HN58VMKYUR-VD (EP238-VD, HN58VMKYUR)
For the manufacture of various parts-duty power-plant engineering, engine, turbine; turbine blades; details of special equipment.
Classification
| Country | Section | Category |
|---|---|---|
| CIS, Russia, Ukraine | Heat resistant steels and alloys | Heat resistant alloys |
Chemical composition
| Standard | Fe, % | Si, % | B, % | Mn, % | Co, % | Cr, % | Cu, % | Ni, % | Al, % | Ce, % | P, % | C, % | S, % | Mo, % | W, % |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GOST 23705 - 79 | < 1 | < 0.4 | < 0.02 | < 0.3 | 13.5–16 | 7.5–9 | < 0.07 | 52.885–63.9 | 6.1–6.7 | < 0.02 | < 0.015 | < 0.08 | < 0.01 | 3–5.5 | 6–8 |
Information on suppliers
Mechanical properties at 950 °C
| Rolling | Standard | Size, mm | Tension | Classifiers | $$\sigma _{U}$$, $$MPa$$ | $$\psi$$, % | d5, % | Treatment |
|---|---|---|---|---|---|---|---|---|
| Rod | GOST 23705 - 79 | 490 | 8 | 4 | Quenching and aging |
Brinell hardness number
| Rolling | Standard | Classifiers | Value, HBW |
|---|---|---|---|
| Rod | GOST 23705 - 79 | Hardening, aging | 302–352 |
Standards
| Standard | Description |
|---|---|
| GOST 23705 - 79 | |
| TU 14-1-223-72 |
Description of chemical elements
| Element | Units of measurement | Description |
|---|---|---|
| Fe | % | Iron |
| Si | % | Silicon |
| B | % | Bor |
| Mn | % | Manganese |
| Co | % | Cobalt |
| Cr | % | Chrome |
| Cu | % | Copper |
| Ni | % | Nickel |
| Al | % | Aluminium |
| Ce | % | Cerium |
| P | % | Phosphorus |
| C | % | Carbon |
| S | % | Sulfur |
| Mo | % | Molybdenum |
| W | % | Tungsten |
Description of mechanical properties
| Parameter | Units of measurement | Description |
|---|---|---|
| d5 | % | Elongation at break |
| $$\sigma _{U}$$ | $$MPa$$ | Ultimate tensile strength |
| $$\psi$$ | % | Reduction in cross section on fracture |