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

σ_U, 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
σ_U	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