FIELD: metallurgy.
SUBSTANCE: rapid steel contains, wt %: carbon 1.4-1.6, silicon 0.3-0.4, manganese 0.25-0.35, vanadium 5.5-6.5, molybdenum 5.0-5.5, chrome 4.5-5.5, copper 1.8-2.1, zirconium 0.15-0.35, rhenium 0.08-0.12, hafnium 7.0-8.0, niobium 1.0-2.0, boron 0.2-0.5, iron - the rest.
EFFECT: increased steel hardness.
1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| RAPID STEEL | 2016 |
|
RU2619537C1 |
| HIGH-SPEED STEEL | 1992 |
|
RU2012679C1 |
| STEEL | 1992 |
|
RU2012677C1 |
| STEEL | 2017 |
|
RU2647061C1 |
| STEEL | 2017 |
|
RU2657392C1 |
| STRUCTURAL STEEL | 2011 |
|
RU2445396C1 |
| STEEL | 2017 |
|
RU2651074C1 |
| CAST STEEL | 2017 |
|
RU2635641C1 |
| CAST STEEL | 2017 |
|
RU2639171C1 |
| CORROSIVE-RESISTANT ALLOY | 2017 |
|
RU2653376C1 |
