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Characteristics for grade     BrBNT1.7   ( БрБНТ1.7 )



      Grade :     BrBNT1.7   ( БрБНТ1.7 )
      Classification :   Tin-free pressure-worked bronzes
      Equivalent grades:     Is absent



Chemical composition in % for grade   BrBNT1.7   ( БрБНТ1.7 )
Fe Si Ni TiAl Cu Pb Be Impurity
max   0.15max   0.150.2 - 0.40.1 - 0.25max   0.1597 - 98.1max   0.0051.6 - 1.85 all 0.5
Comment: Cu is a basis; the percentage of Cu is given approximately.


Mechanical properties under Т=20oС for grade   BrBNT1.7   ( БрБНТ1.7 )
Assortment Dimension Direct. sв sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Strip, GOST 1789-70     590-930  2.5    
soft     400-500       
hard , GOST 1789-70     600-900529-830     


    Brinell hardness for     BrBNT1.7   ( БрБНТ1.7 )   ,     soft HB 10 -1 = 80 - 120   MPa
    Brinell hardness for     BrBNT1.7   ( БрБНТ1.7 )   ,     hard HB 10 -1 = 150 - 240   MPa


Technological properties of the material   BrBNT1.7   ( БрБНТ1.7 ) .
        Melting temperature : 865   °C
        Forging temperature : 650 - 700   °C


Physical properties for grade   BrBNT1.7   ( БрБНТ1.7 )
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 1.28   96.6 8200   90
100   17        



Types of delivery of grade   BrBNT1.7   ( БрБНТ1.7 )
B53 - Sheets and Strips


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]

  BrBNT1.7   ( БрБНТ1.7 ) - 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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