ρ
kgm3
R⋅10−6
Ω⋅m
σU
MPa
ϵL
KCU⋅103
Jm2

POS90

Tinning and soldering of the joints eating utensils and medical equipment; bessurmyanisty alloy

Classification

Country Section Category
CIS, Russia, Ukraine Tin, lead, babity Tin-lead solder

Chemical composition

Standard Fe, % Sn, % Bi, % Cu, % Zn, % Ni, % Sb, % Al, % Pb, % As, % S, %
GOST 21930-76 < 0.02 89–91 < 0.1 < 0.05 < 0.002 < 0.02 < 0.05 < 0.002 8.826–11 < 0.01 < 0.02

Information on suppliers

Physical characteristics

Temperature, °C \rhoρ, \frac{kg}{m^3}kgm3 R\cdot 10^{-6}R⋅10−6, \Omega\cdot mΩ⋅m
20 7600 0.12

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers \sigma _{U}σU, MPaMPa \epsilon_LϵL, % KCU\cdot 10^{3}KCU⋅103, \frac{J}{m^2}Jm2 Treatment
Alloy GOST 21930-76 49 40 420

Brinell hardness number

Rolling Standard Classifiers Value, HBW
Alloy GOST 21930-76 15.4

Casting and technological parameters

melting point, solidus, °C melting point, liquidus, °C
183 220

Standards

Standard Description
GOST 21930-76

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Sn % Tin
Bi % Bismuth
Cu % Copper
Zn % Zinc
Ni % Nickel
Sb % Antimony
Al % Aluminium
Pb % Lead
As % Arsenic
S % Sulfur

Description of physical characteristics

Parameter Units of measurement Description
\rhoρ \frac{kg}{m^3}kgm3 The density of the material
R\cdot 10^{-6}R⋅10−6 \Omega\cdot mΩ⋅m Electrical resistivity

Description of mechanical properties

Parameter Units of measurement Description
\sigma _{U}σU MPaMPa Ultimate tensile strength
\epsilon_LϵL % Elongation at break (longitudinal)
KCU\cdot 10^{3}KCU⋅103 \frac{J}{m^2}Jm2 Impact toughness

Description of the casting and technological parameters

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