55H18G14S2TL
parts operating at high temperature and pressure. Steel heat resistant up to 950 ° C, in a sulfuric acid medium unstable, austenitic.
Classification
| Country | Section | Category |
|---|---|---|
| CIS, Russia, Ukraine | Steels and alloys for castings | Steel for casting with special properties |
Chemical composition
| Standard | Fe, % | Si, % | Mn, % | Cr, % | Ti, % | P, % | C, % | S, % |
|---|---|---|---|---|---|---|---|---|
| GOST 977-88 | 61.48–69.95 | 1.5–2.5 | 12–16 | 16–19 | 0.1–0.3 | < 0.04 | 0.45–0.65 | < 0.03 |
Information on suppliers
Mechanical properties at 20 °C
| Rolling | Standard | Size, mm | Tension | Classifiers | $$\sigma _{U}$$, $$MPa$$ | $$\epsilon_L$$, % | $$KCU\cdot 10^{3}$$, $$\frac{J}{m^2}$$ | Treatment |
|---|---|---|---|---|---|---|---|---|
| Castings | GOST 977-88 | 638 | 6 | 147 |
Standards
| Standard | Description |
|---|---|
| GOST 977-88 |
Description of chemical elements
| Element | Units of measurement | Description |
|---|---|---|
| Fe | % | Iron |
| Si | % | Silicon |
| Mn | % | Manganese |
| Cr | % | Chrome |
| Ti | % | Titan |
| P | % | Phosphorus |
| C | % | Carbon |
| S | % | Sulfur |
Description of mechanical properties
| Parameter | Units of measurement | Description |
|---|---|---|
| $$\sigma _{U}$$ | $$MPa$$ | Ultimate tensile strength |
| $$\epsilon_L$$ | % | Elongation at break (longitudinal) |
| $$KCU\cdot 10^{3}$$ | $$\frac{J}{m^2}$$ | Impact toughness |