50H25N35S2B
Used for the manufacture of pipes tsentrobezhnolityh for the manufacture of the coils of the tubular furnace installations production of ammonia, hydrogen, ethylene, carbon disulphide, etc., operating in the temperature range 760 — 1060 °C and a pressure of 3.92 MPa (40 kgf/cm2).
Classification
| Country | Section | Category |
|---|---|---|
| CIS, Russia, Ukraine | Corrosion-resistant alloys and steels | Corrosion-resistant alloys |
Chemical composition
| Standard | Fe, % | Si, % | Sn, % | Mn, % | Cr, % | Ti, % | Cu, % | Zn, % | Ni, % | V, % | Pb, % | As, % | Ce, % | P, % | C, % | S, % | Nb, % | Mo, % |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TU 1333-047-00220302-02 | 29.68–96.269 | 1.9–2.4 | < 0.01 | 0.05–0.5 | 24–28 | 0.0005–0.1 | < 0.2 | < 0.01 | 28–36 | 0.0005–0.2 | < 0.01 | < 0.01 | 0.08–0.12 | < 0.03 | 0.4–0.5 | < 0.03 | 1.3–1.7 | < 0.5 |
Information on suppliers
Mechanical properties at 20 °C
| Rolling | Standard | Size, mm | Tension | Classifiers | $$\sigma _{U}$$, $$MPa$$ | $$\sigma_{0.2}$$, $$MPa$$ | δ, % | Treatment |
|---|---|---|---|---|---|---|---|---|
| TU 1333-047-00220302-02 | > 441 | > 245 | > 8 | Centrifugal tubes with an outer diameter of 85-320 mm. Quenching in water or air from 1100-1150 ° C |
Analogues
| Germany | European Union | USA |
|---|---|---|
| F 1.4849 | GX40NiCrSiNb35-26 EN 10295:2002 | Thermax 533 |
| 1.4849 (GX40NiCrSiNb38-19) |
Standards
| Standard | Description |
|---|---|
| TU 1333-047-00220302-02 |
Description of chemical elements
| Element | Units of measurement | Description |
|---|---|---|
| Fe | % | Iron |
| Si | % | Silicon |
| Sn | % | Tin |
| Mn | % | Manganese |
| Cr | % | Chrome |
| Ti | % | Titan |
| Cu | % | Copper |
| Zn | % | Zinc |
| Ni | % | Nickel |
| V | % | Vanadium |
| Pb | % | Lead |
| As | % | Arsenic |
| Ce | % | Cerium |
| P | % | Phosphorus |
| C | % | Carbon |
| S | % | Sulfur |
| Nb | % | Niobium |
| Mo | % | Molybdenum |
Description of mechanical properties
| Parameter | Units of measurement | Description |
|---|---|---|
| δ | % | Elongation after rupture |
| $$\sigma_{0.2}$$ | $$MPa$$ | Tensile stress required to produce a total elongation of 0.2% |
| $$\sigma _{U}$$ | $$MPa$$ | Ultimate tensile strength |