FIELD: manufacture of oil-handling pipes and high-pressure vessels.
SUBSTANCE: proposed steel contains the following constituents, mass-%: carbon, 0.15-0.45; silicon, 0.15-0.45; manganese, 0.8-1.2; chromium, 0.8-1.2; nickel, 2.0-2.5; yttrium, 0.05-0.1; magnesium, 0.005-0.01; boron, 0.03-0.07; niobium, 1.0-1.5; nitrogen, 0.2-0.2; molybdenum, 0.1-0.2; the remainder being iron.
EFFECT: enhanced strength of steel.
1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| STEEL | 2006 |
|
RU2323273C2 |
| STEEL | 2006 |
|
RU2321672C1 |
| STEEL | 2007 |
|
RU2339730C1 |
| THERMO RESISTANT STEEL | 2006 |
|
RU2331713C1 |
| ALLOY FOR MANUFACTURING OF STAMPING TOOL | 2008 |
|
RU2367698C1 |
| TOOL STEEL | 2006 |
|
RU2327803C1 |
| STEEL | 2006 |
|
RU2313616C1 |
| STEEL | 2008 |
|
RU2361962C1 |
| CAST IRON | 2006 |
|
RU2320764C1 |
| STEEL | 2006 |
|
RU2318069C1 |
