E⋅109
MPa
α⋅106
K−1
ϰ
Wm⋅K
ρ
kgm3
c⋅10−3
Jkg⋅K
R⋅10−6
Ω⋅m
σU
MPa
ϵL

BrAZh9-4

Gears, bushings, valve seats in the aircraft industry, in mechanical engineering castings massive parts in the ground

Classification

Country	Section	Category
Country	Section	Category
CIS, Russia, Ukraine	Bronze	Pressureless bronze plated

Chemical composition

Standard	Fe, %	Si, %	Sn, %	Mn, %	Cu, %	Zn, %	Al, %	Pb, %	P, %
Standard	Fe, %	Si, %	Sn, %	Mn, %	Cu, %	Zn, %	Al, %	Pb, %	P, %
GOST 18175-78	2–4	< 0.1	< 0.1	< 0.5	84.3–90	< 1	8–10	< 0.01	< 0.01

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Physical characteristics

Temperature, °C	$E\cdot 10^{9}$ , $MPa$	$\alpha\cdot 10^{6}$ , $K^{-1}$	$\varkappa$ , $\frac{W}{m\cdot K}$	$\rho$ , $\frac{kg}{m^3}$	$c\cdot 10^{-3}$ , $\frac{J}{kg\cdot K}$	$R\cdot 10^{-6}$ , $\Omega\cdot m$
Temperature, °C	$E\cdot 10^{9}$ , $MPa$	$\alpha\cdot 10^{6}$ , $K^{-1}$	$\varkappa$ , $\frac{W}{m\cdot K}$	$\rho$ , $\frac{kg}{m^3}$	$c\cdot 10^{-3}$ , $\frac{J}{kg\cdot K}$	$R\cdot 10^{-6}$ , $\Omega\cdot m$
20	116		58	7500		0.12
100		16.2			0.423

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
Round				compacting	540	15
Alloy				soft	400–500	35–45
Alloy				solid	500–700	4–6

Brinell hardness number

Rolling	Standard	Classifiers	Value, HBW
Rolling	Standard	Classifiers	Value, HBW
Round		compacting	110–180
Alloy		soft	100–120
Alloy		solid	160–200

Casting and technological parameters

melting point, °C
melting point, °C
1040

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	0.18

Analogues

USA	Germany
USA	Germany
C61900	CuAl9Fe3Mn2

Standards

Standard	Description
Standard	Description
GOST 18175-78
GOST 1628-78

Description of chemical elements

Element	Units of measurement	Description
Element	Units of measurement	Description
Fe	%	Iron
Si	%	Silicon
Sn	%	Tin
Mn	%	Manganese
Cu	%	Copper
Zn	%	Zinc
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)
$\rho$	$\frac{kg}{m^3}$	The density of the material
$c\cdot 10^{-3}$	$\frac{J}{kg\cdot K}$	The specific heat of the material (range 20°C–T)
$R\cdot 10^{-6}$	$\Omega\cdot m$	Electrical resistivity

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