Alloy ВАЛ12
Designation
| Name |
The value |
| Designation GOST Cyrillic |
ВАЛ12 |
| Designation GOST Latin |
BAL12 |
| Transliteration |
VAL12 |
| The chemical elements |
ВAlЛ12 |
Description
Alloy ВАЛ12 used: for the manufacture of a chill casting and liquid forging of high-strength corrosion-resistant devices that operate at extreme operating temperatures: long-term up to +250 °C, briefly up to +300 °C.
Note
High strength alloy system Al-Zn-Mg-Cu.
Standards
| Name |
Code |
Standards |
| Thermal and thermochemical treatment of metals |
В04 |
OST 1 90088-80 |
| Castings from non-ferrous metals and alloys |
В84 |
TU 1-92-98-85 |
Chemical composition
| Standard |
Mn |
Cr |
Si |
Fe |
Cu |
Al |
Ti |
Zn |
Zr |
Mg |
Be |
| TU 1-92-98-85 |
≤0.15 |
≤0.1 |
≤0.2 |
≤0.3 |
1-1.5 |
The rest |
0.1-0.2 |
6.5-7.5 |
0.1-0.2 |
2-2.8 |
0.07-0.15 |
Al is the base.
According to TU 1-92-98-85 the chemical composition is given for the alloy grade VAL12.
Mechanical characteristics
| Section, mm |
σB, MPa |
d |
Brinell hardness number, MPa |
| Casting on the other 1-92-98-85. Separately cast samples |
|
≥540 |
≥3 |
≥120 |
Description mechanical marks
| Name |
Description |
| Section |
Section |
| σB |
Limit short-term strength |
| d |
Elongation after rupture |
Technological properties
| Name |
The value |
| Features of production |
Casting on the other 1-92-98-85 supplied in the hardened and artificially aged condition in the T5 mode in accordance with OST 1 90088-80. For castings manufactured by the method for forming liquid metal, related to the groups control 2 and 2A allowed the testing of mechanical properties directly on the samples cut from the body of a casting from the party. All other requirements for castings according to the technical requirements, acceptance rules, test methods, labelling and packaging must comply with the requirements OCT 1 90021-79. |
