Alloy AO9-2
Alloy AMK
Alloy AMST
Alloy AH-2.5
Alloy AO12-1
Alloy AO20-1
Alloy AO3-7
Alloy AO6-1
Alloy AO9-1
Alloy AO9-2
Alloy ACM
Designation
| Name | The value |
|---|---|
| Designation GOST Cyrillic | АО9-2 |
| Designation GOST Latin | AO9-2 |
| Transliteration | AO9-2 |
| The chemical elements | - |
Description
Alloy AO9−2 is used: for castings monometallic liners and sleeves.
Note
The recommended modes of operation:
— load ≤ 24,5 Mn/m2 (250 kgf/cm2);
— sliding speed ≤ 15 m/s;
— temperature ≤ 100 °C;
— recommended shaft hardness ≥ 250 HB.
On an antifriction layer of articles coated with a soft metal or a polymer antifriction coating thickness of from 0.003 to 0.03 mm. permitted by agreement with the consumer in technically justified cases to cover the product with a soft metal or polymer coating.
Standards
| Name | Code | Standards |
|---|---|---|
| Non-ferrous metals, including rare metals, and their alloys | В51 | GOST 14113-78 |
Chemical composition
| Standard | Si | Ni | Fe | Cu | Al | Sn |
|---|---|---|---|---|---|---|
| GOST 14113-78 | 0.3-0.7 | 0.8-1.2 | ≤0.5 | 2-2.5 | The rest | 8-10 |
Al is the base.
According to GOST 14113-78, the content of other impurities, individually, should be ≤ 0.050%, and the total content of other impurities should be ≤ 0.10%.
According to GOST 14113-78, the content of other impurities, individually, should be ≤ 0.050%, and the total content of other impurities should be ≤ 0.10%.
Mechanical characteristics
| Section, mm | sT|s0,2, MPa | σB, MPa | d5, % | Brinell hardness number, MPa |
|---|---|---|---|---|
| Casting in a metal mold in the state of delivery | ||||
| 78-105 | 130-170 | 2.3-6.3 | 50-60 | |
Description mechanical marks
| Name | Description |
|---|---|
| Section | Section |
| sT|s0,2 | Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2% |
| σB | Limit short-term strength |
| d5 | Elongation after rupture |
