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GOST 19738-74

GOST R ISO 5832-2-2014 GOST R ISO 5832-3-2014 GOST R ISO 5832-11-2014 STATE STANDARD P 53777-2010 STATE STANDARD P 52802-2007 GOST 12341-81 GOST 21931-76 GOST 6902-75 GOST 21930-76 GOST 19658-81 GOST 23137-78 GOST 2169-69 GOST 19738-74 GOST 13498-79 GOST 30649-99 GOST P 52245-2004 GOST P 52244-2004

GOST 19738−74 silver Solders. Stamps (Change No. 1)


GOST 19738−74
Group W51

INTERSTATE STANDARD
THE SILVER SOLDERS
Brand
Silver solders. Types

GST 17 5232

Date of introduction 1975−01−01


Promulgated by decree of the State Committee of standards of Ministerial Council of the USSR from 26.04.74 N 1015

The expiration time limit is removed by the Resolution of Gosstandart from 31.01.85 N 241

REPLACE GOST 8190−56 in part of sec. 1. Brand

EDITION with Change No. 1, approved in January 1985 (I & C 5−85)

1. This standard applies to silver solders for General purpose and establishes the brand of solders.

Codes of OKP brands of silver solders is given in Appendix 3.

(Changed edition, Rev. N 1).

2. Brand and chemical composition of silver solders shall be as specified in the table.

3. The approximate assignment of the silver solders are listed in Annex 1.

4. Data on melting points, density, and electrical resistivity of the silver solders is given in Appendix 2.

                             
Brand solder
 Chemical composition, %


 Br-
ro
 Copper

 Zinc

 Tin

 Mar
Ganz		 Sur-
mA
 Foz
Fort
 Cadmium

 No-
Kel
 Lead
 Impurity, not more than



















Pig
CA

 Jelly
for

 Vis — Muta

 The amount
Oprah — dividing-
developed
the prima this
Psr72
 72,0±0,5

 The rest
Noah
 -
 -
 -
 -
 -
 -
 -
 -
 0,005 0,10
 0,005
 0,10
PSR 71

 Compared to 71.0±0,5

 The rest
Noah
 -

 -

 -

 -

 1,0±
0,2
 -

 -

 -

 0,005

 0,15

 0,005

 0,15

ПСр70

 70,0±0,5

 26,0±0,5

 The rest
Noah
 -

 -

 -

 -

 -

 -

 -

 0,050

 0,10

 0,005

 0,15

Psrma 68−27−5

 68,0±0,5

 The rest
Noah
 -

 5,0±0,5

 -

 -

 -

 -

 -

 -

 0,005

 0,15

 0,005

 0,15

PSR 65

 65,0±0,5

 20,0±0,5

 The rest
Noah
 -

 -

 -

 -

 -

 -

 -

 0,100

 0,10

 0,005

 0,15

PSR 62

 62,0±0,5

 28,0±1,0

 -

 The rest
Noah
 -

 -

 -

 -

 -

 -

 0,005

 0,15

 0,005

 0,15

PSR 50

 50,0±0,5

 The rest
Noah
 -

 -

 -

 -

 -

 -

 -

 -

 0,005

 0,15

 0,005

 0,15

AKP 50Кд

 50,0±0,5

 16,0±1,0

 16,0±1,0

 -

 -

 -

 -

 The rest
Noah
 -

 -

 0,100

 0,10

 0,005

 0,15

Pcrcd 50−34−16

 50,0±0,5

 The rest
Noah
 -

 -

 -

 -

 -

 31,0±
1,0
 -

 -

 0,005

 0,15

 0,005

 0,15

PSR 45

 45,0±0,5

 30,0±0,5

 The rest
Noah
 -

 -

 -

 -

 -

 -

 -

 0,050

 0,10

 0,005

 0,15

Pirmccm 45−15-
16−24
 45,0±0,5

 The rest
Noah
 16,0±1,0

 -

 -

 -

 -

 24,0±
1,0
 -

 -

 0,150

 0,15

 0,005

 0,15

AKP 40

 40,0±1,0

 Of 16.7±0,7

 17,0±0,8

 -

 -

 -

 -

 The rest
Noah
 0,3±
0,2
 -

 0,050

 0,10

 0,005

 0,15

The AKP is 37.5

 37,5±0,5

 The rest
Noah
 5,5±0,5

 -

 8,2±0,3

 -

 -

 -

 -

 -

 0,050

 0,10

 0,005

 0,15

PSR 25

 25,0±0,3

 40,0±1,0

 The rest
Noah
 -

 -

 -

 -

 -

 -

 -

 0,050

 0,10

 0,005

 0,15

AKP 25F

 25,0±0,5

 The rest
Noah
 -

 -

 -

 -

 5,0±
0,5
 -

 -

 -

 0,010

 0,15

 0,010

 0,15

RPS 15

 15,0±0,5

 The rest
Noah
 -

 -

 -

 -

 4,8±
0,3
 -

 -

 -

 0,100

 0,05

 0,010

 0,15

AKP 12M

 12,0±0,3

 52,0±1,0

 The rest
Noah
