40HN2SMA-VD (EI643-VD, EI-643-VD)
For the production of seamless pipes and parts of chemical engineering and special equipment.
Classification
| Country | Section | Category |
|---|---|---|
| CIS, Russia, Ukraine | Structural steel | Alloyed structural steel |
Chemical composition
| Standard | Fe, % | Si, % | Mn, % | Cr, % | Ni, % | P, % | C, % | S, % | Mo, % |
|---|---|---|---|---|---|---|---|---|---|
| TU 14-3-674 - 78 | 94.18–95.54 | 0.9–1.2 | 0.25–0.5 | 0.8–1.1 | 1.8–2.1 | < 0.025 | 0.36–0.44 | < 0.005 | 0.35–0.45 |
Information on suppliers
Mechanical properties at 20 °C
| Rolling | Standard | Size, mm | Tension | Classifiers | $$\sigma _{U}$$, $$MPa$$ | $$\psi$$, % | d5, % | Treatment |
|---|---|---|---|---|---|---|---|---|
| Alloy | TU 1-92-156-90 | 1860 | 35 | 6 | Hardening 900oC, oil, Release 200 - 260oC, air, |
Standards
| Standard | Description |
|---|---|
| TU 14-3-674 - 78 |
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 |
| Mo | % | Molybdenum |
Description of mechanical properties
| Parameter | Units of measurement | Description |
|---|---|---|
| d5 | % | Elongation at break |
| $$\sigma _{U}$$ | $$MPa$$ | Ultimate tensile strength |
| $$\psi$$ | % | Reduction in cross section on fracture |