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 |
| CIS, Russia, Ukraine |
Bronze |
Bronze, heatproof |
Chemical composition
| 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 |
Information on suppliers
Physical characteristics
| 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 |
|---|
| Round |
GOST 614-97 |
|
|
|
850 |
840 |
10 |
|
Brinell hardness number
| Rolling |
Standard |
Classifiers |
Value, HBW |
| Alloy deformirovanii |
|
|
150 |
| Alloy annealed |
|
|
80 |
Casting and technological parameters
| Hot working temperature, °C |
annealing temperature, °C |
|---|
| 800–950 |
750 |
Standards
Description of chemical elements
| 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 |
| $$\varkappa$$ |
$$\frac{W}{m\cdot K}$$ |
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 |
| $$\sigma_{Y}$$ |
$$MPa$$ |
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 |
| 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 |