Bronze БрО8С21 (БрОС8-21)

  • Bronze БрО3Ц8С4Н1 (БрОЦСН3-8-4-1)
  • Bronze БрО8Ц4 (БрОЦ8-4)
  • Bronze БрО8С21 (БрОС8-21)
  • Bronze БрО8С12 (БрОС8-12)
  • Bronze БрО8Н4Ц2 (БрОНЦ8,5-4-2)
  • Bronze БрО6Ц6С3 (БрОЦС6-6-3)
  • Bronze БрО6Ц6С2х (БрОЦС6-6-2х)
  • Bronze БрО6Ц4С2Н1 (БрОЦСН6-4-2-1)
  • Bronze БрО6С6Ц3
  • Bronze БрО6К2Ц1
  • Bronze БрО5Ц6С5 (БрОЦС5-6-5)
  • Bronze БрО5Ц5С5 (БрОЦС5-5-5)
  • Bronze БрО5С25 (БрОС5-25)
  • Bronze БрО4Ц8С5
  • Bronze БрО4Ц7С5 (БрОЦС3,5-7-5)
  • Bronze БрО4Ц4С17 (БрОЦС4-4-17)
  • Bronze БрО3Ц7С5Н1 (БрОЦСН3-7-5-1)
  • Bronze БрО3Ц6С5 (БрОЦС3-6-5)
  • Bronze БрО3Ц13С4 (БрОЦС3-13-4)
  • Bronze БрО3Ц12С5 (БрОЦС3-12-5)
  • Bronze БрО3,5Ц7С5
  • Bronze BrO19
  • Bronze БрО16С5 (БрОС16-5)
  • Bronze БрО10Ц2Н2 (БрОЦН10-2-2)
  • Bronze БрО10Ц2Н1,5 (БрОЦН10-2-1,5)
  • Bronze БрО10Ц2 (БрОЦ10-2)
  • Bronze БрО10Ф1 (БрОФ10-1)
  • Bronze БрО10Ф0,7Н0,5 (БрОФН10-0,7-0,5)
  • Bronze БрО10С2Н3 (БрОСН10-2-3)
  • Bronze БрО10С10 (БрОС10-10)

    • Designation

    Name The value
    Designation GOST Cyrillic БрО8С21
    Designation GOST Latin BpO8C21
    Transliteration BrO8S21
    By chemical elements BaSn8Pb21
    Name The value
    Designation GOST Cyrillic БрОС8-21
    Designation GOST Latin BpOC8-21
    Transliteration BrOS8-21
    By chemical elements BaSnPb8-21

    Description

    Bronze БрО8С21 used: for the manufacture of castings for critical bearings, operating at high pressure; castings parts metallurgical machinery (large bearings heavy mill, crushers and other parts subject to friction at high pressures and speeds); conical and cylindrical bushings in export performance.

    Note

    Vysokohromistyh bronze. The coefficient of friction of bronze without lubrication of 0.10, with a lubricant is 0.005. The maximum allowable speed — 10 m/s.

    Standards

    Name Code Standards
    Non-ferrous metals, including rare, and their alloys В51 STP М314-95

    Chemical composition

    Standard P Si Ni Fe Cu As Al Zn Sn Sb Pb Bi Mg
    STP М314-95 ≤0.05 ≤0.02 ≤2 ≤0.2 Rest ≤0.01 ≤0.02 ≤2 7-9 ≤0.5 19-23 ≤0.005 ≤0.02
    Cu is the basis.
    By STP M314-95, the total content of impurities should be ≤ 0.75%. The content of zinc and nickel is allowed due to the copper content.

    Mechanical properties

    σU, MPa d5, % KCU, kJ/m2
    Castings are supplied without heat treatment
    ≥147 ≥5 ≥40

    Description mechanical marks

    Name Description
    σU Limit short-term strength
    d5 Elongation after rupture
    KCU Toughness

    Physical characteristics

    Temperature r, kg/m3
    20 9300

    A description of the physical symbols

    Name Description
    l Coefficient of thermal conductivity
    R UD. the resistivity