Alloy MA15

  • Alloy MA1
  • Alloy MA11
  • Alloy MA12
  • Alloy MA14
  • Alloy MA15
  • Alloy MA19
  • Alloy MA2
  • Alloy MA2-1
  • Alloy MA2-1pch
  • Alloy MA20
  • Alloy MA5
  • Alloy MA8
  • Alloy MA8pch

    • Designation

    Name The value
    Designation GOST Cyrillic МА15
    Designation GOST Latin MA15
    Transliteration MA15
    By chemical elements CuAl15

    Description

    MA15 alloy used: for the manufacture of semi-finished products (sheets, plates, bars, rods, profiles, strips, tubes, wire, stampings and forgings) by hot deformation, as well as ingots and slabs intended for the production of parts of welded structures requiring high yield strength in compression and is operated with maximum working temperatures up to +150 °C — long, up to +200 °C — short-term.

    Note

    For ICS No. 5/1992 to GOST 22635−77 alloy brand MA15 removed from the standard.

    Standards

    Name Code Standards
    Non-ferrous metals, including rare, and their alloys В51 GOST 14957-76
    Bars В55 GOST 18351-73
    Sheets and strips В53 GOST 22635-77

    Chemical composition

    Standard Mn Si Ni Fe Cu Al Zn Zr La Be Cd
    GOST 14957-76 ≤0.1 ≤0.05 ≤0.005 ≤0.03 ≤0.03 ≤0.05 2.5-3.5 0.45-0.9 0.7-1.1 ≤0.002 1.2-2
    According to GOST 14957-76 the mass fraction of other impurities is ≤ 0.30%. "Other impurities" include impurities whose permissible content limits are not indicated (≤), as well as impurities not included in the table, the content of which is not determined. Beryllium is not determined, but is introduced by calculation.

    Mechanical properties

    Section, mm sT|s0,2, MPa σU, MPa d
    Sheet autogeny rental in the state of delivery according to GOST 22635-77 (samples transverse)
    0.8-2 ≥176 ≥255 ≥6
    2-3.5 ≥176 ≥255 ≥4
    3.5-10 ≥166 ≥245 ≥4
    Bars and rods, hot-pressed in the delivery condition without heat treatment according to GOST 18351-73 (longitudinal samples)
    100-160 ≥215 ≥285 ≥5
    160-200 - ≥275 ≥5
    50-100 ≥235 ≥295 ≥6
    8-50 ≥215 ≥275 ≥6

    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
    d Elongation after rupture

    Physical characteristics

    Temperature Е, HPa r, kg/m3 l, W/(m · °C) R, Mr. · m a, 10-6 1/°C С, J/(kg · °C)
    20 42 1830 113 65 - -
    100 - - - - 259 10048
    200 - - - - 268 -

    A description of the physical symbols

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