Cast iron achv-2
Cast iron AChV-1
Cast iron AChV-2
Cast iron AChK-1
Cast iron AChK-2
Cast iron AChS-1
Cast iron AChS-2
Cast iron ASF-3
Cast iron AChS-4
Cast iron AChS-5
Cast iron AChS-6
Designation
| Name | The value |
|---|---|
| Designation GOST Cyrillic | АЧВ-2 |
| Designation GOST Latin | AChB-2 |
| Transliteration | AChV-2 |
| The chemical elements | - |
Description
Cast iron achv-2 applies: for the production of castings, working in conditions of friction with high peripheral speeds in a pair with the shaft, not subjected to heat treatment.
Note
High strength antifriction cast iron with nodular graphite.
Standards
| Name | Code | Standards |
|---|---|---|
| Cast iron | В11 | GOST 1585-85 |
Chemical composition
| Standard | C | S | P | Mn | Si | Fe | Mg |
|---|---|---|---|---|---|---|---|
| GOST 1585-85 | 2.8-3.5 | ≤0.03 | ≤0.2 | 0.4-0.8 | 2.2-2.7 | The rest | 0.03-0.08 |
Fe is the basis.
Technological properties
| Name | The value |
|---|---|
| Microstructure | Perlite or pearlitic-ferritic. Graphite: a form - ШГф2, ШГф4, ШГф5; size - ШГД15 - ШГД180; distribution - ПГр1 - ПГр3. Perlite: footprint - П70-P45; dispersion - ПД0,3 - ПД1,0. Fosfina the eutectic (nature of distribution) - ФЭр1, ФЭр2. Cementite is not more than 5%. |
| terms of Use | The use of castings made of cast iron notificationname in friction requires careful installation, providing the pair of the friction surfaces and the absence of bias; continuous lubrication, permitting true and significant heating of the friction units; increase of the gap compared to the established bronze 15-30%, in the presence of significant heating osetreni in the work - up to 50%; running at idle and progressively higher loads. At pressures P≤1.0 MPa sliding speed V must be ≤5.0 m/s and the product P·V ≤ 3,0 MPa·m/s At a pressure of P≤12,0 MPa sliding speed V must be ≤1.0 m/s and the product P·V ≤ 12,0 MPa·m/s. |
