10H11N20T3R (EI696A)
Details of turbines.
turbine discs, circular parts, fasteners, compressor parts and the working part of the turbine with an operating temperature up to 700 deg .; austenitic steel
Classification
| Country | Section | Category |
|---|---|---|
| CIS, Russia, Ukraine | Heat resistant steels and alloys | Heat resistant high alloy steel |
Chemical composition
| Standard | Fe, % | Si, % | B, % | Mn, % | Cr, % | Ti, % | Ni, % | Al, % | P, % | C, % | S, % |
|---|---|---|---|---|---|---|---|---|---|---|---|
| GOST 5632-72 | 60.325–69.4 | < 1 | < 0.02 | < 1 | 10–12.5 | 2.6–3.2 | 18–21 | < 0.8 | < 0.035 | < 0.1 | < 0.02 |
Information on suppliers
Physical characteristics
| Temperature, °C | $$E\cdot 10^{9}$$, $$MPa$$ | $$\alpha\cdot 10^{6}$$, $$K^{-1}$$ | $$\varkappa$$, $$\frac{W}{m\cdot K}$$ | $$\rho$$, $$\frac{kg}{m^3}$$ |
|---|---|---|---|---|
| 20 | 160 | 15.2 | 7900 | |
| 100 | 15.9 | 16.3 | ||
| 200 | 17.4 | 17.5 | ||
| 300 | 18.8 | 18.8 | ||
| 400 | 140 | 19.9 | 20.5 | |
| 500 | 135 | 20.3 | 22.6 | |
| 600 | 132 | 21.1 | 23.8 | |
| 700 | 115 | 21.8 | 25.1 | |
| 800 | 113 | 21.6 | 26.8 | |
| 900 | 90 | 21.3 | 28.5 |
Mechanical properties at 20 °C
| Rolling | Standard | Size, mm | Tension | Classifiers | $$\sigma _{U}$$, $$MPa$$ | $$\sigma_{P}$$, $$MPa$$ | $$\epsilon_L$$, % | $$\psi$$, % | $$KCU\cdot 10^{3}$$, $$\frac{J}{m^2}$$ | Treatment |
|---|---|---|---|---|---|---|---|---|---|---|
| Sheet cold rolled. | 600 | 40 | Hardening 1100 ° C, air | |||||||
| Rod | GOST 5949-75 | 880 | 590 | 10 | 15 | 290 | Quenching and aging |
Standards
| Standard | Description |
|---|---|
| GOST 5632-72 | |
| TU 14-1-1671-76 |
Description of chemical elements
| Element | Units of measurement | Description |
|---|---|---|
| Fe | % | Iron |
| Si | % | Silicon |
| B | % | Bor |
| Mn | % | Manganese |
| Cr | % | Chrome |
| Ti | % | Titan |
| Ni | % | Nickel |
| Al | % | Aluminium |
| P | % | Phosphorus |
| C | % | Carbon |
| S | % | Sulfur |
Description of physical characteristics
| Parameter | Units of measurement | Description |
|---|---|---|
| $$E\cdot 10^{9}$$ | $$MPa$$ | Elastic modulus |
| $$\alpha\cdot 10^{6}$$ | $$K^{-1}$$ | Coefficient of thermal (linear) expansion (range 20°C–T) |
| $$\varkappa$$ | $$\frac{W}{m\cdot K}$$ | Coefficient of thermal conductivity (the heat capacity of the material) |
| $$\rho$$ | $$\frac{kg}{m^3}$$ | The density of the material |
Description of mechanical properties
| Parameter | Units of measurement | Description |
|---|---|---|
| $$\sigma _{U}$$ | $$MPa$$ | Ultimate tensile strength |
| $$\sigma_{P}$$ | $$MPa$$ | Proportionality limit |
| $$\epsilon_L$$ | % | Elongation at break (longitudinal) |
| $$\psi$$ | % | Reduction in cross section on fracture |
| $$KCU\cdot 10^{3}$$ | $$\frac{J}{m^2}$$ | Impact toughness |