LO90-1

For the manufacture of rolled strip, wire and tape; for condenser tubes, heat engineering equipment

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 0.2–0.7 < 0.002 88–91 8–11.7 < 0.005 < 0.03 < 0.01

Information on suppliers

Physical characteristics

Temperature, °C $$E\cdot 10^{9}$$, $$MPa$$ $$\alpha\cdot 10^{6}$$, $$K^{-1}$$ $$\varkappa$$, $$\frac{W}{m\cdot K}$$ $$\rho$$, $$\frac{kg}{m^3}$$ $$R\cdot 10^{-6}$$, $$\Omega\cdot m$$
20 105 125.6 8750 0.054
100 18.4

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\epsilon_L$$, % Treatment
Sheet solid 390 2
Sheet soft 260–370 35

Brinell hardness number

Rolling Standard Classifiers Value, HBW
Sheet soft 0–0
Sheet solid 0–0

Casting and technological parameters

melting point, °C Hot working temperature, °C annealing temperature, °C
1015 700–800 550–650

Coefficients of Friction

coefficient of friction with lubrication coefficient of friction without lubrication
0.013 0.45

Analogues

USA
B 508 (C41100)

Standards

Standard Description
GOST 15527-2004
GOST 15527-70
GOST 2208-07
DSTU GOST 15527:2005
DSTU GOST 2208:2008

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