Steel U10

  • U16 steel (EI336)
  • U9A steel
  • U9 steel
  • U8GA steel
  • U8G steel
  • U8A steel
  • U8 steel
  • U7A steel
  • U7 steel
  • U12A steel
  • U12 steel
  • U11A steel (U11)
  • U10A steel
  • U10 steel
  • Steel AU10E (ASU10E)
  • A85 steel
  • Steel A75 (U7AB)

    • Designation

    Name The value
    Designation GOST Cyrillic У10
    Designation GOST Latin U10
    Transliteration U10
    By chemical elements 10

    Description

    Steel U10 is used: for the manufacture of needle wire; tools, working in conditions without heating of cutting edge; the tool for tree processing (manual transverse and carpentry saws, carpentry saws machinery, twist drills); parts dies of cold forming (exhaust, heading, trimming and blanking) of small size and without sharp transitions in cross section; calibers simple form and low accuracy classes; rollers, files, metal scrapers; cold-rolled heat-treated ribbon with a thickness of from 2.5 to 0.02 mm designed for making flat and wire springs and spring-loaded parts of complex configuration (valves, styli, reeds, slats dolnych knives, small constructional details, including hours, etc. (tape is produced according to GOST 2283, GOST 21996 and a number of special technical conditions).

    Standards

    Name Code Standards
    Sheets and strips В23 GOST 103-2006
    Bars and shapes В22 GOST 1133-71, GOST 2590-2006, GOST 2591-2006, GOST 2879-2006
    Bars and shapes В32 GOST 1435-99, GOST 5210-95, GOST 7417-75, GOST 8559-75, GOST 8560-78, GOST 14955-77, TU 14-11-245-88, TU 14-1-1271-75
    Sheets and strips В33 GOST 4405-75, TU 14-131-971-2001
    Steel wire medium and high carbon В72 GOST 5468-88, GOST 9389-75
    Blanks. Of the workpiece. Slabs В31 TU 14-1-3300-81

    Chemical composition

    Standard C S P Mn Cr Si Ni Fe Cu
    GOST 1435-99 0.95-1.09 ≤0.028 ≤0.03 0.17-0.33 ≤0.2 0.17-0.33 ≤0.25 Rest ≤0.25
    Fe is the basis.
    According to GOST 1435-99, the mass fraction of chromium, nickel and copper is indicated for 1 group of metal products. The mass fraction of sulfur in steel obtained by the electroslag remelting method should not exceed 0.013%. In the metal products of the third group, the mass fraction of Cr ≤ 0.20-0.40%, Ni ≤ 0.25%, Cu ≤0.25%. In metal products of the 1 st and 3 rd groups, made of steel obtained by scrap-process, the mass fractions of nickel, copper and chromium are increased by 0.05% of each element as compared to those in the table. In a metal designed for the manufacture of cold-rolled strip, an increase in the mass fraction of nickel, copper and chromium is not allowed.

    Mechanical properties

    Section, mm σU, MPa d5, % d4 y, %
    Annealed cold-rolled tape of the highest quality
    4 ≤750 - ≥10 -
    A sample with a diameter of 5 mm and a length of 25 mm deformed and annealed. The rate of deformation of 10 mm/min strain Rate 0,007 1/C
    - ≥105 ≥50 - ≥87
    Cold-rolled steel strip sagatovna (specified strength class)
    - 750-900 - - -
    A sample with a diameter of 5 mm and a length of 25 mm deformed and annealed. The rate of deformation of 10 mm/min strain Rate 0,007 1/C
    - ≥90 ≥52 - ≥100
    Cold-rolled steel strip sagatovna (specified strength class)
    - 900-1050 - - -
    A sample with a diameter of 5 mm and a length of 25 mm deformed and annealed. The rate of deformation of 10 mm/min strain Rate 0,007 1/C
    - ≥55 ≥59 - ≥100
    Cold-rolled steel strip sagatovna (specified strength class)
    - 1050-1200 - - -
    A sample with a diameter of 5 mm and a length of 25 mm deformed and annealed. The rate of deformation of 10 mm/min strain Rate 0,007 1/C
    - ≥29 ≥70 - ≥100
    - ≥18 ≥78 - ≥100
    - ≥16 ≥86 - ≥100

    Description mechanical marks

    Name Description
    σU Limit short-term strength
    d5 Elongation after rupture
    d4 Elongation after rupture
    y The relative narrowing

    Physical characteristics

    Temperature r, kg/m3 l, W/(m · °C) R, Mr. · m a, 10-6 1/°C
    0 7810 40 420 -
    20 7810 40 420 -
    100 - 44 - 115
    300 - 41 - 125
    600 - 38 - 139
    900 - 34 - 154
    200 - - - 119
    400 - - - 13
    500 - - - 134
    700 - - - 143
    800 - - - 139
    1000 - - - 154
    1200 - - - 133

    A description of the physical symbols

    Name Description
    Е The normal elasticity modulus
    l Coefficient of thermal conductivity
    R UD. the resistivity
    a The coefficient of linear expansion

    Technological properties

    Name The value
    Weldability does not apply to welded structures. Method of welding - CCC.
    Склонность к отпускной хрупкости tend not
    The temperature of forging Start - 1180 °C, the end - of 800 °C. the cooling of the workpiece cross-section up to 100 mm in the air, 101-300 mm in the pit.
    Flock-sensitive sensitivity not sensitive
    Machinability when HB 197 Kn TV.SPL.=1.1 Kn b.St.=1.0.
    Sanding behaviour good