LS63-3

For the manufacture of tapes, bands, rods, wire; parts for watches; bushings. Mark LS63−3A manufactured with non-magnetic properties in accordance with the requirements of GOST 15527

Classification

Country Section Category
CIS, Russia, Ukraine Brass (copper-zinc alloy) Brass, pressure treated

Chemical composition

Standard Fe, % Sn, % Bi, % Cu, % Zn, % Sb, % Pb, % P, %
GOST 15527-2004 < 0.1 < 0.1 < 0.002 62–65 31.65–35.6 < 0.005 2.4–3 < 0.01

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Physical characteristics

Temperature, °C $$E\cdot 10^{9}$$, $$MPa$$ $$\alpha\cdot 10^{6}$$, $$K^{-1}$$ $$\varkappa$$, $$\frac{W}{m\cdot K}$$ $$\rho$$, $$\frac{kg}{m^3}$$ $$c\cdot 10^{-3}$$, $$\frac{J}{kg\cdot K}$$ $$R\cdot 10^{-6}$$, $$\Omega\cdot m$$
20 98 117 8500 0.069
100 20.5 0.3768

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\epsilon_L$$, % Treatment
Round half-firm, solid 350 12
Round solid 490–590
Tape soft 295 40
Tape solid 440–550

Brinell hardness number

Rolling Standard Classifiers Value, HBW
Round solid 1300–1550
Round half-firm, solid 0–0
Alloy soft 450–550

Casting and technological parameters

melting point, °C annealing temperature, °C
905 600–650
LS63-3 / Aloro

Standards

Standard Description
GOST 15527-2004
GOST 15527-70
GOST 2060-2006 GOST
GOST 2060-90
GOST 31366-08
GOST 4442-14
GOST Р 52597-06
DSTU GOST 15527:2005

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Sn % Tin
Bi % Bismuth
Cu % Copper
Zn % Zinc
Sb % Antimony
Pb % Lead
P % Phosphorus

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
melting point °C The temperature at which solid crystalline body makes the transition to the liquid state and Vice versa
annealing temperature °C The temperature at which the processes return recrystallization and homogenization of the metal to reduce its hardness for subsequent machining