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Characteristics for grade     BrB2   ( БрБ2 )



      Grade :   BrB2   ( БрБ2 ) (   CuBe2Ni(Co)   )
      Classification :   Tin-free pressure-worked bronzes
      Equivalent grades:   Go here



Chemical composition in % for grade   BrB2   ( БрБ2 )
Fe Si NiAl Cu Pb Be Impurity
max   0.15max   0.150.2 - 0.5max   0.1596.9 - 98max   0.0051.8 - 2.1 all 0.5
Comment: Cu is a basis; the percentage of Cu is given approximately.


Mechanical properties under Т=20oС for grade   BrB2   ( БрБ2 )
Assortment Dimension Direct. sв sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Wire, GOST 15834 - 77     343-686  15-60   
Wire, GOST 15834 - 77     735-1372       
Strip, GOST 1789-70     390-590  20-30   
Strip, GOST 1789-70     590-930  2.5    
soft , GOST 1789-70     400-600196-34440-50   
hard , GOST 1789-70   600-950588-9302-4   


    Brinell hardness for     BrB2   ( БрБ2 )   ,     Bar GOST 15835-70 HB 10 -1 = 100 - 150   MPa
    Brinell hardness for     BrB2   ( БрБ2 )   ,     Bar GOST 15835-70 HB 10 -1 = 150   MPa


Technological properties of the material   BrB2   ( БрБ2 ) .
        Melting temperature : 955   °C
        Forging temperature : 750 - 800   °C
        Annealing temperature : 530 - 650   °C


Physical properties for grade   BrB2   ( БрБ2 )
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 1.31   84 8200   70
100   16.6     419  


Equivalent steels for grade     BrB2   ( БрБ2 )
Warning! Indicated both exact and nearest equivalents.
USAGermanyJapan
-DIN,WNrJIS
C17200
2.1447
CuBe2
C1720



Types of delivery of grade   BrB2   ( БрБ2 )
B53 - Sheets and Strips
B55 - Bars
B74 - Wire made of non-ferrous metals and their 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]

  BrB2   ( БрБ2 ) - Tin-free pressure-worked bronzes: 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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