Brass L70

  • Brass LO70-1
  • Brass LMZA57-3-1
  • Brass LMzAJKS70-7-5-2-2-1
  • Brass LMZh57-1,5-0,75
  • Brass LMtsKA58-2-1-1
  • Brass LMtsKNS58-3-1,5-1,5-1
  • Brass LMtsKNSA58-3-1,5-1,5-1
  • Brass LMtsSKa58-2-2-1-1
  • Brass LMsh68-0,05
  • Brass LN65-5
  • Brass LNKMts49-10-0,3-0,2
  • Brass LNKoMts49-9-0,2-0,2
  • Brass ЛНМц60-9-5
  • Brass LO60-1
  • Brass LO62-1
  • Brass LKS65-1,5-3
  • Brass LO90-1
  • Brass LOK59-1-0.3
  • Brass LOMNA49-0,5-10-0,4-0,4
  • Brass Lomsh70-1-0.04
  • Brass Lomsh70-1-0.05
  • Brass LS58-2
  • Brass LS58-3
  • Brass LS59-1
  • Brass LS59-1B
  • Brass LS59-2
  • Brass LS60-1
  • Brass LS63-3
  • Brass LS64-2
  • Brass LS74-3
  • Brass LA85-0.5
  • Brass L59
  • Brass L60
  • Brass L63
  • Brass L66
  • Brass L68
  • Brass L70
  • Brass L72
  • Brass L75mk
  • Brass L80
  • Brass L85
  • Brass L90
  • Brass L96
  • Brass LA77-2
  • Brass LA77-2u
  • Brass LMZ58-2
  • Brass LAJ60-1-1 (LAJ60-1-1L)
  • Brass LAZHMTS52-2-1-1,5-1
  • Brass LAMsh77-2-0,04
  • Brass LAMSh77-2-0,05
  • Brass LAN59-3-2
  • Brass LANKMZ 75-2-2,5-0,5-0,5 (alloy 156)
  • Brass LAF94-0,5-0,15
  • Brass LZMc59-1-1
  • Brass LZhS58-1-1
  • Brass LC62-0.5
  • Brass LK75B
  • Brass LCAN80-1-1,9-5,8
  • Brass ЛКАНМЦ75-2-2,5-0,5-0,5
  • Brass LCBO62-0,2-0,04-0,5

    • Designation

    Name The value
    Designation GOST Cyrillic Л70
    Designation GOST Latin L70
    Transliteration L70
    By chemical elements Л70

    Description

    Brass L70 is used: for the manufacture of semi-finished products (strips, sheets, bands, pipes); radiator strips; heat exchangers; parts obtained by a deep hood; drawn and cold-rolled pipes used in heat exchangers.

    Note

    Simple (double) brass.
    Brass L70 very well deformed in a cold condition; suitable for soldering, for use on steel.

    Standards

    Name Code Standards
    Tape В54 GOST 15527-2004, GOST 2208-2007, TU 48-21-5036-83, TU 48-21-656-85
    Tubes of non-ferrous metals and alloys В64 GOST 21646-2003
    Non-ferrous metals, including rare, and their alloys В51 GOST 28873-90
    Sheets and strips В53 TU 48-21-5031-91

    Chemical composition

    Standard Fe Cu Zn Sb Pb Bi
    GOST 2208-2007 ≤0.07 69-71 Rest ≤0.002 ≤0.05 ≤0.002
    Cu is the basis.
    According to GOST 15527-2004, GOST 2208-2007 the amount of other elements should be ≤ 0,20%. In brass, the mass fraction of nickel is allowed up to 0.30% due to the mass fraction of copper, which is not taken into account in the sum of other impurities. For antimagnetic brass, the mass fraction of iron should not exceed 0.030%. In brass, used for the production of condenser tubes and heat exchangers, the mass fraction of arsenic is allowed up to 0.060% due to the mass fraction of copper, which is not taken into account in the sum of other impurities.

    Mechanical properties

    σU, MPa d10 HB, MPa HV, MPa
    Strips and sheets cold rolled steel in the delivery state according to GOST 2208-2007 (samples)
    270-360 ≥40 ≥70 ≥75
    340-460 ≥20 ≥100 ≥115
    ≥430 ≥10 ≥125 ≥140
    Tubes round, drawn and cold-rolled steel in the delivery state according to GOST 21646-2003 (samples)
    ≥340 ≥35 - -

    Description mechanical marks

    Name Description
    σU Limit short-term strength
    d10 Elongation after rupture
    HB Brinell hardness number
    HV The Vickers hardness

    Physical characteristics

    Temperature Е, HPa r, kg/m3 l, W/(m · °C) R, Mr. · m
    20 115 8610 1214 69

    A description of the physical symbols

    Name Description
    l Coefficient of thermal conductivity