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Grade : | MА8 ( МА8 ) |
Classification : | Wrought magnesium |
Equivalent grades: | Is absent |
Fe | Si | Mn | Ni | Ce | Al | Cu | Be | Mg | Zn | Impurity |
max 0.05 | max 0.1 | 1.3 - 2.2 | max 0.007 | 0.15 - 0.35 | max 0.1 | max 0.05 | max 0.002 | 96.84 - 98.55 | max 0.3 | all 0.3 |
Assortment | Dimension | Direct. | sв | sT | d5 | y | KCU | Heat treatment |
- | mm | - | MPa | MPa | % | % | kJ / m2 | - |
Sheet annealed , GOST 22635-77 | 220-230 | 110-120 | 10-12 | |||||
Sheet, GOST 22635-77 | 220-230 | 140-150 | 6-8 | |||||
Pipe, GOST 19441-74 | 230 | 8 | ||||||
Bar, GOST 18351-73 | 175-215 | 1-4 |
Brinell hardness for MА8 ( МА8 ) , | HB 10 -1 = 40 MPa |
Linear shrinkage : | 5.4 % |
T | E 10- 5 | a 10 6 | l | r | C | R 10 9 |
Grade | MPa | 1/Grade | Watt/(m·Grade) | kg/m3 | J/(kg·Grade) | Ohm·m |
20 | 0.42 | 133.9 | 1780 | 51 | ||
100 | 23.7 | 1046.7 |
B51 - Non-ferrous metals, including rare metals, and their alloys |
B52 - Graded and shaped rolling |
B53 - Sheets and Strips |
B55 - Bars |
B64 - Pipes of non-ferrous metals and alloys |
Mechanical properties : | |
sв | - Tensile strength , [MPa] |
sT | - Yield stress, [MPa] |
d5 | - Specific elongation at fracture , [ % ] |
y | - Reduction of area , [ % ] |
KCU | - Impact strength , [ kJ / m2] |
HB | - Brinell hardness , [MPa] |
Physical properties : | |
T | - Test temperature , [Grade] |
E | - Young modulus , [MPa] |
a | - Coefficient of linear expansion (range 20o - T ) , [1/Grade] |
l | - Termal (heat) condition coefficient , [Watt/(m·Grade)] |
r | - Density , [kg/m3] |
C | - Specific heat ( range 20o - T ), [J/(kg·Grade)] |
R | - Electrical resistance , [Ohm·m] |
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