Alloy АЛ8
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Alloy AK6M2
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Alloy AK7pch (AL9-1)
Alloy AK7C9 (AL11)
Alloy AK7h (AL9)
Alloy AK8L (AL34)
Alloy AK8M (AL32)
Alloy AK8M3
Alloy AK8M3h (VAL8)
Alloy AK9 (AL4V)
Alloy AK9M2
Alloy AK9pch (AL4-1)
Alloy AK9s
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Alloy AL1
Designation
| Name | The value |
|---|---|
| Designation GOST Cyrillic | АЛ8 |
| Designation GOST Latin | AL8 |
| Transliteration | AL8 |
| The chemical elements | - |
Description
Alloy АЛ8 used: for the manufacture of shaped castings for various purposes; casting parts of valves and actuators to it.
Note
The alloy is resistant. АЛ8 alloy is prone to natural aging, which leads to a significant reduction in elongation.
Standards
| Name | Code | Standards |
|---|---|---|
| Non-ferrous metals, including rare metals, and their alloys | В51 | GOST 2685-75 |
| Thermal and thermochemical treatment of metals | В04 | OST 1 90088-80 |
| Castings from non-ferrous metals and alloys | В84 | OST 26-07-1114-74 |
Chemical composition
| Standard | Mn | Si | Fe | Cu | Al | Ti | Zn | Zr | Mg | Be |
|---|---|---|---|---|---|---|---|---|---|---|
| GOST 2685-75 | ≤0.1 | ≤0.3 | ≤0.3 | ≤0.1 | The rest | ≤0.07 | ≤0.1 | ≤0.2 | 9.3-10 | ≤0.07 |
Al is the base.
According to GOST 2685-75, the iron content is specified for casting in sand and shell molds, for melted models, casting into chill molds, and injection molding. The amount of allowable impurities should be for casting in sand and shell molds, for the smelted models, casting in chill molds, and die casting ≤ 1.00%. To increase the mechanical properties by 15-20%, it is necessary to limit the content of iron and silicon impurities in the alloy to 0.030% of each.
According to GOST 2685-75, the iron content is specified for casting in sand and shell molds, for melted models, casting into chill molds, and injection molding. The amount of allowable impurities should be for casting in sand and shell molds, for the smelted models, casting in chill molds, and die casting ≤ 1.00%. To increase the mechanical properties by 15-20%, it is necessary to limit the content of iron and silicon impurities in the alloy to 0.030% of each.
Mechanical characteristics
| σB, MPa | d | Brinell hardness number, MPa |
|---|---|---|
| Castings according to GOST 2685-75 | ||
| ≥284 | ≥9 | ≥60 |
Description mechanical marks
| Name | Description |
|---|---|
| σB | Limit short-term strength |
| d | Elongation after rupture |
Physical characteristics
| Temperature | Е, ГПа | r, кг/м3 | R, НОм · м |
|---|---|---|---|
| 20 | 70 | 2550 | 912 |
A description of the physical symbols
| Name | Description |
|---|---|
| l | Coefficient of thermal conductivity |
| С | Specific heat |
