Steel 60ХН

  • Steel 45KhNM (45KhNMA)
  • 4X2NMF steel
  • Steel 55X
  • Steel 60Kh2SMF
  • Steel 60CrNiG
  • 60KhN steel
  • 75XM steel
  • Steel 75KhSMF
  • 7X2SMF steel
  • Steel 90KhMF
  • Steel 9Х2МФ (9Х2МФА)

    • Designation

    Name The value
    Designation GOST Cyrillic 60ХН
    Designation GOST Latin 60XH
    Transliteration 60HN
    By chemical elements 60CrН

    Description

    60ХН steel is used: for the production of forgings of various parts of General engineering; work rolls Blumenhof, rollable, billet, rail and structural steel and heavy section mills; work rolls of sheet mills for hot rolling of metals.

    Standards

    Name Code Standards
    Processing of metals by pressure. Forgings В03 TU 108-11-905-87, TU 108.11.917-87

    Chemical composition

    Standard C S P Mn Cr Si Ni Fe
    TU 108.11.917-87 0.55-0.65 ≤0.04 ≤0.04 0.5-0.8 0.6-0.9 0.17-0.37 1-1.5 Rest
    Fe is the basis.
    According to TU 108.11.917-87, after processing the steel, a limitation on the content of sulfur and phosphorus is introduced on the OSRV. The total content of sulfur and phosphorus after OSRV ≤ 0.050%.

    Mechanical properties

    Section, mm t отпуска, °C sT|s0,2, MPa σU, MPa d5, % y, % KCU, kJ/m2 HB, MPa
    A sample with diameter 10 mm, length 50 mm, deformed. The rate of deformation of 5 mm/min strain Rate of 0.002 1/s
    - - - ≥94 ≥40 ≥100 - -
    - - - ≥77 ≥40 ≥100 - -
    - - - ≥55 ≥40 ≥100 - -
    - - - ≥38 ≥40 ≥100 - -
    - - - ≥27 ≥38 ≥100 - -
    - - - ≥23 ≥39 ≥100 - -
    The barrels of the rolls of sheet mills for hot rolling. Hardening + Vacation
    500 - - - - - - 255-302
    Rolls. Normalization at 840 °C + Vacation at 650 °C (indicated as the place of clippings sample)
    600 - 390-540 710-950 16-21 28-51 150-590 207-248
    Forgings. Quenching 840-860 °C (exposure 4 h)
    - 460-500 1090-1210 1250-1350 12-14 33-36 280-400 363-388
    The barrels of the rolls of sheet mills for hot rolling. Normalization + Vacation
    1600 - - - - - - 229-285
    Rolls. Normalization at 840 °C + Vacation at 650 °C (indicated as the place of clippings sample)
    600 - 390-560 710-860 16-20 30-52 340-590 207-248
    Forgings. Quenching 840-860 °C (exposure 4 h)
    - 520-580 940-1090 1250-1350 12-15 36-39 430-730 321-352
    The barrels of the rolls of sheet mills for hot rolling. Normalization + Vacation
    1200 - - - - - - 229-285
    Rolls. Normalization at 840 °C + Vacation at 650 °C (indicated as the place of clippings sample)
    600 - ≥450 ≥840 ≥15 ≥23 ≥160 ≥241
    Forgings. Quenching 840-860 °C (exposure 4 h)
    - 600-640 750-920 960-1050 17-22 41-51 700-1070 288-311
    Barrel rolls for cogging and section rolling mills for hot rolling. Hardening + Vacation
    500 - - - - - - 255-302
    Forgings. Normalization at 860 °C + Vacation at 600 °C (named place of clippings sample)
    200 - ≥690 ≥1050 ≥15 ≥27 - ≥269
    Barrel rolls for cogging and section rolling mills for hot rolling. Normalization + Vacation
    1500 - - - - - - 229-285
    Forgings. Normalization at 860 °C + Vacation at 600 °C (named place of clippings sample)
    200 - 680-700 1030-1050 12-16 23-30 - 269-285
    Forgings. Normalization at 860 °C + Vacation at 600 °C
    200 - 690 1050 15 27 - -
    Forgings. Normalization at 860 °C + Vacation at 600 °C (named place of clippings sample)
    200 - 660-690 1040 13-15 32-36 - 255-285
    Mode, combining preliminary and final anti-flake heat treatment: loading at 600-650 °C, cooling with the furnace to 300-320 °C, exposure 2 h/100 mm, heating with the furnace to 950 °C, exposure time 0.5 h, cooling to 840-860 °C, exposure: 0.5/100 mm, air cooling to 400 °C, then oven to 200-250 °C, exposure 2 h/100 mm. Heating with the furnace to 710 °C, exposure for 0.5 h, then cooled to 590-601 °C, exposure at the initial stage of 1.5 h/100 mm, in the forging stage 6h/100mm, then cooled at 30 °C/h to 400 °C, then 15 °C/h to 150 °C (samples tangential, specify the location of the fillet sample)
    1000 - ≥420 ≥840 ≥10 ≥10 - ≥241
    500 - ≥460 ≥920 ≥6 ≥10 - ≥255
    800 - ≥445 ≥790 ≥8 ≥11 - ≥217
    1000 - ≥520 ≥880 ≥12 ≥23 - ≥255
    500 - ≥465 ≥810 ≥9 ≥23 - ≥241
    800 - ≥470 ≥830 ≥16 ≥19 - ≥229
    1000 - ≥450 ≥880 ≥14 ≥36 - ≥241
    500 - ≥470 ≥890 ≥11 ≥17 - ≥241
    800 - ≥510 ≥860 ≥14 ≥30 - ≥241
    1000 - ≥400 ≥760 ≥9 ≥12 - ≥217
    500 - ≥550 ≥920 ≥5 ≥6 - ≥255
    800 - ≥420 ≥780 ≥10 ≥15 - ≥207

    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
    HB Brinell hardness number

    Technological properties

    Name The value
    Weldability does not apply to welded structures.
    Склонность к отпускной хрупкости inclined
    The temperature of forging Start - 1200 °C, the end - of 800 °C. the cross Sections up to 250 mm are cooled in air, 251-350 mm - in the pit.
    Flock-sensitive sensitivity sensitive
    Machinability In the annealed condition with NV 170-207 and blower SB=610 MPa Kn TV.SPL.=0.85 Kn b.St.=0.80