15H6SYU (H6SYU)
Details of boiler plants, Pipe; heat-resistant steel
Classification
| Country | Section | Category |
|---|---|---|
| CIS, Russia, Ukraine | Heat resistant steels and alloys | Heat resistant low alloy steel |
Chemical composition
| Standard | Fe, % | Si, % | Mn, % | Cr, % | Al, % | P, % | C, % | S, % |
|---|---|---|---|---|---|---|---|---|
| GOST 5632-72 | 89.395–92.6 | 1.2–1.8 | < 0.5 | 5.5–7 | 0.7–1.1 | < 0.03 | < 0.15 | < 0.025 |
Information on suppliers
Mechanical properties at 20 °C
| Rolling | Standard | Size, mm | Tension | Classifiers | $$\sigma _{U}$$, $$MPa$$ | $$\sigma_{P}$$, $$MPa$$ | $$\epsilon_L$$, % | $$\psi$$, % | Treatment |
|---|---|---|---|---|---|---|---|---|---|
| Rod | GOST 5949-75 | 440 | 245 | 20 | 40 | Annealing 750-800 ° C, air cooling |
Analogues
| Germany |
|---|
| 1.4713 |
Standards
| Standard | Description |
|---|---|
| GOST 5632-72 |
Description of chemical elements
| Element | Units of measurement | Description |
|---|---|---|
| Fe | % | Iron |
| Si | % | Silicon |
| Mn | % | Manganese |
| Cr | % | Chrome |
| Al | % | Aluminium |
| P | % | Phosphorus |
| C | % | Carbon |
| S | % | Sulfur |
Description of mechanical properties
| Parameter | Units of measurement | Description |
|---|---|---|
| $$\sigma _{U}$$ | $$MPa$$ | Ultimate tensile strength |
| $$\sigma_{P}$$ | $$MPa$$ | Proportionality limit |
| $$\epsilon_L$$ | % | Elongation at break (longitudinal) |
| $$\psi$$ | % | Reduction in cross section on fracture |