PMTS48

For brazing copper alloy containing copper more than 68%

Classification

Country	Section	Category
Country	Section	Category
CIS, Russia, Ukraine	Copper, copper alloys	Copper Alloys

Chemical composition

Standard	Fe, %	Cu, %	Zn, %	Pb, %
Standard	Fe, %	Cu, %	Zn, %	Pb, %
GOST 23137 - 78	< 0.1	46–50	49.4–54	< 0.5

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Physical characteristics

Temperature, °C	$\alpha\cdot 10^{6}$ , $K^{-1}$	$\rho$ , $\frac{kg}{m^3}$
Temperature, °C	$\alpha\cdot 10^{6}$ , $K^{-1}$	$\rho$ , $\frac{kg}{m^3}$
20	21	8200

Mechanical properties at 20 °C

Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	d5, %	Treatment
Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	d5, %	Treatment
Alloy	GOST 23137 - 78				206	3

Brinell hardness number

Rolling	Standard	Classifiers	Value, HBW
Rolling	Standard	Classifiers	Value, HBW
Alloy	GOST 23137 - 78		130

Casting and technological parameters

melting point, solidus, °C	melting point, liquidus, °C
melting point, solidus, °C	melting point, liquidus, °C
850	865

Standards

Standard	Description
Standard	Description
GOST 23137 - 78

Description of chemical elements

Element	Units of measurement	Description
Element	Units of measurement	Description
Fe	%	Iron
Cu	%	Copper
Zn	%	Zinc
Pb	%	Lead

Description of physical characteristics

Parameter	Units of measurement	Description
Parameter	Units of measurement	Description
$\alpha\cdot 10^{6}$	$K^{-1}$	Coefficient of thermal (linear) expansion (range 20°C–T)
$\rho$	$\frac{kg}{m^3}$	The density of the material

Description of mechanical properties

Parameter	Units of measurement	Description
Parameter	Units of measurement	Description
d5	%	Elongation at break
$\sigma _{U}$	$MPa$	Ultimate tensile strength

Description of the casting and technological parameters

Parameter	Units of measurement	Description
Parameter	Units of measurement	Description
melting point, solidus	°C	The temperature at which melts the low melting component
melting point, liquidus	°C	The temperature at which equilibrium falls first crystal