By visiting this site, you accept the use of cookies. More about our cookie policy.

GOST 31921-2012

GOST 33729-2016 GOST 20996.3-2016 GOST 31921-2012 GOST 33730-2016 GOST 12342-2015 GOST 19738-2015 GOST 28595-2015 GOST 28058-2015 GOST 20996.11-2015 GOST 9816.5-2014 GOST 20996.12-2014 GOST 20996.7-2014 GOST P 56306-2014 GOST P 56308-2014 GOST 20996.1-2014 GOST 20996.2-2014 GOST 20996.0-2014 GOST 16273.1-2014 GOST 9816.0-2014 GOST 9816.4-2014 GOST P 56142-2014 STATE STANDARD P 54493-2011 GOST 13498-2010 STATE STANDARD P 54335-2011 GOST 13462-2010 STATE STANDARD P 54313-2011 GOST P 53372-2009 GOST P 53197-2008 GOST P 53196-2008 GOST P 52955-2008 GOST P 50429.9-92 GOST 6836-2002 GOST 6835-2002 GOST 18337-95 GOST 13637.9-93 GOST 13637.8-93 GOST 13637.7-93 GOST 13637.6-93 GOST 13637.5-93 GOST 13637.4-93 GOST 13637.3-93 GOST 13637.2-93 GOST 13637.1-93 GOST 13637.0-93 STATE STANDARD 13099-2006 GOST 13098-2006 GOST 10297-94 GOST 12562.1-82 GOST 12564.2-83 GOST 16321.2-70 GOST 4658-73 GOST 12227.1-76 GOST 16274.0-77 GOST 16274.1-77 GOST 22519.5-77 GOST 22720.4-77 GOST 22519.4-77 GOST 22720.2-77 GOST 22519.6-77 GOST 13462-79 GOST 23862.24-79 GOST 23862.35-79 GOST 23862.15-79 GOST 23862.29-79 GOST 24392-80 GOST 20997.5-81 GOST 24977.1-81 GOST 25278.8-82 GOST 20996.11-82 GOST 25278.5-82 GOST 1367.7-83 GOST 26239.9-84 GOST 26473.1-85 GOST 16273.1-85 GOST 26473.2-85 GOST 26473.6-85 GOST 25278.15-87 GOST 12223.1-76 GOST 12645.7-77 GOST 12645.1-77 GOST 12645.6-77 GOST 22720.3-77 GOST 12645.4-77 GOST 22519.7-77 GOST 22519.2-77 GOST 22519.0-77 GOST 12645.5-77 GOST 22517-77 GOST 12645.2-77 GOST 16274.9-77 GOST 16274.5-77 GOST 22720.0-77 GOST 22519.3-77 GOST 12560.1-78 GOST 12558.1-78 GOST 12561.2-78 GOST 12228.2-78 GOST 18385.4-79 GOST 23862.30-79 GOST 18385.3-79 GOST 23862.6-79 GOST 23862.0-79 GOST 23685-79 GOST 23862.31-79 GOST 23862.18-79 GOST 23862.7-79 GOST 23862.1-79 GOST 23862.20-79 GOST 23862.26-79 GOST 23862.23-79 GOST 23862.33-79 GOST 23862.10-79 GOST 23862.8-79 GOST 23862.2-79 GOST 23862.9-79 GOST 23862.12-79 GOST 23862.13-79 GOST 23862.14-79 GOST 12225-80 GOST 16099-80 GOST 16153-80 GOST 20997.2-81 GOST 20997.3-81 GOST 24977.2-81 GOST 24977.3-81 GOST 20996.4-82 GOST 14338.2-82 GOST 25278.10-82 GOST 20996.7-82 GOST 25278.4-82 GOST 12556.1-82 GOST 14339.1-82 GOST 25278.9-82 GOST 25278.1-82 GOST 20996.9-82 GOST 12554.1-83 GOST 1367.4-83 GOST 12555.1-83 GOST 1367.6-83 GOST 1367.3-83 GOST 1367.9-83 GOST 1367.10-83 GOST 12554.2-83 GOST 26239.4-84 GOST 9816.2-84 GOST 26473.9-85 GOST 26473.0-85 