BrO19

for valves and fittings casts of responsible appointment

Classification

Country Section Category
CIS, Russia, Ukraine Bronze Tin cast bronze

Chemical composition

Standard Si, % Sn, % Bi, % Cu, % Zn, % Sb, % Al, % Pb, % P, %
GOST 613-79 < 0.02 18–19.5 < 0.02 79.3–82 < 0.2 < 0.3 < 0.02 < 0.5 < 0.1

Information on suppliers

Physical characteristics

Temperature, °C E\cdot 10^{9}, MPa \alpha\cdot 10^{6}, K^{-1} \rho, \frac{kg}{m^3}
20 96 18.8 8600

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers \sigma _{U}, MPa \sigma_{P}, MPa KCU\cdot 10^{3}, \frac{J}{m^2} Treatment
Casting in chill mold 295 175 41

Brinell hardness number

Rolling Standard Classifiers Value, HBW
Casting in chill mold 157

Casting and technological parameters

melting point, °C
880

Coefficients of Friction

coefficient of friction with lubrication coefficient of friction without lubrication
0.005 0.4

Standards

Standard Description
GOST 613-79
OST 1 90054-72

Description of chemical elements

Element Units of measurement Description
Si % Silicon
Sn % Tin
Bi % Bismuth
Cu % Copper
Zn % Zinc
Sb % Antimony
Al % Aluminium
Pb % Lead
P % Phosphorus

Description of physical characteristics

Parameter Units of measurement Description
E\cdot 10^{9} MPa Elastic modulus
\alpha\cdot 10^{6} K^{-1} Coefficient of thermal (linear) expansion (range 20°C–T)
\rho \frac{kg}{m^3} The density of the material

Description of mechanical properties

Parameter Units of measurement Description
\sigma _{U} MPa Ultimate tensile strength
\sigma_{P} MPa Proportionality limit
KCU\cdot 10^{3} \frac{J}{m^2} Impact toughness

Description of the casting and technological parameters

Parameter Units of measurement Description
melting point °C The temperature at which solid crystalline body makes the transition to the liquid state and Vice versa