BrKMts3-1

Details of chemical devices, springs and spring-loaded parts, parts for shipbuilding, as well as welded structures; wire for manual welding in protective gases non-rigid structures made of copper and copper welding automatic submerged arc

Classification

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

Chemical composition

Standard Fe, % Si, % Sn, % Mn, % Cu, % Zn, % Ni, % Pb, %
GOST 18175-78 < 0.3 2.7–3.5 < 0.25 1–1.5 94–96.3 < 0.5 < 0.2 < 0.03

Information on suppliers

Physical characteristics

Temperature, °C $$E\cdot 10^{9}$$, $$MPa$$ $$\alpha\cdot 10^{6}$$, $$K^{-1}$$ $$\varkappa$$, $$\frac{W}{m\cdot K}$$ $$\rho$$, $$\frac{kg}{m^3}$$ $$c\cdot 10^{-3}$$, $$\frac{J}{kg\cdot K}$$ $$R\cdot 10^{-6}$$, $$\Omega\cdot m$$
20 115 46 8470 0.15
100 18 0.377

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\epsilon_L$$, % Treatment
Round solid 490 10–15
Round compacting 340 20
Wire solid 760–880
Tape soft 350 28–35
Tape solid 590–760 2–5

Brinell hardness number

Rolling Standard Classifiers Value, HBW
Round compacting 65
Round solid 150
Alloy soft 70–90

Casting and technological parameters

Hot working temperature, °C annealing temperature, °C
750–850 700–750

Coefficients of Friction

coefficient of friction with lubrication coefficient of friction without lubrication
0.013 0.4

Analogues

USA Germany
C65500 CuSiMn

Standards

Standard Description
GOST 18175-78
GOST 1628-78
GOST 5222-2016
GOST Р 54150-2010

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
Sn % Tin
Mn % Manganese
Cu % Copper
Zn % Zinc
Ni % Nickel
Pb % Lead

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)
$$\varkappa$$ $$\frac{W}{m\cdot K}$$ 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
$$\sigma _{U}$$ $$MPa$$ Ultimate tensile strength
$$\epsilon_L$$ % Elongation at break (longitudinal)

Description of the casting and technological parameters

Parameter Units of measurement Description
Hot working temperature °C The temperature at which the plastic-deformed metal recrystallizes during the pressure treatment
annealing temperature °C The temperature at which the processes return recrystallization and homogenization of the metal to reduce its hardness for subsequent machining