GOST 12645.11-86 GOST 12645.12-86 GOST 8775.3-87 GOST 27973.0-88 GOST 18904.8-89 GOST 18904.6-89 GOST 18385.0-89 GOST 14339.5-91 GOST 14339.3-91 GOST 29103-91 GOST 16321.1-70 GOST 16883.2-71 GOST 16882.1-71 GOST 12223.0-76 GOST 12552.2-77 GOST 12645.3-77 GOST 16274.2-77 GOST 16274.10-77 GOST 12552.1-77 GOST 22720.1-77 GOST 16274.4-77 GOST 16274.7-77 GOST 12228.1-78 GOST 12561.1-78 GOST 12558.2-78 GOST 12224.1-78 GOST 23862.22-79 GOST 23862.21-79 GOST 23687.2-79 GOST 23862.25-79 GOST 23862.19-79 GOST 23862.4-79 GOST 18385.1-79 GOST 23687.1-79 GOST 23862.34-79 GOST 23862.17-79 GOST 23862.27-79 GOST 17614-80 GOST 12340-81 GOST 31291-2005 GOST 20997.1-81 GOST 20997.4-81 GOST 20996.2-82 GOST 12551.2-82 GOST 12559.1-82 GOST 1089-82 GOST 12550.1-82 GOST 20996.5-82 GOST 20996.3-82 GOST 12550.2-82 GOST 20996.8-82 GOST 14338.4-82 GOST 25278.12-82 GOST 25278.11-82 GOST 12551.1-82 GOST 25278.3-82 GOST 20996.6-82 GOST 25278.6-82 GOST 14338.1-82 GOST 14339.4-82 GOST 20996.10-82 GOST 20996.1-82 GOST 12645.9-83 GOST 12563.2-83 GOST 19709.1-83 GOST 1367.11-83 GOST 1367.0-83 GOST 19709.2-83 GOST 12645.0-83 GOST 12555.2-83 GOST 1367.1-83 GOST 9816.3-84 GOST 9816.4-84 GOST 9816.1-84 GOST 9816.0-84 GOST 26468-85 GOST 26473.11-85 GOST 26473.12-85 GOST 26473.5-85 GOST 26473.7-85 GOST 16273.0-85 GOST 26473.3-85 GOST 26473.8-85 GOST 26473.13-85 GOST 25278.13-87 GOST 25278.14-87 GOST 8775.1-87 GOST 25278.17-87 GOST 18904.1-89 GOST 18904.0-89 STATE STANDARD P 51572-2000 GOST 14316-91 GOST P 51704-2001 GOST 16883.1-71 GOST 16882.2-71 GOST 16883.3-71 GOST 8774-75 GOST 12227.0-76 GOST 12797-77 GOST 16274.3-77 GOST 12553.1-77 GOST 12553.2-77 GOST 16274.6-77 GOST 22519.1-77 GOST 16274.8-77 GOST 12560.2-78 GOST 23862.11-79 GOST 23862.36-79 GOST 23862.3-79 GOST 23862.5-79 GOST 18385.2-79 GOST 23862.28-79 GOST 16100-79 GOST 23862.16-79 GOST 23862.32-79 GOST 20997.0-81 GOST 14339.2-82 GOST 12562.2-82 GOST 25278.7-82 GOST 20996.12-82 GOST 12645.8-82 GOST 20996.0-82 GOST 12556.2-82 GOST 25278.2-82 GOST 12564.1-83 GOST 1367.5-83 GOST 25948-83 GOST 1367.8-83 GOST 1367.2-83 GOST 12563.1-83 GOST 9816.5-84 GOST 26473.4-85 GOST 26473.10-85 GOST 12645.10-86 GOST 8775.2-87 GOST 25278.16-87 GOST 8775.0-87 GOST 8775.4-87 GOST 12645.13-87 GOST 27973.3-88 GOST 27973.1-88 GOST 27973.2-88 GOST 18385.6-89 GOST 18385.7-89 GOST 28058-89 GOST 18385.5-89 GOST 10928-90 GOST 14338.3-91 GOST 10298-79 GOST P 51784-2001 GOST 15527-2004 GOST 28595-90 GOST 28353.1-89 GOST 28353.0-89 GOST 28353.2-89 GOST 28353.3-89 STATE STANDARD P 52599-2006

