Solder Possu40-2

Designation

Name The value
Designation GOST Cyrillic ПОССу40-2
Designation GOST Latin POCCu40-2
Transliteration POSSu40-2
By chemical elements ПSnPbSb40-2

Description

Solder Possu40−2 applies: for the production of ingots, round wire, round rods filled with flux tubes, powder used for tinning and soldering of refrigerating equipment, sheet packing; soldering brass, iron, and copper wire; for low temperature (soft) capillary soldering of fittings from copper and copper alloys are designed for connection to copper pipes (according to GOST R 52318) used in drinking water systems, hot and cold water, water (steam) heating, cooling, sewage, water treatment plants and gas supply.

Note

Solder tin-lead-antimony wide application.

Standards

Name Code Standards
Non-ferrous metals, including rare, and their alloys В51 GOST 21930-76, GOST 21931-76, GOST 28873-90, GOST Р 52955-2008, STP М288-82

Chemical composition

Standard S Ni Fe Cu As Al Zn Sn Sb Pb Bi
GOST 21930-76 ≤0.02 ≤0.08 ≤0.02 ≤0.08 ≤0.02 ≤0.002 ≤0.002 39-41 1.5-2 Rest ≤0.2
GOST Р 52955-2008 ≤0.02 ≤0.08 ≤0.02 ≤0.1 ≤0.05 - ≤0.002 39-41 1.5-2 Rest ≤0.2
Pb is the basis.
According to GOST 21930-76 in the solder used in the automotive industry, the mass fraction of copper is allowed up to 0.10% and arsenic is allowed up to 0.050%.

Mechanical properties

σU, MPa d KCU, kJ/m2 HB, MPa
Pig in the state of delivery
≥42.2 ≥48 ≥274.4 ≥14.2

Description mechanical marks

Name Description
σU Limit short-term strength
d Elongation after rupture
KCU Toughness
HB Brinell hardness number

Physical characteristics

Temperature r, kg/m3 l, W/(m · °C) R, Mr. · m
20 9200 4189 172

A description of the physical symbols

Name Description
l Coefficient of thermal conductivity
С Specific heat