (SrM 800)
  • Alloy SrM 77 (SrM 770)
  • Alloy SrM 75 (SrM 750)
  • Alloy SrM 50 (SrM 500)

    • Designation

    Name The value
    Designation GOST Cyrillic СрМ 77
    Designation GOST Latin CpM 77
    Transliteration SrM 77
    By chemical elements AgCu 77
    Name The value
    Designation GOST Cyrillic СрМ 770
    Designation GOST Latin CpM 770
    Transliteration SrM 770
    By chemical elements AgCu 770

    Description

    SRM alloy 77 is used: for production of sliding contacts, electrical conductors and other technical products.

    Note

    Alloy silver-copper.

    Standards

    Name Code Standards
    Classification, nomenclature and General rules В50 GOST 6563-75
    Non-ferrous metals, including rare, and their alloys В51 GOST 6836-2002
    Sheets and strips В53 GOST 7221-80, GOST 24552-81

    Chemical composition

    Standard Fe Cu Sb Pb Bi Ag
    GOST 6836-2002 ≤0.13 12.5-13.5 ≤0.002 ≤0.005 ≤0.002 76.5-77.5
    Ag is the basis.
    According to GOST 6836-2002, the copper content is the rest (in the table the calculated content is indicated). The total content of impurities should be ≤ 0.140%.

    Physical characteristics

    Temperature r, kg/m3
    20 10100

    A description of the physical symbols

    Name Description
    r Density