15H18N12S4TYUL (EI654L)
Production of shaped castings for the aviation industry.
Classification
| Country | Section | Category |
|---|---|---|
| CIS, Russia, Ukraine | Steels and alloys for castings | Steel for casting with special properties |
Chemical composition
| Standard | Fe, % | Si, % | Mn, % | Cr, % | Ti, % | Cu, % | Ni, % | V, % | Al, % | P, % | C, % | S, % | Mo, % | N, % | W, % |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| OST 1-90090 - 79 | 60.43–68.05 | 3.8–4.5 | 0.5–1 | 17–19 | 0.4–0.7 | < 0.3 | 10–13 | < 0.05 | 0.12–0.33 | < 0.025 | 0.13–0.19 | < 0.025 | < 0.2 | < 0.05 | < 0.2 |
Information on suppliers
Mechanical properties at 20 °C
| Rolling | Standard | Size, mm | Tension | Classifiers | $$\sigma _{U}$$, $$MPa$$ | $$\sigma_{Y}$$, $$MPa$$ | $$KCU\cdot 10^{3}$$, $$\frac{J}{m^2}$$ | d5, % | Treatment |
|---|---|---|---|---|---|---|---|---|---|
| Castings | OST 1-90090 - 79 | 650 | 280 | 280 | 16 | Quenching 1130 - 1150oC, water |
Standards
| Standard | Description |
|---|---|
| OST 1-90090 - 79 |
Description of chemical elements
| Element | Units of measurement | Description |
|---|---|---|
| Fe | % | Iron |
| Si | % | Silicon |
| Mn | % | Manganese |
| Cr | % | Chrome |
| Ti | % | Titan |
| Cu | % | Copper |
| Ni | % | Nickel |
| V | % | Vanadium |
| Al | % | Aluminium |
| P | % | Phosphorus |
| C | % | Carbon |
| S | % | Sulfur |
| Mo | % | Molybdenum |
| N | % | Nitrogen |
| W | % | Tungsten |
Description of mechanical properties
| Parameter | Units of measurement | Description |
|---|---|---|
| d5 | % | Elongation at break |
| $$\sigma_{Y}$$ | $$MPa$$ | Yield strength |
| $$\sigma _{U}$$ | $$MPa$$ | Ultimate tensile strength |
| $$KCU\cdot 10^{3}$$ | $$\frac{J}{m^2}$$ | Impact toughness |