Copper M0b

  • Copper M1b
  • Copper M3r
  • Copper M3
  • Copper M2p
  • Copper M2k
  • Copper M2
  • Copper M1f
  • Copper M1u
  • Copper M1r
  • Copper M1k
  • Copper M1
  • Copper M0k
  • Copper M0b
  • Copper M00k
  • Copper M00b
  • Copper M00
  • Copper M0
  • Copper AMFu
  • Copper AMF

    • Designation

    Name The value
    Designation GOST Cyrillic М0б
    Designation GOST Latin M0b
    Transliteration M0b
    By chemical elements Cu0б

    Description

    Copper M0b is used: for the manufacture of drawn, cold-rolled and moulded tubes of circular cross section designed for use in electronics; drawn tubes of rectangular and square section, intended for the manufacture of the conductors of the windings of stators of electrical machines with liquid cooling; current conductors and alloys of high purity; instruments of vacuum industry; foil bimetal 999,9 MS+M0b+999,9 MS.

    Note

    Copper M0b is obtained by melting of cathodes in a reducing or inertance atmosphere or vacuum.

    Standards

    Name Code Standards
    Bars В55 GOST 10988-75, OST 4.021.018-92
    Tubes of non-ferrous metals and alloys В64 GOST 15040-77, GOST 16774-78, TU 48-21-366-74
    Sheets and strips В53 GOST 15471-77, TU 48-21-557-84
    Non-ferrous metals, including rare, and their alloys В51 GOST 193-79, GOST 859-2001, OST 4.021.009-92
    Bars and shapes В52 TU 48-21-498-75
    Tape В54 TU 48-21-854-88, TU 48-1-787-89

    Chemical composition

    Standard S P Ni Fe Cu As Zn Sn Sb Pb Bi O
    GOST 859-2001 ≤0.003 ≤0.002 ≤0.002 ≤0.004 Rest ≤0.002 ≤0.003 ≤0.002 ≤0.002 ≤0.003 ≤0.001 ≤0.001
    Cu is the basis.
    According to GOST 859-2001, the total mass fraction of copper and silver is ≥ 99.97%. Upon agreement of the manufacturer with the consumer, the manufacture of copper grade M0b with a mass fraction of oxygen not exceeding 0.0020% is allowed.
    In the strips and tapes manufactured in accordance with GOST 15471-77, the silicon content should not be more than 0.003%.

    Mechanical properties

    Section, mm sT|s0,2, MPa σU, MPa d5, % d10 HB, MPa
    Tape supplied on the other 48-21-854-88 (samples)
    0.2-3.53 - - ≥36 - -
    ≤2.5 - ≥310 - - -
    2.5-3.53 - ≥284 - - -
    Copper in the state of delivery
    90-150 200-250 ≥60 - ≤45
    300-450 400-490 ≥6 - -
    Drawn pipes of square and rectangular cross-section as supplied by GOST 16774-78
    - ≥200 - ≥35 -

    Description mechanical marks

    Name Description
    sT|s0,2 Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
    σU Limit short-term strength
    d5 Elongation after rupture
    d10 Elongation after rupture
    HB Brinell hardness number

    Physical characteristics

    Temperature Е, HPa r, kg/m3 l, W/(m · °C) R, Mr. · m С, J/(kg · °C)
    20 128 8940 387 1724 390

    A description of the physical symbols

    Name Description
    Е The normal elasticity modulus
    r Density
    l Coefficient of thermal conductivity
    R UD. the resistivity