Steel 15H1M1F

  • Steel 12Х2МФСР
  • Steel 15Х1М1Ф
  • 18Kh3MF steel

    • Designation

    Name The value
    Designation GOST Cyrillic 15Х1М1Ф
    Designation GOST Latin 15X1M1F
    Transliteration 15H1M1F
    By chemical elements 15Cr1Mo1V

    Description

    15H1M1 °F steel is used: for the manufacture of tubes; tubes of superheaters, steam pipelines and collectors installations with high pressure, long operating at temperatures up to +585 °C; the equipment and pipelines of nuclear power plants (NPP); of billets intended for the manufacture of seamless cold, warm, hot-wrought, including hot-pressed and hot-pressed reduced pipes for steam boilers and pipelines, installations with high and supercritical steam parameters; fabrication by hot forging, welded pipe, fittings piping and stamp-welded fittings.

    Standards

    Name Code Standards
    Processing of metals by pressure. Forgings В03 OST 108.030.113-87, TU 108.1267-84, TU 0306.018-80, ST ЦКБА 010-2004
    Steel castings В82 TU 108-806-78
    Blanks. Of the workpiece. Slabs В31 TU 108-938-80, TU 14-1-4992-91
    Sheets and strips В33 TU 108.11.888-87
    Bars and shapes В32 TU 14-1-1529-2003
    Steel pipes and fittings to them В62 TU 3-923-75, TU 14-3-420-75, TU 14-3-463-2005, TU 14-3-460-2009, TU 1301-039-00212179-2010, TU 1310-030-00212179-2007, TU 108-874-2012, TU 14-3Р-55-2001, TU 14-3-460-2003

    Chemical composition

    Standard C S P Mn Cr Si Ni Fe Cu Al V Mo
    TU 108.11.888-87 0.1-0.16 ≤0.025 ≤0.025 0.6-0.95 1.1-1.4 0.17-0.37 ≤0.3 Rest ≤0.3 - 0.2-0.35 0.9-1.1
    TU 1301-039-00212179-2010 0.12-0.16 ≤0.025 ≤0.025 0.6-0.9 1.1-1.4 0.17-0.37 ≤0.4 Rest ≤0.25 - 0.2-0.25 0.9-1.1
    TU 14-3Р-55-2001 0.1-0.15 ≤0.025 ≤0.025 0.4-0.7 1.1-1.4 0.17-0.37 ≤0.25 Rest ≤0.25 - 0.2-0.35 0.9-1.1
    TU 108-874-2012 0.11-0.15 ≤0.025 ≤0.025 0.4-0.7 1.1-1.4 0.17-0.37 ≤0.3 Rest ≤0.3 ≤0.01 0.2-0.35 0.9-1.1
    TU 108.1267-84 0.1-0.16 ≤0.025 ≤0.025 0.4-0.7 1.1-1.4 0.17-0.37 ≤0.25 Rest ≤0.25 - 0.2-0.25 0.9-1.1
    Fe is the basis.
    According to TU 14-3R-55-2001, TU 14-1-1529-2003 and TU 14-3-460-2003 for steel made by scrap-process or from cuprous ores, the mass fraction of residual copper and nickel is allowed up to 0.30 % of each. A technological addition of rare earth elements is allowed to improve the quality of the metal. For steel smelted in electric furnaces, the mass fraction of carbon should be 0.11-0.16%, manganese 0.60-0.90%.
    According to TU 1301-039-00212179-2010 the chemical composition is given for steel grade 15H1M1F-III. The content of each impurity element, not regulated by the table, is allowed up to 0.050%.
    According to TU 108-874-2012 the chemical composition is given for steel grade 15H1M1F. The presence of rare-earth elements in steel is not a defective feature. The content of manganese in steel is allowed up to 0.90%. Permissible deviations in chemical composition: by carbon + 0,020 / -0,010%, by silicon ± 0,030%, by manganese -0,020%, by chromium ± 0,10%, by molybdenum + 0,050 / -0,020%, by vanadium ± 0,020%.
    According to TU 108.11.888-87 the chemical composition is given for steel grade 15H1M1F. The technological additive REM is allowed up to 0.20% by calculation. The content of manganese in steel is allowed up to 0.90%. Permissible deviations in chemical composition: carbon ± 0.010%, silicon ± 0.030%, manganese -0.020%, chromium ± 0.10%, molybdenum ± 0.050%, vanadium ± 0.020%, nickel ± 0.050%. After processing the steel on OSRV, the total content of sulfur and phosphorus in the steel should not be more than 0.030%.

