BrTsr0.4

The temperature of hot processing semi-finished products 700−900 degrees Celsius.

For collectors of high-loaded and high-speed engines, various parts of radio engineering

Classification

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

Chemical composition

Standard	Fe, %	Cu, %	Zr, %
GOST 614-97	< 0.03	99.4–99.7	0.3–0.5

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Physical characteristics

Temperature, °C	$$E\cdot 10^{9}$$, $$MPa$$	$$\alpha\cdot 10^{6}$$, $$K^{-1}$$	$$\varkappa$$, $$\frac{W}{m\cdot K}$$	$$\rho$$, $$\frac{kg}{m^3}$$	$$R\cdot 10^{-6}$$, $$\Omega\cdot m$$
20	1.34	16.32	343	8930	19.3

Mechanical properties at 20 °C

Rolling	Standard	Size, mm	Tension	Classifiers	$$\sigma _{U}$$, $$MPa$$	$$\sigma_{Y}$$, $$MPa$$	$$\psi$$, %	d5, %	Treatment
Round	GOST 614-97				392	363	69	17

Standards

Standard	Description
GOST 614-97
TU 48-21-222-72

Description of chemical elements

Element	Units of measurement	Description
Fe	%	Iron
Cu	%	Copper
Zr	%	Zirconium

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
$$R\cdot 10^{-6}$$	$$\Omega\cdot m$$	Electrical resistivity

Description of mechanical properties

Parameter	Units of measurement	Description
d5	%	Elongation at break
$$\sigma_{Y}$$	$$MPa$$	Yield strength
$$\sigma _{U}$$	$$MPa$$	Ultimate tensile strength
$$\psi$$	%	Reduction in cross section on fracture