Alloy МЛ21
Designation
| Name |
The value |
| Designation GOST Cyrillic |
МЛ21 |
| Designation GOST Latin |
ML21 |
| Transliteration |
ML21 |
| The chemical elements |
CuЛ21 |
Description
Alloy МЛ21 used: for the manufacture of various shaped precise casting parts of aviation methods of sand casting, shell mold, gravity die casting, investment casting and plaster mold.
Standards
| Name |
Code |
Standards |
| Thermal and thermochemical treatment of metals |
В04 |
OST 1 90121-90 |
Technological properties
| Name |
The value |
| Features of heat treatment |
According to OST 1 90121-90 to maximize the mechanical properties of the alloy (σв, σ0,2) mode is applied Kzt61 - Quenching in warm water (80-90 °C) with a 530±5 °C (exposure 8-12 h) + Aging at 200±5 °C (exposure 8-12 hours), air cooling. |
