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Solder POSK50-18

Designation

Name The value
Designation GOST Cyrillic ПОСК50-18
Designation GOST Latin POCK50-18
Transliteration POSK50-18
The chemical elements ПSnPbCo50-18

Description

Solder POSK50−18 is used: for the production of ingots, round wire, round rods filled with flux tubes, powder used for brazing of parts sensitive to overheating, metalized ceramics, for step soldering capacitors.

Note

Solder tin-lead-cadmium antimony free.

Standards

Name Code Standards
Non-ferrous metals, including rare metals, and their alloys В51 GOST 21930-76, GOST 21931-76, GOST 28873-90
Norms of calculation and design В02 OST 107.460091.001-86

Chemical composition

Standard S Ni Fe Cu As Al Zn Sn Sb Pb Bi Cd
GOST 21930-76 ≤0.02 ≤0.02 ≤0.02 ≤0.08 ≤0.03 ≤0.002 ≤0.002 49-51 ≤0.2 The rest ≤0.1 17-19
Sn is the basis.

Mechanical characteristics

σB, MPa d Brinell hardness number, MPa HRC
Pig in the state of delivery
≥39.2 ≥40 ≥480.2 ≥14

Description mechanical marks

Name Description
σB Limit short-term strength
d Elongation after rupture
HRC Rockwell hardness (indenter diamond spheroconical)

Physical characteristics

Temperature r, кг/м3 l, Вт/(м · °С) R, НОм · м
20 8800 5443 133

A description of the physical symbols

Name Description
l Coefficient of thermal conductivity
С Specific heat

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