BrNBT

Temperature hot processing 800−950 degrees Celsius.

For butt-welding machine parts, electrodes for welding stainless steel and high-temperature alloys

Classification

Country	Section	Category
Country	Section	Category
CIS, Russia, Ukraine	Bronze	Bronze, heatproof

Chemical composition

Standard	Be, %	Sn, %	Ti, %	Cu, %	Zn, %	Ni, %	Al, %	Pb, %
Standard	Be, %	Sn, %	Ti, %	Cu, %	Zn, %	Ni, %	Al, %	Pb, %
GOST 614-97	0.2–0.4	< 0.1	0.05–0.15	97.15–98.35	< 0.2	1.4–1.6	< 0.15	< 0.005

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Physical characteristics

Temperature, °C	$\varkappa$ , $\frac{W}{m\cdot K}$	$\rho$ , $\frac{kg}{m^3}$	$R\cdot 10^{-6}$ , $\Omega\cdot m$
Temperature, °C	$\varkappa$ , $\frac{W}{m\cdot K}$	$\rho$ , $\frac{kg}{m^3}$	$R\cdot 10^{-6}$ , $\Omega\cdot m$
20	188	8830	39.2

Mechanical properties at 20 °C

Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{Y}$ , $MPa$	$\psi$ , %	Treatment
Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{Y}$ , $MPa$	$\psi$ , %	Treatment
Round	GOST 614-97				850	840	10

Brinell hardness number

Rolling	Standard	Classifiers	Value, HBW
Rolling	Standard	Classifiers	Value, HBW
Alloy deformirovanii			150
Alloy annealed			80

Casting and technological parameters

Hot working temperature, °C	annealing temperature, °C
Hot working temperature, °C	annealing temperature, °C
800–950	750

Standards

Standard	Description
Standard	Description
GOST 614-97
TU 48-21-92-89

Description of chemical elements

Element	Units of measurement	Description
Element	Units of measurement	Description
Be	%	Beryllium
Sn	%	Tin
Ti	%	Titan
Cu	%	Copper
Zn	%	Zinc
Ni	%	Nickel
Al	%	Aluminium
Pb	%	Lead

Description of physical characteristics

Parameter	Units of measurement	Description
Parameter	Units of measurement	Description
$\varkappa$	$\frac{W}{m\cdot K}$	Coefficient of thermal conductivity (the heat capacity of the material)
$\rho$	$\frac{kg}{m^3}$	The density of the material
$R\cdot 10^{-6}$	$\Omega\cdot m$	Electrical resistivity

Description of mechanical properties

Parameter	Units of measurement	Description
Parameter	Units of measurement	Description
$\sigma_{Y}$	$MPa$	Yield strength
$\sigma _{U}$	$MPa$	Ultimate tensile strength
$\psi$	%	Reduction in cross section on fracture

Description of the casting and technological parameters

Parameter	Units of measurement	Description
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