BrOTsS4-4-4

Tapes and strips used for gaskets and bearings in the hubs of cars and tractors

Classification

Country Section Category
CIS, Russia, Ukraine Bronze Pressure Tin Bronze

Chemical composition

Standard Fe, % Sn, % Bi, % Cu, % Zn, % Ni, % Sb, % Al, % Pb, % P, %
GOST 5017-2006 < 0.05 3–5 < 0.002 85–90.5 3–5 < 0.3 < 0.002 < 0.002 3.5–4.5 < 0.03

Information on suppliers

Physical characteristics

Temperature, °C E\cdot 10^{9}, MPa \alpha\cdot 10^{6}, K^{-1} \rho, \frac{kg}{m^3} R\cdot 10^{-6}, \Omega\cdot m
20 72 9100 0.09
100 18.1

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers \sigma _{U}, MPa \epsilon_L, % Treatment
Alloy soft 320–360 30–40
Alloy solid 500–600 1–2

Brinell hardness number

Rolling Standard Classifiers Value, HBW
Alloy soft 0–0

Casting and technological parameters

melting point, °C
1015

Coefficients of Friction

coefficient of friction with lubrication coefficient of friction without lubrication
0.016 0.26

Analogues

Germany USA
MSnBz4Pb 88Cu-4Pb-4Sn-4Zn

Standards

Standard Description
GOST 5017-2006 Wrought tin bronzes. Grades
GOST 5017-74
DSTU GOST 5017:2007

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Sn % Tin
Bi % Bismuth
Cu % Copper
Zn % Zinc
Ni % Nickel
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
R\cdot 10^{-6} \Omega\cdot m Electrical resistivity

Description of mechanical properties

Parameter Units of measurement Description
\sigma _{U} MPa Ultimate tensile strength
\epsilon_L % Elongation at break (longitudinal)

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