Designation
Name |
The value |
Designation GOST Cyrillic |
АЧС-3 |
Designation GOST Latin |
AChC-3 |
Transliteration |
AChS-3 |
By chemical elements |
- |
Description
Cast iron Achs-3 is used: for the production of castings, in combination with tempered or normalized shaft or the shaft, not subjected to heat treatment.
Note
Grey antifriction cast iron with lamellar graphite.
Standards
Name |
Code |
Standards |
Cast iron |
В11 |
GOST 1585-85 |
Chemical composition
Standard |
C |
S |
P |
Mn |
Cr |
Si |
Ni |
Fe |
Cu |
Ti |
GOST 1585-85 |
3.2-3.8 |
≤0.12 |
0.15-0.4 |
0.3-0.7 |
≤0.3 |
1.7-2.6 |
≤0.3 |
Rest |
0.2-0.5 |
0.03-0.1 |
Fe is the basis.
Technological properties
Name |
The value |
Microstructure |
Perlite or pearlitic-ferritic. Graphite: a form - ПГф1, ПГф2, ПГф4, ВГф5; size - ПГД15 - ПГД180; distribution - ПГр1 - ПГр3. Perlite: footprint - П85, П70; dispersion - ПД0,3 - ПД1,6. Fosfina the eutectic (nature of distribution) - ФЭр1, ФЭр2. Cementite is not allowed. |
Operating conditions |
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 a pressure of P≤6.0 MPa sliding speed V must be ≤1.0 m/s and the product P·V ≤ 5.0 MPa·m/s. |