Steel St3gps (ВСт3Гпс)

  • 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 Ст3Гпс
    Designation GOST Latin Ct3Gpc
    Transliteration St3Gps
    By chemical elements 3Mn
    Name The value
    Designation GOST Cyrillic ВСт3Гпс
    Designation GOST Latin BCt3Gpc
    Transliteration VSt3Gps
    By chemical elements 3Mn

    Description

    Steel St3gps used: for the manufacture of load-bearing elements of welded structures operating at variable loads at temperatures from -20 °C to +425 °C; the two-headed rails, t-type P5, is designed for ground and suspended tracks.

    Note

    The degree of deoxidation — PS.

    Standards

    Name Code Standards
    Steel pipes and fittings to them В62 GOST 3262-75, GOST 20295-85, GOST 24950-81, TU 14-3-1160-83, TU 14-3-1428-86
    Tape В24 GOST 3560-73, 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
    Sheets and strips В23 GOST 82-70, GOST 14637-89, GOST 14918-80, GOST 103-2006, TU 14-1-3023-80
    Blanks. Of the workpiece. Slabs В31 OST 3-1686-90, TU 14-1-4944-90
    Welding and cutting metals. Soldering, riveting В05 OST 36-58-81
    Sheets and strips В33 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 0.14-0.22 ≤0.05 ≤0.04 0.8-1.1 ≤0.3 ≤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, % y, % KCU, kJ/m2
    The hot rolled plate, long products and fittings as supplied
    10-20 ≥245 370-490 ≥26 - ≥980
    20-40 ≥235 370-490 ≥25 - ≥980
    40-100 ≥225 370-490 ≥23 - -
    100 ≥205 370-490 ≥23 - -
    Steel hot-rolled sheet with a thickness of 12-50 mm
    - 225-390 410-570 26-39 58-68 -
    - 215-390 - - - -
    - 215-360 - - - -
    - 195-265 - - - -
    - 175-245 300-400 - 65-76 -
    Steel hot-rolled sheet with a thickness of 20 mm, strain aging at 350 °C (1000 h exposure)
    - ≥370 ≥510 ≥22 ≥78 -
    - ≥320 ≥470 ≥22 ≥63 -
    - ≥320 ≥510 ≥18 ≥58 -
    - ≥275 ≥440 ≥22 ≥65 -
    - ≥245 ≥340 ≥25 ≥78 -

    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
    y The relative narrowing
    KCU Toughness

    Technological properties

    Name The value
    Weldability Welded without restriction; welding methods: SMAW, ADS submerged arc and gas protection electroslag welding and CCC. For thickness of more than 36 mm recommended heating and subsequent heat treatment is mandatory.
    Склонность к отпускной хрупкости tend not
    The temperature of forging Start - 1250 °C, the end - of 800 °C.
    Flock-sensitive sensitivity not sensitive
    Machinability In the hot rolled condition when blower SB 124 and HB=400 MPa Kn TV.SPL.=1.8 Kn b.St.=1.6