CrN55MbYu-Vd (circle, wire, tube, sheet, strip) (ep666)
Relevance
Heat-resistant nickel-based alloy of the given grade is used in production of semi-finished products such as bars, forgings, pipes, hot-rolled sheets intended for manufacturing parts for gas-turbine engines, installations, pipeline fittings for nuclear power plants and equipment for power engineering. The material in modern engines for turbine blades must have high resistance to fracture under thermal, low-cycle fatigue, which is the main type of fracture today. The risk of fracture can be exacerbated by surface reactions that occur due to softening of grain boundaries and gas corrosion. The main demands on the material for turbine blades are caused by the latest developments in engine designs, the continuous increase in ductility, low cycle fatigue resistance, thermal fatigue, heat resistance and resistance to gaseous media.
The maximum recommended service temperature for a limited time period is +900°C, the temperature at which severe airborne scale formation begins is +1100°C.
Processing of Rolled Products
| Type | Standard | Technical specifications |
|---|---|---|
| Bar sections | В32 | 14-1-2606-79 |
| Billets. Slabs. Blanks. | В31 | 14-1-3626-83 |
| Machining by pressure. Forgings. | В03 | 14-1-3628-83 |
| Sheets strips | В53 | 14-1-3191-81 |
Technical specifications, GOST
| Range | STATE STANDARD, TU |
| Round, high-quality steel surface, with special finishing | 14 955-77 |
| Hot-rolled steel round bars | 2590-2006 |
| Hot-rolled square steel bars | 2591-2006 |
| High precision shaped steel sections | 14-11-245-88 |
| Round, square forged steel | 1133-71 |
| Forged, hot-rolled tool steel strips | 4405-75 |
| Round steel calibrated | 7417-75 |
| Square steel calibrated. | 8559-75 |
| Hot rolled steel bars | 103-2006 |
| Calibrated, section steel is corrosion-resistant, heat-resistant, heat-resistant | 5949-75 |
| Calibrated hexagonal rolled steel | 8560-78 |
| Forged steel square, round | 1133-71 |
| Heat-resistant, heat-resistant, corrosion-resistant, high-alloy steels | 5632-72 |
| Hot-rolled section steel hexahedral steel | 2879-2006 |
Delivery
Wire with diameter less than 9 mm is sold in coils, and thicker than 9 mm it is supplied in straight lengths: unmeasured, measured, and multiples of measured. High-alloyed quality steel makes it possible to produce products in standard lengths of 1-6 m. To order from the steel ХН55МББЮ-вд, ep666 are made circles, wire, sheet, pipe, strip of any parameters. We have the best price-quality ratio for the whole range of products.
Vendor
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