Cast iron КЧ80-1,5
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Cr80-1.5 cast iron
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Designation
| Name | The value |
|---|---|
| Designation GOST Cyrillic | КЧ80-1,5 |
| Designation GOST Latin | KCh80-1,5 |
| Transliteration | KCh80-15 |
| The chemical elements | - |
Description
Cast iron КЧ80−1,5 is used: for the manufacture of castings of machine parts that require high strength and ductility.
Note
Malleable cast iron pearlitic class, characterized by a mainly pearlitic microstructure of the metallic base.
Standards
| Name | Code | Standards |
|---|---|---|
| Castings of cast iron (gray and malleable cast iron) | В81 | GOST 1215-79 |
| Pipes from ferrous metals and alloys cast and connecting parts to them | В61 | GOST 8943-75, GOST 8944-75, GOST 8946-75, GOST 8947-75, GOST 8948-75, GOST 8949-75, GOST 8950-75, GOST 8951-75, GOST 8952-75, GOST 8953-75, GOST 8954-75, GOST 8955-75, GOST 8956-75, GOST 8957-75, GOST 8958-75, GOST 8959-75, GOST 8960-75, GOST 8961-75, GOST 8962-75, GOST 8963-75 |
Chemical composition
| Standard | C | S | P | Mn | Cr | Si | Fe |
|---|---|---|---|---|---|---|---|
| GOST 1215-79 | 2.4-2.7 | ≤0.06 | ≤0.1 | 0.3-1 | ≤0.08 | 1.2-1.4 | The rest |
Fe is the basis.
According to GOST 1215-79, the mass fraction of carbon and silicon should be within the range of 3.60-3.90%. The chemical composition is given for the method of smelting an electric-electric furnace.
According to GOST 1215-79, the mass fraction of carbon and silicon should be within the range of 3.60-3.90%. The chemical composition is given for the method of smelting an electric-electric furnace.
Mechanical characteristics
| σB, MPa | d | Brinell hardness number, MPa |
|---|---|---|
| Castings on OST 1 90077-72 | ||
| ≥784 | ≥1.5 | 270-320 |
Description mechanical marks
| Name | Description |
|---|---|
| σB | Limit short-term strength |
| d | Elongation after rupture |
