FIELD: metallurgy.
SUBSTANCE: steel contains in wt %: carbon 0.14-0.20, manganese 1.3-1.5, silicon 0.05-0.45, phosphorus 0.02 maximum, sulphur from over 0.05 to 0.09, copper 0.25 maximum, vanadium 0.03-0.055, bismuth 0.005-0.02, nitrogen 0.004-0.015, molybdenum 0.05 maximum, and iron and impurities are the rest.
EFFECT: hot-rolled steel products have increased machinability by cutting upon keeping level of strength properties and impact toughness.
3 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| LOW-ALLOY STRUCTURAL STEEL WITH INCREASED STRENGTH | 2012 |
|
RU2505618C1 |
| METHOD OF PRODUCING FREE-CUTTING STEEL AM-14 | 2010 |
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| METHOD OF PRODUCTION OF THE CIRCULAR BAR MADE OUT OF THE MEDIUM ALLOY STEEL | 2004 |
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| ROLLED SHEET AND METHOD OF ITS PRODUCTION | 2018 |
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| METHOD FOR PRODUCTION OF ROLLED STEEL FOR THE MANUFACTURE OF FLEXIBLE PIPES FOR COILED TUBING (VARIANTS) | 2022 |
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RU2786281C1 |
| STRIP ROLLED PRODUCTS FROM BORON-CONTAINING MANGANESE STEEL | 2010 |
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| FREE-MACHINING BISMUTH-CONTAINING STEELS | 2012 |
|
RU2503737C1 |
| TUBE STOCK OUT OF LOW CARBON MANGANESE CONTAINING STEEL | 2006 |
|
RU2336329C1 |
| MEDIUM-CARBON SCREW STEEL | 2014 |
|
RU2544981C1 |
| METHOD OF PRODUCTION OF THE ROLLED SECTION STEEL IN THE FORM OF BARS MADE OUT OF THE MEDIUM-CARBON CHROMIUM-CONTAINING STEEL | 2004 |
|
RU2286395C2 |
