Steel St4ps (ВСт4пс)

  • Steel St3kp (VSt3kp)
  • Steel St6sp (VSt6sp)
  • Steel St6ps (VSt6ps)
  • Steel St5sp
  • St5ps steel
  • St5Gps steel
  • Steel St4sp (VSt4sp)
  • Steel St4ps (VSt4ps)
  • Steel St4kp (VSt4kp)
  • Steel St3sp (VSt3sp)
  • Steel St3ps (VSt3ps)
  • Steel St3GSp (VSt3GSp)
  • Steel St3Gps (VSt3Gps)
  • Steel St2sp (VSt2sp)
  • Steel St2ps (VSt2ps)
  • Steel St2kp (VSt2kp)
  • Steel St1sp
  • St1ps steel
  • Steel St1kp
  • Steel St0

    • Designation

    Name The value
    Designation GOST Cyrillic Ст4пс
    Designation GOST Latin Ct4pc
    Transliteration St4ps
    By chemical elements 4
    Name The value
    Designation GOST Cyrillic ВСт4пс
    Designation GOST Latin BCt4pc
    Transliteration VSt4ps
    By chemical elements 4

    Description

    Steel St4ps is used: for the production of corner rolled steel, h-beam, channels, used in steel structures and construction; welded, riveted and bolted structures high strength; light duty parts such as shafts, axles, bushings; welded pipes; two-headed rails, t-type P5, is designed for ground and suspended tracks; crutches accuracy class, designed for fastening of rails to wooden sleepers and bars.

    Note

    The degree of deoxidation — PS.

    Standards

    Name Code Standards
    Steel pipes and fittings to them В62 GOST 3262-75, GOST 8639-82, GOST 8642-68, GOST 8644-68, GOST 8645-68, GOST 8646-68, GOST 10704-91, GOST 10705-80, GOST 10707-80, GOST 13663-86, GOST 13664-68, TU 14-3-1160-83, TU 14-3-1428-86, TU 1373-013-02949352-2003
    Rails. Lining. Lining. Crutches В42 GOST 3280-84, GOST 5812-82, GOST 7056-77, GOST 8142-89, GOST 8194-75, GOST 12135-75, GOST 16277-93, GOST 22343-90
    Tape В24 GOST 3560-73, GOST 6009-74, STP М309-74
    Classification, nomenclature and General rules В20 GOST 380-2005
    Bars and shapes В22 GOST 5422-73, GOST 5781-82, GOST 8239-89, GOST 8240-97, GOST 8278-83, GOST 8281-80, GOST 8282-83, GOST 8283-93, GOST 8509-93, GOST 8510-86, GOST 9234-74, GOST 11474-76, GOST 19240-73, GOST 19425-74, GOST 535-2005, GOST 2590-2006, GOST 2591-2006, GOST 2879-2006, OST 5.9086-85, OST 5.9087-84, TU 14-2-341-78
    Sheets and strips В23 GOST 82-70, GOST 14637-89, GOST 14918-80, GOST 16523-97, GOST 16523-89, GOST 16523-70, GOST 103-2006
    Blanks. Of the workpiece. Slabs В31 OST 3-1686-90, TU 14-1-4944-90
    Sheets and strips В33 TU 14-1-3579-83, TU 14-1-4431-88
    Bars and shapes В32 TU 14-2-849-89, TU 14-11-245-88, TU 14-136-367-2008

    Chemical composition

    Standard C S P Mn Cr Si Ni Fe Cu N As
    GOST 380-2005 0.18-0.27 ≤0.05 ≤0.04 0.4-0.7 ≤0.3 0.05-0.15 ≤0.3 Rest ≤0.3 ≤0.012 ≤0.08
    Fe is the basis.
    The nitrogen content is indicated for steel smelted in electric furnaces. In open-hearth and converter steels, the content of N≤0.010%.

    Mechanical properties

    Section, mm sT|s0,2, MPa σU, MPa d5, % d4 y, % KCU, kJ/m2
    Longitudinal electric-welded pipes (Dy=10-530 mm) in the delivery condition. Listed marsvolta base metal
    - ≥245 ≥412 ≥21 - - -
    Pipe electric-welded profile in the delivery state according to GOST 13663-86 (samples)
    - - ≥372 ≥10 - - -
    - ≥245 ≥412 ≥21 - - -
    Long products
    - ≥240 ≥390 ≥33 - ≥70 -
    - ≥215 ≥370 ≥22 - - -
    - ≥145 - - - - -
    - ≥125 ≥350 ≥32 - ≥71 -
    - ≥110 ≥205 ≥30 - ≥75 -
    - ≥59 ≥135 ≥43 - ≥86 -
    The hot rolled plate, long products and fittings as supplied
    ≤20 ≥265 410-530 ≥24 - - ≥880
    20-40 ≥255 410-530 ≥23 - - ≥690
    40-100 ≥245 410-530 ≥21 - - -
    100 ≥235 410-530 ≥21 - - -
    Hot-rolled sheet in the delivery condition. Group strength ОК400В
    ≤2 - 400-680 - ≥17 - -
    2-3.9 - 400-680 - ≥19 - -
    Cold-rolled sheet in the delivery condition. Group strength ОК400В
    ≤2 - 400-680 - ≥19 - -
    2-3.9 - 400-680 - ≥21 - -
    Shapes. Without heat treatment - as supplied
    - 240-270 420-540 ≥23 - - -

    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
    d4 Elongation after rupture
    y The relative narrowing
    KCU Toughness

    Physical characteristics

    Temperature Е, HPa
    20 196

    A description of the physical symbols

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

    Technological properties

    Name The value
    Weldability Welded is limited.
    Склонность к отпускной хрупкости tend not
    The temperature of forging Start - 1280 °C, the end - of 800 °C.
    Flock-sensitive sensitivity not sensitive
    Machinability Under HB 152 Kn TV.SPL.=1.7 Kn b.St.=1.7