00H20N42M4V3B (EP743)
It is an iron-nickel alloy intended for the manufacture of special parts of machine tools and industrial equipment. It is characterized by increased resistance to corrosion (atmospheric and chemical) and is not prone to corrosion cracking. The alloy can be used in the conditions of aerosols and saturated vapors, which include hydrogen sulfide and chlorine compounds. Available in the form of bars, sheets, forgings of complex shape and seamless pipes produced by cold and hot rolling.
Classification
| Country | Section | Category |
|---|---|---|
| CIS, Russia, Ukraine | Corrosion-resistant alloys and steels | Corrosion-resistant alloys |
Chemical composition
| Standard | Fe, % | Si, % | Mn, % | Cr, % | Ni, % | P, % | C, % | S, % | Nb, % | Mo, % | W, % |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 20.825–31.125 | < 0.5 | 1.2–1.8 | 20–22 | 40–45 | < 0.02 | < 0.04 | < 0.015 | 0.9–1.3 | 4–5 | 2.8–3.5 |
Note: The presence of impurities of other metals and non-metals is not allowed.
Information on suppliers
Physical characteristics
| Temperature, °C | $$\alpha\cdot 10^{6}$$, $$K^{-1}$$ |
|---|---|
| 20 | 1.21 |
Casting and technological parameters
| melting point, °C |
|---|
| 1421 |
Description of chemical elements
| Element | Units of measurement | Description |
|---|---|---|
| Fe | % | Iron |
| Si | % | Silicon |
| Mn | % | Manganese |
| Cr | % | Chrome |
| Ni | % | Nickel |
| P | % | Phosphorus |
| C | % | Carbon |
| S | % | Sulfur |
| Nb | % | Niobium |
| Mo | % | Molybdenum |
| W | % | Tungsten |
Description of physical characteristics
| Parameter | Units of measurement | Description |
|---|---|---|
| $$\alpha\cdot 10^{6}$$ | $$K^{-1}$$ | Coefficient of thermal (linear) expansion (range 20°C–T) |
Description of the casting and technological parameters
| Parameter | Units of measurement | Description |
|---|---|---|
| melting point | °C | The temperature at which solid crystalline body makes the transition to the liquid state and Vice versa |