MA21
srednenagruzhennyh for components operating at temperatures up to 100−125 ° C and cryogenic temperatures where high stiffness and increased compressive strength
Classification
| Country |
Section |
Category |
| CIS, Russia, Ukraine |
Magnesium |
Wrought Magnesium Alloys |
Chemical composition
| Standard |
Fe, % |
Si, % |
Mg, % |
Mn, % |
Cu, % |
Zn, % |
Ni, % |
Al, % |
Na, % |
Li, % |
Cd, % |
Ce, % |
|---|
| GOST 14957-76 |
< 0.03 |
< 0.1 |
76.5–85.1 |
< 0.1 |
< 0.04 |
1–2 |
< 0.005 |
4.3–5.3 |
< 0.005 |
7.5–9 |
4–5 |
< 0.15 |
Information on suppliers
Physical characteristics
| Temperature, °C |
$$E\cdot 10^{9}$$, $$MPa$$ |
$$\rho$$, $$\frac{kg}{m^3}$$ |
|---|
| 20 |
46 |
1600 |
Mechanical properties at 20 °C
| Rolling |
Standard |
Size, mm |
Tension |
Classifiers |
$$\sigma _{U}$$, $$MPa$$ |
$$\sigma_{P}$$, $$MPa$$ |
$$\epsilon_L$$, % |
$$\psi$$, % |
$$KCU\cdot 10^{3}$$, $$\frac{J}{m^2}$$ |
Treatment |
|---|
|
|
|
|
|
240 |
190 |
18.5 |
26 |
70 |
|
Brinell hardness number
| Rolling |
Standard |
Classifiers |
Value, HBW |
|
|
|
0–0 |
Standards
Description of chemical elements
| Element |
Units of measurement |
Description |
| Fe |
% |
Iron |
| Si |
% |
Silicon |
| Mg |
% |
Magnesium |
| Mn |
% |
Manganese |
| Cu |
% |
Copper |
| Zn |
% |
Zinc |
| Ni |
% |
Nickel |
| Al |
% |
Aluminium |
| Na |
% |
Sodium |
| Li |
% |
Li |
| Cd |
% |
Cadmium |
| Ce |
% |
Cerium |
Description of physical characteristics
| Parameter |
Units of measurement |
Description |
| $$E\cdot 10^{9}$$ |
$$MPa$$ |
Elastic modulus |
| $$\rho$$ |
$$\frac{kg}{m^3}$$ |
The density of the material |
Description of mechanical properties
| Parameter |
Units of measurement |
Description |
| $$\sigma _{U}$$ |
$$MPa$$ |
Ultimate tensile strength |
| $$\sigma_{P}$$ |
$$MPa$$ |
Proportionality limit |
| $$\epsilon_L$$ |
% |
Elongation at break (longitudinal) |
| $$\psi$$ |
% |
Reduction in cross section on fracture |
| $$KCU\cdot 10^{3}$$ |
$$\frac{J}{m^2}$$ |
Impact toughness |