20-PV (20pv)
For the production of seamless cold, teplodeformirovannyh, hot-including hot-pressed and hot-reduced pipes for steam boilers and piping systems with high and supercritical steam parameters
Classification
| Country | Section | Category |
|---|---|---|
| CIS, Russia, Ukraine | Structural steel | Carbonaceous quality structural steel |
Chemical composition
| Standard | Si, % | Mn, % | Cr, % | Cu, % | Ni, % | P, % | C, % | S, % |
|---|---|---|---|---|---|---|---|---|
| TU 14-3Р-55 - 2001 | 0.17–0.37 | 0.35–0.65 | < 0.15 | < 0.15 | < 0.15 | < 0.015 | 0.18–0.24 | < 0.015 |
Information on suppliers
Mechanical properties at 20 °C
| Rolling | Standard | Size, mm | Tension | Classifiers | $$\sigma _{U}$$, $$MPa$$ | $$\sigma_{Y}$$, $$MPa$$ | $$\psi$$, % | $$KCU\cdot 10^{3}$$, $$\frac{J}{m^2}$$ | d5, % | Treatment |
|---|---|---|---|---|---|---|---|---|---|---|
| Trumpet | TU 14-3Р-55 - 2001 | 412–549 | 216 | 45 | 490 | 24 | ||||
| Trumpet | TU 14-3Р-55 - 2001 | 412–549 | 216 | 40 | 390 | 22 |
Analogues
| Germany |
|---|
| 1.0255 (P235TR2) |
| 1.0352 (P245GH) |
Standards
| Standard | Description |
|---|---|
| TU 14-3Р-55 - 2001 |
Description of chemical elements
| Element | Units of measurement | Description |
|---|---|---|
| Si | % | Silicon |
| Mn | % | Manganese |
| Cr | % | Chrome |
| Cu | % | Copper |
| Ni | % | Nickel |
| 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 |
| $$\psi$$ | % | Reduction in cross section on fracture |
| $$KCU\cdot 10^{3}$$ | $$\frac{J}{m^2}$$ | Impact toughness |