Database of Steel and Alloy (Marochnik)

  Home     Steel and Alloy     Search     Equivalent Grades     GOST Standards     Grading     Contacts  
   
YOU HERE:   Steel and Alloy   ->   Latten (copper-zinc alloy)

Characteristics for grade     LА77-2   ( ЛА77-2 )



      Grade :     LА77-2   ( ЛА77-2 )
      Classification :   Copper-zinc alloys pressure treated
      Equivalent grades:     Is absent



Chemical composition in % for grade   LА77-2   ( ЛА77-2 )
Fe PAl Cu PbZn Sb Bi Impurity
max   0.07max   0.011.7 - 2.576 - 79max   0.0718.2 - 22.25max   0.005max   0.002 all 0.3
Comment: Zn is a basis; the percentage of Zn is given approximately.


Mechanical properties under Т=20oС for grade   LА77-2   ( ЛА77-2 )
Assortment Dimension Direct. sв sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Pipe, GOST 21646-2003     320 120 45    
Pipe, GOST 21646-2003     370 150 40    


    Brinell hardness for     LА77-2   ( ЛА77-2 )   ,     soft HB 10 -1 = 45 - 55   MPa
    Brinell hardness for     LА77-2   ( ЛА77-2 )   ,     hard HB 10 -1 = 150 - 160   MPa


Technological properties of the material   LА77-2   ( ЛА77-2 ) .
        Melting temperature : 1000   °C
        Forging temperature : 720 - 770   °C
        Annealing temperature : 600 - 650   °C


Physical properties for grade   LА77-2   ( ЛА77-2 )
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 1.02 18.3 113 8300   75



Types of delivery of grade   LА77-2   ( ЛА77-2 )
B64 - Pipes of non-ferrous metals and alloys


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]

  LА77-2   ( ЛА77-2 ) - 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

    ©   2003 - 2024         Database of Steel and Alloy (russian title is the Marochnik)
Administration of the Marochnik is not responsible for the content's use.
Рейтинг@Mail.ru