BrO5S25 (BrOS5-25)

sliding Bimetallic bearings

Classification

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

Chemical composition

Standard	Fe, %	Si, %	Sn, %	Cu, %	Zn, %	Sb, %	Al, %	Pb, %	P, %
Standard	Fe, %	Si, %	Sn, %	Cu, %	Zn, %	Sb, %	Al, %	Pb, %	P, %
GOST 613-79	< 0.2	< 0.02	4–6	66.8–73	< 0.5	< 0.5	< 0.02	23–26	< 0.05

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Physical characteristics

Temperature, °C	$E\cdot 10^{9}$ , $MPa$	$\alpha\cdot 10^{6}$ , $K^{-1}$	$\varkappa$ , $\frac{W}{m\cdot K}$
Temperature, °C	$E\cdot 10^{9}$ , $MPa$	$\alpha\cdot 10^{6}$ , $K^{-1}$	$\varkappa$ , $\frac{W}{m\cdot K}$
20	68.6	17.6	58.6

Mechanical properties at 20 °C

Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\epsilon_L$ , %	Treatment
Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\epsilon_L$ , %	Treatment
Casting	GOST 613-79			in chill mold	137	6	Without termoobrabot.
Casting	GOST 613-79			in sandy form	147	5	Without termoobrabot.

Brinell hardness number

Rolling	Standard	Classifiers	Value, HBW
Rolling	Standard	Classifiers	Value, HBW
Casting	GOST 613-79	in chill mold	60
Casting	GOST 613-79	in sandy form	45

Casting and technological parameters

melting point, °C	linear shrinkage, %	the temperature of the casting, °C
melting point, °C	linear shrinkage, %	the temperature of the casting, °C
940	1.5	1150

Coefficients of Friction

coefficient of friction with lubrication	coefficient of friction without lubrication
coefficient of friction with lubrication	coefficient of friction without lubrication
0.004	0.14

Analogues

USA
USA
C94300

Standards

Standard	Description
Standard	Description
GOST 613-79

Description of chemical elements

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

Description of physical characteristics

Parameter	Units of measurement	Description
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)
$\varkappa$	$\frac{W}{m\cdot K}$	Coefficient of thermal conductivity (the heat capacity of the material)

Description of mechanical properties

Parameter	Units of measurement	Description
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
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
linear shrinkage	%	The difference between model dimensions and the model casting
the temperature of the casting	°C	The temperature of the molten polymer is extruded from the heating cylinder into the mold