18H15N3M-SH (18H15N3M, DI1-SH, DI1)
For the manufacture of parts of structures in the aircraft industry
Classification
| Country | Section | Category |
|---|---|---|
| CIS, Russia, Ukraine | Corrosion-resistant alloys and steels | Corrosion-resistant heat-resistant steel |
Chemical composition
| Standard | Fe, % | Si, % | Mn, % | Cr, % | Ni, % | P, % | C, % | S, % | Mo, % | W, % |
|---|---|---|---|---|---|---|---|---|---|---|
| TU 14-1-3297-82 | 78.045–82.55 | < 0.6 | < 0.6 | 14.5–16.5 | 2.5–3 | < 0.03 | 0.15–0.21 | < 0.015 | 0.3–0.5 | < 0.5 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Rod | TU 14-1-3297-82 | 930 | 735 | 55 | 880 | 14 | Tempering 1050oC, Cooling oil, Vacation 640 - 680oC, Cooling air | |||
| Rod | TU 14-1-3297-82 | 1130 | 885 | 50 | 690 | 12 | Tempering 1050oC, Cooling oil, Vacation 540 - 580oC, Cooling air |
Standards
| Standard | Description |
|---|---|
| TU 14-1-3297-82 |
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 |
| W | % | Tungsten |
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 |