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Characteristics for grade     LK80-3   ( ЛК80-3 )



      Grade :     LK80-3   ( ЛК80-3 )
      Classification :   Copper-zinc alloys pressure treated
      Equivalent grades:     Is absent



Chemical composition in % for grade   LK80-3   ( ЛК80-3 )
Fe Si Mn PAl Cu PbZn Sb Bi Sn Impurity
max   0.62.5 - 4max   0.5max   0.02max   0.179 - 81max   0.113.5 - 18.5max   0.05max   0.003max   0.2 all 1.5
Comment: Zn is a basis; the percentage of Zn is given approximately.


Mechanical properties under Т=20oС for grade   LK80-3   ( ЛК80-3 )
Assortment Dimension Direct. sв sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
soft     280-340  53-60   
hard     580-650  3-5   


    Brinell hardness for     LK80-3   ( ЛК80-3 )   ,     soft HB 10 -1 = 95 - 105   MPa
    Brinell hardness for     LK80-3   ( ЛК80-3 )   ,     hard HB 10 -1 = 170 - 190   MPa


Friction coefficient of the material   LK80-3   ( ЛК80-3 ) .
 Friction coefficient with oil : 0.084
 Friction coefficient without oil : 0.22


Technological properties of the material   LK80-3   ( ЛК80-3 ) .
        Melting temperature : 890   °C
        Annealing temperature : 750 - 850   °C


Physical properties for grade   LK80-3   ( ЛК80-3 )
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 1.04   87.9 8200   200
100   17     401.9  




Specification :
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]

  LK80-3   ( ЛК80-3 ) - Copper-zinc alloys pressure treated: chemical composition, mechanical and physical properties, hardness
Database of steels and alloys (Marochnik) contains information about chemical composition and properties more then 3000 steels and alloys

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