    Mechanical properties

    Section, mm sT|s0,2, MPa σU, MPa d5, % d y, % KCU, kJ/m2
    The leaves on the other 108.11.888-87. Normalization at 970-1000 °C + Vacation at 720-760 °C (exposure time according to the method of manufacturer), air cooling
    ≥295 490-685 ≥15 - ≥45 ≥390
    Seamless pipes for steam boilers and pipelines according to TU 14-3P-55-2001. Normalization at 970-1000 °C + Vacation at 730-760 (excerpt of not less than 10 hours), air cooling
    ≥235 - - - - -
    Pipe. Without heat treatment in the state of delivery
    - ≥320 ≥500 16-18 - 45-50 392-490
    Tubular billet + hot deformed Tubes (DH=57-465 mm) TU 14-3-460-2003. Normalization at 970-1000 °C, air cooling + Vacation at 730-760 °C (aged for at least 10 hours), furnace cooling to 500 °C further cooling in air
    20-25 ≥345 490-690 ≥16 - ≥45 ≥390
    The leaves on the other 108.11.888-87. Normalization at 970-1000 °C + Vacation at 720-760 °C (exposure time according to the method of manufacturer), air cooling
    ≥165 ≥265 ≥20 - ≥60 -
    Seamless pipes for steam boilers and pipelines according to TU 14-3P-55-2001. Normalization at 970-1000 °C + Vacation at 730-760 (excerpt of not less than 10 hours), air cooling
    ≥225 - - - - -
    Tubular billet + hot deformed Tubes (DH=57-465 mm) TU 14-3-460-2003. Normalization at 970-1000 °C, air cooling + Vacation at 730-760 °C (aged for at least 10 hours), furnace cooling to 500 °C further cooling in air
    20-25 ≥345 490-690 ≥18 - ≥50 ≥490
    Seamless pipes for steam boilers and pipelines according to TU 14-3P-55-2001, TU 3-923-75. Normalization at 970-1000 °C + Vacation at 730-760 °C (aged for at least 10 hours), air cooling
    - ≥314 490-686 ≥16 - ≥45 ≥390
    - ≥314 490-686 ≥18 - ≥50 ≥490
    Seamless tubes of steel 15H1M1F-ø in delivery condition on the other 1301-039-00212179-2010. Normalization at 970-1000 °C + Vacation at 730-760 °C (aged for at least 8 hours), air cooling (which is allowed with the normalization of the accelerated cooling; for pipes with wall thickness up to 15 mm exposure when leave of at least 5 hours)
    - ≥315 490-655 ≥18 - ≥50 ≥590
    Pipe tsentrobezhnolityh, heat-treated on the other 108-874-2012
    - ≥294 490-657 - ≥16 ≥45 ≥390

    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
    d Elongation after rupture
    y The relative narrowing
    KCU Toughness

    Technological properties

    Name The value
    Macrostructure and pollution In the macrostructure of the pipe on the other 108-874-2012 should not be cracked, placenow and bundles. Allowed separate slag and sand inclusions, and a gas sink maximum linear size up to 1 mm. increased Local travelmasti metal 1-5 points scale rejection of the sign is not. Contamination of the metal pipes, non-metallic inclusions should not exceed the arithmetic mean score of the sulphides 2.5 points, according to the oxides - 3.5 points, silicates - 4 points scale.
    Microstructure On the other 108-874-2012 the size of ferritic grains should be no larger than 7 points according to GOST 5639. Under the control of the microstructure of tubes of rejection shall be subjected to pipe V points. Allowed in the metal pipe structure IV (b) points, provided positive results of impact tests of specimens cut from the inner layers of the cross section of the pipe wall.
    Particularities of production of goods Pipe tsentrobezhnolityh on the other 108-874-2012 are delivered in heat treated condition. Tubes are homogenized and anti-flake annealing, the modes of which shall be agreed with TSNIITMASH. The mode of heat treatment: Normalization at 970-1000 °C to + Leave in 715-754 °With a shutter speed of at least 5 hours, air cooling. Allowed temperature rise of normalization pipes up to 1050 °C, and accelerated cooling after normalizing.