20HMFL
parts fittings, body parts, cylinders, running at temperatures up to 540 degrees.
Classification
| Country | Section | Category |
|---|---|---|
| CIS, Russia, Ukraine | Steels and alloys for castings | Ordinary steel for castings |
Chemical composition
| Standard | Fe, % | Si, % | Mn, % | Cr, % | V, % | P, % | C, % | S, % | Mo, % |
|---|---|---|---|---|---|---|---|---|---|
| GOST 977-88 | 96.2–97.42 | 0.2–0.4 | 0.6–0.9 | 0.9–1.2 | 0.2–0.3 | < 0.025 | 0.18–0.25 | < 0.025 | 0.5–0.7 |
Information on suppliers
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Castings | GOST 977-88 | 491 | 275 | 16 | 35 | 294 |
Heat Treatment Modes
| Treatment |
|---|
| Normalization 970 - 1000 and 960 - 980 ° C, Release 710 -740 ° C |
Analogues
| USA | Germany |
|---|---|
| Gr.WC6 | 1.7733 (24CrMoV5-5) |
Standards
| Standard | Description |
|---|---|
| GOST 977-88 |
Description of chemical elements
| Element | Units of measurement | Description |
|---|---|---|
| Fe | % | Iron |
| Si | % | Silicon |
| Mn | % | Manganese |
| Cr | % | Chrome |
| V | % | Vanadium |
| P | % | Phosphorus |
| C | % | Carbon |
| S | % | Sulfur |
| Mo | % | Molybdenum |
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 |