FIELD: metallurgy.
SUBSTANCE: invention relates to the field of ferrous metallurgy, namely, to the composition of steels used in engineering. Steel contains, mass%: carbon 1.0–1.1; silicon 0.3–0.5; manganese 3.5–3.7; chromium 0.2–0.3; copper 0.8–1.2; nickel 0.8–1.4; cobalt 0.2–0.3; vanadium 0.2–0.3; niobium 0.2–0.3; praseodymium 2.2–2.4; tungsten 0.2–0.3; boron 0.05–0.1; rest being iron.
EFFECT: strength of steel is increased.
1 cl, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| STEEL | 2017 |
|
RU2657392C1 |
| CAST IRON | 2016 |
|
RU2629404C1 |
| STEEL | 2017 |
|
RU2635645C1 |
| CAST IRON | 2008 |
|
RU2361000C1 |
| CAST IRON | 2017 |
|
RU2634336C1 |
| DIE STEEL | 2006 |
|
RU2307200C1 |
| ALLOY | 2017 |
|
RU2652920C1 |
| CAST IRON | 2016 |
|
RU2629405C1 |
| STEEL | 2017 |
|
RU2651074C1 |
| CAST IRON | 2014 |
|
RU2557849C1 |