GOST 31921−2012 Solders for capillary soldering of fittings from copper and copper alloys for connecting of pipelines. Brand


GOST 31921−2012



INTERSTATE STANDARD

SOLDERS FOR CAPILLARY SOLDERING OF FITTINGS FROM COPPER AND COPPER ALLOYS FOR CONNECTING THE PIPELINES

Brand

Solders for capillary soldering of fittings of copper and copper alloys for connecting the pipelines systems. Grades


ISS 77.120.60
77.120.99
GST 2300 17

Date of introduction 2014−01−01



Preface


Goals, basic principles and procedure of works on interstate standardization have been established in GOST 1.0−92 «interstate standardization system. Basic provisions» and GOST 1.2−2009 «interstate standardization system. Interstate standards, rules and recommendations on interstate standardization. Rules of development, adoption, application, renewal and cancellation"

Data on standard

1 PREPARED by Federal state unitary enterprise «all-Russian research center for standardization information and certification of raw materials, materials and substances» (FSUE «UNICEPS»)

2 as AMENDED by the Federal Agency for technical regulation and Metrology (Rosstandart)

3 ACCEPTED by the Interstate Council for standardization, Metrology and certification (Protocol of 3 December 2012 N 54-P)

The adoption voted:

     
Short name of the country on MK (ISO 3166) 004−97
 Country code MK (ISO 3166) 004−97
 Abbreviated name of the national authority for standardization
Azerbaijan
 AZ
 Azstandart
Belarus
 BY
 Gosstandart Of The Republic Of Belarus
Kyrgyzstan
 KG
 Kyrgyzstandard
Russia
 EN
 Rosstandart
Moldova
 MD
 Moldova-Standard
Tajikistan
 TJ
 Tajikstandart

4 by Order of the Federal Agency for technical regulation and Metrology dated 20 November 2012 No. 963-St inter-state standard GOST 31921−2012 introduced as a national standard of the Russian Federation from January 1, 2014

5 this standard complies with EN 1254−1:1998* Copper and copper alloys — Plumbing fittings — Part 1: Fittings with ends for capillary soldering or capillary brazing to copper tubes (Copper and copper alloys. Fittings. Part 1. Fitting end, attachable capillary soldering soft or hard solder for copper pipes) in the chemical composition of major brands of solders.
________________
* Access to international and foreign documents referred to here and hereinafter, can be obtained by clicking on the link to the site shop.cntd.ru. — Note the manufacturer’s database.


Translation from English (EP).

The degree of compliance — non-equivalent (NEQ)

6 Standard based on the application of GOST R 52955−2008

7 INTRODUCED FOR THE FIRST TIME


Information about the changes to this standard is published in the annual reference index «National standards», and the text changes and amendments — in monthly information index «National standards». In case of revision (replacement) or cancellation of this standard a notification will be published in the monthly information index «National standards». Relevant information, notification and lyrics are also posted in the information system of General use — on the official website of the Federal Agency for technical regulation and Metrology on the Internet (www.gost.ru)

1 Scope


This standard covers solders for capillary soldering of fittings from copper and copper alloy designed for joining copper pipes used in drinking water systems, hot and cold water, water (steam) heating, cooling, sewage, water treatment plants and gas supply.

The standard specifies the chemical composition of low-melting solders for low temperature soldering, srednebelaya solders for high temperature soldering and physico-mechanical properties of solders.

2 Normative references


This standard uses the regulatory references to the following international standards:

GOST 1429.0−77 Solders tin-lead. General requirements for methods of analysis

GOST 1429.1−77 Solders tin-lead. Methods for determination of antimony

GOST 1429.2−77 Solders tin-lead. Method for determination of tin

GOST 1429.3−77 Solders tin-lead. Method for determination of iron

GOST 1429.4−77 Solders tin-lead. Methods for determination of copper

GOST 1429.5−77 Solders tin-lead. Methods for determination of bismuth

GOST 1429.6−77 Solders tin-lead. Method for the determination of sulfur

GOST 1429.7−77 Solders tin-lead. Method for the determination of Nickel

GOST 1429.8−77 Solders tin-lead. Method of determining zinc

GOST 1429.9−77 Solders tin-lead. Method for the determination of aluminium

GOST 1953.1−79 Bronze tin. Methods for determination of copper

GOST 1953.2−79 Bronze tin. Methods for determination of lead

GOST 1953.3−79 Bronze tin. Methods for determination of tin

GOST 1953.6−79 Bronze tin. Methods for determination of zinc

GOST 1953.7−79 Bronze tin. Methods of iron determination

GOST 1953.10−79 Bronze tin. Methods for determination of antimony

GOST 1953.11−79 Bronze tin. Methods for determination of bismuth

GOST 6674.1−96 copper phosphorous Alloys. Methods for determination of phosphorus

GOST 16321.1−70 Silver-copper alloys. Method for determination of silver content

GOST 16321.2−70 Alloy silver-copper. Method of spectral analysis

GOST 16882.1−71 Silver-copper-phosphorus solders. Method of determining mass percentage of silver

GOST 16882.2−71 Silver-copper-phosphorus solders. Methods for determination of mass fraction of phosphorus, lead, iron and bismuth

