Database of Steel and Alloy (Marochnik) |
Home | Steel and Alloy | Search | Equivalent Grades | GOST Standards | Grading | Contacts |
Grade : | АL7 ( АЛ7 ) |
Classification : | Aluminium casting alloys |
Equivalent grades: | Go here |
Fe | Si | Mn | Ti | Al | Cu | Zr | Pb | Mg | Zn | Sn | Impurity |
max 1 | max 1.2 | max 0.1 | max 0.2 | 92.9 - 96 | 4 - 5 | max 0.1 | max 0.01 | max 0.03 | max 0.2 | max 0.01 | all 2.1 |
Assortment | Dimension | Direct. | sв | sT | d5 | y | KCU | Heat treatment |
- | mm | - | MPa | MPa | % | % | kJ / m2 | - |
200-230 | 3-6 | |||||||
sand (mould) casting | 260 | 200 | 3 | Hardening and ageing |
Brinell hardness for АL7 ( АЛ7 ) , | HB 10 -1 = 60 - 70 MPa |
Brinell hardness for АL7 ( АЛ7 ) (quenching, ageing) , sand (mould) casting | HB 10 -1 = 85 MPa |
Linear shrinkage : | 1.4 % |
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 | 138.6 | 2800 | ||||
100 | 23 |
USA | Germany | Japan | China | Inter | ||||||
- | DIN,WNr | JIS | GB | ISO | ||||||
|
|
|
|
|
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] |
© 2003 - 2024 Database of Steel and Alloy (russian title is the Marochnik)
Administration of the Marochnik is not responsible for the content's use. |