Metals -> Magnesium -> Magnesium for casting Characteristics of the material ML4 ( МЛ4 ).
Material : ML4 ( МЛ4 ) Classification : Magnesium for casting
Chemical composition in % of the material ML4 ( МЛ4 ) . Fe Si Mn Ni Al Cu Zr Be Mg Zn Impurity max 0.06 max 0.25 0.15 - 0.5 max 0.01 5 - 7 max 0.1 max 0.002 max 0.002 88.4 - 92.85 2 - 3.5 other 0.1; all 0.5
Comment: Mg is a basis; the percentage of Mg is given approximately. Mechanical properties under Т=20o С of the material ML4 ( МЛ4 ) .
Assortment
Dimension
Direct.
s в
s T
d 5
y
KCU
Heat treatment - mm - MPa MPa % % kJ / m2 - 250-255 85-115 6-9 8-13
Brinell hardness of the material ML4 ( МЛ4 ) , HB 10 -1 = 50 - 75 MPa
Physical properties of the material ML4 ( МЛ4 ) . 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 0.43 79.5 1830 1046.7 100 27.6
Technological properties of the material ML4 ( МЛ4 ) . Solidification temperature, °C : 610 - 400 Casting temperature, °C : 720 - 800 Linear shrinkage, % : 1.2 - 1.4
Specification :
Mechanical properties :
s в - Tensile strength , [MPa]
s T - Yield stress, [MPa]
d 5 - 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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