FIELD: process engineering.
SUBSTANCE: identical physical properties corresponding to strength class X70 result from hot rolling microalloyed 24-27 mm-thick pipe steel at specified fining temperature. Note here that temperature of finishing beginning is selected in the range of 790-830°C, while temperature of rolling end is taken equal to 790-820°C. Besides, sheet cooling end temperature is taken equal to 540-580°C.
EFFECT: improved physical properties.
2 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCING SHEETS FROM LOW-ALLOY TUBE STEEL OF K60 STRENGTH CLASS | 2011 |
|
RU2475315C1 |
| MANUFACTURING METHOD OF PLATES FROM LOW-ALLOY PIPE STEEL WITH STRENGTH CLASS K60 | 2011 |
|
RU2465345C1 |
| METHOD OF PRODUCING LOW-ALLOY K52-K60-GRADE PIPE STEEL | 2011 |
|
RU2458751C1 |
| MANUFACTURING METHOD OF PLATES FROM LOW-ALLOY PIPE STEEL WITH STRENGTH CLASS K60 | 2012 |
|
RU2479638C1 |
| MANUFACTURING METHOD OF PLATES FROM LOW-ALLOY PIPE STEEL WITH STRENGTH CLASS K60 | 2012 |
|
RU2479639C1 |
| METHOD OF MAKING SHEETS FROM LOW-ALLOY PIPE STEEL | 2011 |
|
RU2458753C1 |
| MANUFACTURING METHOD OF PLATES FROM LOW-ALLOY PIPE STEEL WITH STRENGTH CLASS K56 | 2011 |
|
RU2465343C1 |
| METHOD OF PRODUCING SHEETS FROM LOW-ALLOYED TUBE STEEL OF X60 STRENGTH GRADE | 2011 |
|
RU2458156C1 |
| MANUFACTURING METHOD OF PLATES FROM LOW-ALLOY PIPE STEEL WITH STRENGTH CLASS K60 | 2011 |
|
RU2465344C1 |
| METHOD OF PRODUCING SHEET ROLLED PRODUCTS FROM LOW-ALLOY PIPE STEEL | 2017 |
|
RU2696186C2 |
