20YUCHA (20YUCH)
for the production of seamless hot gas pipes increased corrosion resistance and cold resistance; for the manufacture of welded vessels gas and petrochemical industries;
Classification
| Country | Section | Category |
|---|---|---|
| CIS, Russia, Ukraine | Structural steel | Alloyed structural steel |
Chemical composition
| Standard | Fe, % | Si, % | Mn, % | Cr, % | Cu, % | Ni, % | V, % | Al, % | Ce, % | P, % | C, % | S, % | CED, % |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TU 14-162-14 - 96 | 97.45–99.13 | 0.17–0.37 | 0.5–0.65 | < 0.25 | < 0.25 | < 0.25 | < 0.05 | 0.03–0.05 | < 0.05 | < 0.015 | 0.17–0.22 | < 0.015 | < 0.38 |
Information on suppliers
Mechanical properties at 20 °C
| Rolling | Standard | Size, mm | Tension | Classifiers | $$\sigma _{U}$$, $$MPa$$ | $$\sigma_{Y}$$, $$MPa$$ | d5, % | Treatment |
|---|---|---|---|---|---|---|---|---|
| Pipes are hot deformed. | TU 14-162-14 - 96 | 502–627 | 338–470 | 25 |
Analogues
| Germany | USA |
|---|---|
| L 360 MB | 5L Gr X52 |
Standards
| Standard | Description |
|---|---|
| TU 14-162-14 - 96 |
Description of chemical elements
| Element | Units of measurement | Description |
|---|---|---|
| CED | % | CED = C + Mn / 6 + (Cr + Mo + V) / 5 + (Ni + Cu) / 15 |
| Fe | % | Iron |
| Si | % | Silicon |
| Mn | % | Manganese |
| Cr | % | Chrome |
| Cu | % | Copper |
| Ni | % | Nickel |
| V | % | Vanadium |
| Al | % | Aluminium |
| Ce | % | Cerium |
| P | % | Phosphorus |
| C | % | Carbon |
| S | % | Sulfur |
Description of mechanical properties
| Parameter | Units of measurement | Description |
|---|---|---|
| d5 | % | Elongation at break |
| $$\sigma_{Y}$$ | $$MPa$$ | Yield strength |
| $$\sigma _{U}$$ | $$MPa$$ | Ultimate tensile strength |