FIELD: metallurgy.
SUBSTANCE: work piece is preliminary deformed at temperature 1000-850°C with summary reduction 65-75 % and is subjected to finish deformation at temperature 750-700°C with reduction per pass not less, than 12 % and summary reduction not less, than 60 %. Further, there is performed quenching from rolled heating at rate over 35°C/min to 150±10°C and successively cooling in air. Upon quenching sheet is subjected to high tempering at temperature 600±10°C with conditioning 4.0-6.0 min/mm of thickness, where upon there is carried out stabilising tempering at temperature 460+10°C with conditioning for 3-5 hours and successive cooling in air.
EFFECT: increased strength and cold resistance of low carbon ferrite-pearlite steel.
1 ex, 2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| PROCEDURE FOR HEAT TREATMENT OF FLATS OUT OF LOW CARBON FERRITE-PEARLITE STEEL | 2009 |
|
RU2414517C1 |
| PROCEDURE FOR PRODUCTION OF SHEETS OUT OF COLD RESISTANT STEEL | 2009 |
|
RU2394108C1 |
| THERMAL TREATMENT METHOD OF SEMI-FINISHED PRODUCTS FROM HYPOPEARLITIC STEELS | 2008 |
|
RU2373292C1 |
| HEAT TREATMENT METHOD OF WELDED JOINTS OF LOW CARBON FERRITE-PEARLITE STEELS | 2005 |
|
RU2299252C1 |
| THERMAL TREATMENT OF WELDS OF LOW-CARBON FERRITE-PERLITE STEELS | 2014 |
|
RU2566241C1 |
| ROLLED STOCK MANUFACTURING METHOD | 2012 |
|
RU2479637C1 |
| METHOD OF PRODUCTION OF LOW ALLOYED COLD-RESISTANT WELDED ROLLED PLATES WITH INCREASED CORROSION RESISTANT | 2014 |
|
RU2569619C1 |
| METHOD FOR PRODUCING HIGH-STRENGTH THICK-STEEL STEEL ROLLING ON A REVERSING MILL | 2020 |
|
RU2745831C1 |
| RECONDITIONING OF ARTICLES FROM LOW-CARBON PERLITE STEEL AFTER OPERATION | 2013 |
|
RU2559598C2 |
| METHOD OF PRODUCING COLD-RESISTANT SHEET | 2004 |
|
RU2265067C1 |