GOST 16883.1−71 Silver-copper-zinc solders. Method of determining mass percentage of silver

GOST 16883.2−71 Silver-copper-zinc solders. The method of determining the mass fraction of copper

GOST 16883.3−71 Silver-copper-zinc solders. Spectral method for determination of lead, iron and bismuth

GOST 19738−74 silver Solders. Brand

GOST 21930−76 Solders tin-lead ingots. Specifications

GOST 21931−76 Solders tin-lead products. Specifications

GOST 25086−2011 non-ferrous metals and their alloys. General requirements for methods of analysis

Note — When using this standard appropriate to test the effect of reference standards in the information system of General use — on the official website of the Federal Agency for technical regulation and Metrology on the Internet or in the annual information index «National standards» published as on January 1 of the current year, and the editions of the monthly information index «National standards» for the current year. If the reference standard is replaced (changed), when using this standard should be guided by replacing (amended) standard. If the reference standard is cancelled without replacement, then the situation in which the given link applies to the extent that does not affect this link.

3 Terms and definitions


This standard applies the following terms with respective definitions:

3.1 low-temperature (soft) brazing: Soldering with a melting point of not more than 450 °C.

3.2 low-melting solders: Solders with a melting point of from 145 °C to 450 °C inclusive.

3.3 high-temperature (hard) soldering: Soldering with a melting point more than 450 °C.

3.4 srednebelaya solders: Solders with a melting point of from 450 °C to 1100 °C inclusive.

4 Stamps

4.1 Chemical composition of low-melting solders for low-temperature (soft) brazing Possu50−0.5 and Possu40−2 according to GOST and GOST 21930 21931 and solder POM2 indicated in table 1.


Table 1 — Chemical composition of low-melting solders for low-temperature (soft) brazing

                       
Brand solder
 Pre-
Affairs		 Mass fraction of elements, %
    Tin Sur-
mA
 Lead Copper Vis-
Mut		 We
slack		 Same-
the Uragan		 No-
Kel		 CE
RA		 Zinc
Possu50−0,5 Min. 49,0 0,2
 The rest - - - - - - -
  Max. 51,0 0,5
 - 0,08 0,1 0,03 0,02 0,02 0,02 0,002
Possu40−2 Min. 39,0 1,5
 The rest - - - - - - -
  Max. 41,0 2,0
 - 0,10 0,2 0,05 0,02 0,08 0,02 0,002
POM2 Min. The rest -
 - 1,0 - - - - - -
  Max. - 0,015
 0,015 3,0 0,015 0,01 0,02 0,02 0,01 0,002


Srednebelaya chemical composition of solders for high-temperature (hard) soldering PCR 65, PCR 45, Psr40, Psrmckd45−15−16−24 according to GOST 19738 and solder Pmfocr6−4-0,03 listed in table 2.

4.2 Chemical composition of solders Possu50−0.5 and Possu40−2 is determined according to GOST 1429.0 — GOST 1429.9.

The chemical composition of the solders POM2 is determined according to GOST 1429.0, 1429.2 GOST, GOST 1429.4.

The chemical composition of the solders PCR 65, PCR 45, Psr40, Psrmckd45−15−16−24 determined according to GOST 16321.1, 16321.2 GOST, GOST 16882.1, 16882.2 GOST, GOST 16883.1 — GOST 16883.3.

The chemical composition of the solder Pmfocr6−4-0,03 determined according to GOST 1953.1 — 1953.3 GOST, GOST 1953.6 in 1953.7, 1953.10 GOST, GOST 1953.11, determination of phosphorus GOST 6674.1.

Allowed the use of other methods of analysis, accuracy is not inferior to mentioned above.

If there is disagreement in the assessment of the chemical composition analysis is carried out according to standards specified in 4.2.

4.3 Physical and mechanical properties of low-melting solders for low-temperature (soft) brazing is given in Appendix A.

4.4 Physical and mechanical properties srednebelaya solders for high-temperature (hard) soldering is given in Appendix B.


