Bronze Bra7

  • Bronze БрХ0,6Цр0,05 (БрХЦр0,6-0,05)
  • Bronze BrN10,5A0,5 (BrNA10,5-0,5)
  • Bronze БрН2,5Х0,7К0,6 (БрНХК2,5-0,7-0,6)
  • Bronze БрН5Мц2Т0,1 (БрНМцТ5-2-0,1)
  • BrNTsr bronze
  • Bronze BrSr0,1
  • Bronze БрТ5Х0,5 (БрТХ5-0,5)
  • Bronze БрХ0,2Нб0,1 (Alloy 204А; БрХНб0,2-0,1)
  • Bronze БрХ0,3Цр0,09 (БрХЦр0,3-0,09)
  • Bronze БрХ0,4Ко0,4Кр0,2Мг0,04 (Alloy №50)
  • Bronze БрХ0,4Нб0,25 (Alloy 204; БрХНб0,4-0,25)
  • Bronze БрХ0,5В0,2Цр0,2 (ХВЦр0,5-0,2-0,2)
  • Bronze БрХ0,6Т0,5 (БрХТ0,6-0,5)
  • Bronze BrMc5
  • BrCr0.7 bronze
  • Bronze БрХ0,8
  • Bronze BrX1
  • Bronze BrC1Cr
  • Bronze BrChNb
  • Bronze BrCNT
  • Bronze BrCrK
  • Bronze BrCrTV
  • Bronze BrCr0,2
  • Bronze BrCr0,3
  • Bronze BrCr0,4
  • Bronze BrCr0.7
  • Bronze БрА9Ж4Н4Мц1 (БрАЖНМц9-4-4-1)
  • Bronze BrB2
  • Bronze БрАЖ1,5 (БрАЖ10-1,5)
  • Bronze БрААЖ3Мц1,5 (БрАЖМц10-3-1,5)
  • Bronze БрААЖ10Ж4Н4 (БрАЖН10-4-4)
  • Bronze БрАА10Мц2 (БрАМц10-2)
  • Bronze BrA5
  • Bronze БрА6Мг1 (БрАМг6-1)
  • Bronze BrA7
  • Bronze БрА8,5Ж4Н5Мц1,5 (БрАЖНМц8,5-4-5-1,5)
  • Bronze БрАА9Ж4 (БрАЖ9-4)
  • Bronze БрА9Мц2 (БрАМц9-2)
  • Bronze БрБ1,7НТ (БрБНТ1,7)
  • Bronze БрБ1,9НТ (БрБНТ1,9)
  • Bronze БрБ1,9НТМг (БрБНТ1,9Мг)
  • Bronze BrN1,5Kr0,5 (BrNKr1,5-0,5)
  • Bronze BrB2,5
  • Bronze БрК0,4Х0,6Кo1,6 (БрКХКo0,4-0,6-1,6)
  • Bronze BrK1H3 (BrKN1-3)
  • Bronze БрК3Мц1 (БрКМц3-1)
  • Bronze BrKd0,5X0,15 (BrKdX0,5-0,15)
  • Bronze BrKd1
  • BrKo3Mts10 (BrKoMts3-10) bronze
  • Bronze BrMg0.03Cr0.035 (BrMgCr0.03-0.035)
  • Bronze BrMg0,3
  • Bronze BrMg0,5
  • Bronze BrMg0,8
  • Bronze BrMc12A8Zh3N2 (BrMcAzHN12-8-3-2)

    • Designation

    Name The value
    Designation GOST Cyrillic БрА7
    Designation GOST Latin BpA7
    Transliteration BrA7
    By chemical elements BaAl7

    Description

    Bronze Bra7 used: for the manufacture of semi-finished tapes and bands; elements of chemical engineering; moving contact; springs from the tape.

    Note

    Bronze is corrosion resistant to sulfuric and acetic acids, heat resistant, abrasion resistant.
    Bronze brand Bra7 well deformed in a cold state.
    Analog bronze Bra7 at CMEA 377−76 is bronze CuAl8.

    Standards

    Name Code Standards
    Tape В54 GOST 1048-79, OST 4.021.079-92
    Non-ferrous metals, including rare, and their alloys В51 GOST 18175-78, GOST 28873-90, OST 4.021.009-92
    Sheets and strips В53 TU 48-21-181-82

    Chemical composition

    Standard P Mn Si Fe Cu Al Zn Sn Pb
    GOST 18175-78 ≤0.01 ≤0.5 ≤0.1 ≤0.5 Rest 6-8 ≤0.5 ≤0.1 ≤0.03
    Cu is the basis.
    According to GOST 18175-78, the total mass fraction of normalized impurities is ≤ 1.10%. As agreed by the manufacturer with the consumer, the content of impurities of arsenic and antimony can be normalized. The mass fraction of nickel is allowed up to 0.50% without taking it into account in the total amount of impurities.

    Mechanical properties

    Section, mm sT|s0,2, MPa σU, MPa d10 HV, MPa
    Cold-rolled steel strip 0.1-1.0 mm in the delivery state on the EAST 4.021.079-92. (T/o for "heat-Treated": the Annealing at 260-280 °C (aging of 0.5-1.0 h)
    0.5-1 470-720 570-770 ≥5 -
    0.5 510-755 589-785 ≥3 -
    0.5-1 ≥490 ≥590 ≥10 -
    0.5 ≥490 ≥590 ≥5 -
    Cold-rolled steel strip of 0.1-2.0 mm in the delivery state according to GOST 1048-79. (T/o for "heat-Treated": the Annealing at 260-280 °C (aging of 0.5-1.0 h)
    0.5-1.2 ≥720 ≥770 - ≥230
    0.5 ≥760 ≥780 - ≥230
    0.5-1.5 470-720 570-770 ≥5 180-240
    0.5 510-760 590-780 ≥3 180-240
    0.5-2 ≥490 ≥590 ≥10 -
    0.5 ≥490 ≥590 ≥5 -

    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
    d10 Elongation after rupture
    HV The Vickers hardness

    Physical characteristics

    Temperature Е, HPa r, kg/m3 l, W/(m · °C) R, Mr. · m
    20 120 7800 80 110

    A description of the physical symbols

    Name Description
    Е The normal elasticity modulus
    r Density
    l Coefficient of thermal conductivity