Cast iron KCH30-6
Cr30-6 cast iron
Pig-iron КЧ33-8
Cr35-10 cast iron
Cr37-12 cast iron
Cr45-7 cast iron
Cast iron КЧ50-5
Cast iron KCh55-4
Cr60-3 cast iron
Cr65-3 cast iron
Cr70-2 cast iron
Cr80-1.5 cast iron
Cast iron PM1.3
Designation
Name | The value |
---|---|
Designation GOST Cyrillic | КЧ30-6 |
Designation GOST Latin | KCh30-6 |
Transliteration | KCh30-6 |
The chemical elements | - |
Description
Cast iron KCH30−6 is used: for the manufacture of parts of castings that work under low static and dynamic loads; parts of the pipeline valves and drives; plumbing and construction equipment
Note
Malleable cast iron ferritic characterized by a ferritic or ferritic-pearlitic microstructure of the metallic base.
Standards
Name | Code | Standards |
---|---|---|
Castings of cast iron (gray and malleable cast iron) | В81 | GOST 1215-79, OST 24.207.01-90 |
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 | 2.6-2.9 | ≤0.2 | ≤0.18 | 0.4-0.6 | ≤0.08 | 1-1.6 | The rest |
Fe is the basis.
According to GOST 1215-79, the mass fraction of carbon and silicon should be within the range of 3.70-4.20%. The chemical composition is given for the method of melting in cupola.
According to GOST 1215-79, the mass fraction of carbon and silicon should be within the range of 3.70-4.20%. The chemical composition is given for the method of melting in cupola.
Mechanical characteristics
σB, MPa | d | Brinell hardness number, MPa |
---|---|---|
Castings on OST 1 90077-72 | ||
≥294 | ≥6 | 100-163 |
Description mechanical marks
Name | Description |
---|---|
σB | Limit short-term strength |
d | Elongation after rupture |