Table 2 — Chemical composition srednebelaya solders for high-temperature (hard) soldering

                             
Brand solder
 Pre-
Affairs
 Mass fraction of elements, %
    CE
REB-
ro
 Foz
Fort
 Olo-
in
 CIR-
Ko
tions
 Copper
 Zinc
 Kad-
miy
 No-
Kel
 Sur-
mA
 Swee-
Heff
 Same-
the Uragan
 Vis-
Mut
 The amount of other elements
tov
Psr65
 Min.
 64,5
 -
 -
 -
 19,5
 OS-
tal
Noah
 -
 -
 -
 -
 -
 -
 -
  Max.
 65,5
 -
 -
 -
 20,5
 -
 -
 -
 -
 0,120
 0,15
 0,005
 0,20
Psr45
 Min.
 44,5
 -
 -
 -
 29,5
 OS-
tal
Noah
 -
 -
 -
 -
 -
 -
 -
  Max.
 45,5
 -
 -
 -
 30,5
 -
 -
 -
 -
 0,100
 0,15
 0,005
 0,30
Psr40
 Min.
 39,0
 -
 -
 -
 16,0
 16,2
 OS-
tal
Noah
 0,1
 -
 -
 -
 -
 -
  Max.
 41,0
 -
 -
 -
 17,4
 17,8
 -
 0,5
 -
 0,150
 0,15
 0,005
 0,30
Psrmckd45−15−16−24
 Min.
 44,5
 -
 -
 -
 OS-
tal
Noah
 15,0
 23,0
 -
 -
 -
 -
 -
 -
  Max.
 45,5
 -
 -
 -
   17,0
 25,0
 -
 -
 0,150
 0,15
 0,005
 0,30
Pmfocr6−4-0,03
 Min.
 -
 5,3
 3,5
 0,01
 OS-
tal
Noah
 -
 -
 -
 -
 -
 -
 -
 -
  Max.
 -
 6,3
 4,5
 0,05
 -
 0,06
 -
 -
 0,05
 0,06
 0,10
 0,002
 0,30
Notes

1 the Zirconium solder brand Pmfocr6−4-0,03 not determined. The manufacturer guarantees that the contents of the specified production technology.

2 the Amount of other elements in the solder of the brand Pmfocr6−4-0,03 not in control of it establish purity charge materials.

Annex a (informative). Physical and mechanical properties of low-melting solders for low-temperature (soft) brazing

Appendix A
(reference)


Physical and mechanical properties of low-melting solders for low-temperature (soft) brazing are shown in table A. 1.


Table A. 1

                   
Brand solder
 Melting point, °C

The raft-
ness, g/cmГОСТ 31921-2012 Припои для капиллярной пайки фитингов из меди и медных сплавов для соединения систем трубопроводов. Марки

Udel-
ing.
riches-
some support
Tule-
tion, Ohm·mmГОСТ 31921-2012 Припои для капиллярной пайки фитингов из меди и медных сплавов для соединения систем трубопроводов. Марки/m

 Heat
wire-
ness, kcal/cm·s·degrees

Times
ing company of
Tule-
nie tear, kgf/mmГОСТ 31921-2012 Припои для капиллярной пайки фитингов из меди и медных сплавов для соединения систем трубопроводов. Марки

 Take
tive. -
tion, %

Impact
Naya elm-
bone kgf·M/cmГОСТ 31921-2012 Припои для капиллярной пайки фитингов из меди и медных сплавов для соединения систем трубопроводов. Марки

 Solid
the pride of BRI-
Nelly NV
  Nizh-
average critical
no point
 Top-
average critical
no point
              
Possu40−2
 185
 229
 9,2
 And 0.172
 0,100
 4,3
 48
 2,8
 14,2
Possu50−0,5
 183
 216
 8,9
 0,149
 0,112
 3,8
 62
 4,4
 13,2
POM2
 227
 310
 7,35
 0,126
 0,145
 5,3
 30
 4,8
 13,7

Annex B (reference). Physico-mechanical properties srednebelaya solders for high-temperature (hard) soldering

Appendix B
(reference)


Physico-mechanical properties srednebelaya solders for high-temperature (hard) soldering is given in table B. 1.


Table B. 1

         
Brand solder

Density, g/cmГОСТ 31921-2012 Припои для капиллярной пайки фитингов из меди и медных сплавов для соединения систем трубопроводов. Марки

 Melting point, °C

Electrical resistivity, Ohm·mmГОСТ 31921-2012 Припои для капиллярной пайки фитингов из меди и медных сплавов для соединения систем трубопроводов. Марки/m

    The upper critical point
 The lower critical point
  
Psr65
 9,45
 722
 695
 0,09
Psr45
 9,10
 730
 665
 0,10
Psr40
 9,25
 610
 590
 0,07
Psrmckd45−15−16−24
 9,40
 615
 615
 0,07
Pmfocr6−4-0,03
 7,85
 680
 640
 0,34
       
UDC 621.791,35'5:006.354 ISS 77.120.60   GST 2300 17
  77.120.99    
Key words: solders, fittings, capillary brazing of copper, copper alloys, compounds, systems, copper pipe, tubing, grade, chemical composition