 -

 -

 -

 -

 -

 -

 -

 0,050

 0,10

 0,005

 0,15

PSR 10

 10,0±0,3

 53,0±1,0

 The rest
Noah
 -

 -

-

 -

 -

 -

 0,050

 0,10

 0,005

 0,15

10−90, psro*
 10,0±0,5

 -

 -

 The rest
Noah
 -

 -

 -

 -

 -

 -

 0,200

 0,15

 0,010

 0,30

Psros 8 (VPR-6)*
 8,0±0,5

 -

 -

 The rest
Noah
 -

 7,5±0,5

 -

 -

 -

 -

 0,200

 0,20

 0,015

 0,40

Psrma 5 (CDF-9)*
 5,0±0,5
 Of 2.0±0.5
 -
 The same
 -
 1,0±0,2
 -
 -
 -
 -
 0,200 0,20
 0,015
 0,40
Psros a 3.5 95*
 3,5±0,4

 -

 -

 «

 -

 -

 -

 -

 -

 1,0±
0,3
 -

 0,15

 0,010

 0,15

PSR 3

 3,0±0,3

 -

 -

 -

 -

 -

 -

 -

 -

 The rest
Noah
 -

 0,15

 0,010

 0,15

Psro, 3−97

 3,0±0,3

 -

 -

 The rest
Noah
 -

 -

 -

 -

 -

 -

 0,200

 0,15

 0,010

 0,30

Psros 3−58

 3,0±0,4

 -

 -

 57,8±1,0

 -

 0,5±0,3

 -

 -

 -

 The rest
Noah
 -

 0,15

 0,010

 0,15

AKP 3kd

 3,0±0,5

 -

 1,0±0,5

 -

 -

 -

 -

 OST-
Sal
 -

 -

 0,200

 0,10

 0,010

 0,30

PSR of 2.5

 2,5±0,3

 -

 -

 5,5±0,5

 -

 -

 -

 -

 -

 The rest
Noah
 -

 0,15

 0,010

 0,15

RPS-2.5 C

 2,5±0,2

 -

 -

 -

 -

 -

 -

 -

 -

 The same
 -

 0,15

 0,010

 0,15

PSR 2

 2,0±0,3

 -

30,0±1,0

 -

 -

 -

 5,0±
0,5
 -

 «

 -

 0,15

 0,010

 0,15

Psros 2−58
 2,0±0,3
 -
 - 58,8±1,0
 -
 0,5±0,3
 -
 -
 -
 «
 -
 0,15
 0,010
 0,15
PSR of 1.5
 1,5±0,3
 -
 -
 15,0±1,0
 -
 -
 -
 -
 -
 «
 -
 0,15
 0,010
 0,15
PSR 1

 1,0±0,2

 -

 -

 35,0+1,0

 -

 0,9±0,4

 -

 2,5±
0,5
 -

 «

 -

 0,15

 0,010

 0,15


Notes:

1. In the notation of grades of solders letters stand for: P — solder, SR — silver, CD — cadmium, C — zinc; su — antimony, M — copper, p — phosphor, O — tin, — lead. The number after the letters indicates the silver content in percent.

2. The zinc content in the alloys of the AKP and the AKP 72 50 must be not more than 0,007%.
_______________
* Probably, the error of the original. Should read: Psro 10−90, Psros 8 (VPR-6), Psrma 5 (CDF-9), Psros a 3.5−95. — Note the manufacturer’s database.



(Changed edition, Rev. N 1).

ANNEX 1
Recommended


An exemplary purpose silver solders

   
Brand solder
 Approximate appointment
72 PSR; PSR 71; SGP 62; Psr50kd; 50 PSR; PSR 45; 40 PSR; PSR 37,5; 25 PSR; PSR 15; 10 PSR; PSR Of 2.5
 Tinning and soldering of copper, copper and copper-Nickel alloys, Nickel, Kovar, Nickel silver, brass and bronze

RPS 72

 Soldering iron-Nickel alloy with silver details from steel
RPS 72; 62 PSR; PSR 40; 25 PSR; PSR 12M
 Brazing steel with copper, Nickel, copper and copper-Nickel alloys
72 PSR; PSR 62
 Soldering of copper with a Nickel-plated tungsten
PSR MO 68−27−5; 70 PSR; PSR 50
 Brazing of titanium and titanium alloys with stainless steel
The AKP is 37.5

 Soldering of copper and copper alloys high-temperature alloys and stainless steels
AKP 40

 Brazing copper and brass with Kovar, Nickel, stainless steels and heat resistant alloys, soldering of lead — tin bronzes
Psro 10−90; Psros 8; Psrma 5; Psros A 3.5−95; ESRO 3−97; Psros 3−58; Psros 2−58; PSR 2; PSR Of 1.5
 Soldering and tinning of copper, Nickel, copper and copper-Nickel alloys with silver-plated ceramics, brazing silver-plated details
PSR 3; Psr2; PSR Of 1.5
 Soldering of copper and Nickel with vitreous enamel and ceramics
72 PSR; PSR 70; 65 PSR; PSR 45; PSR 25; 15 PSR; PSR 2
 Soldering and tinning of jewelry

71 AKP; the AKP 25 °F; AKP 15

 Tamifluswine solders for the soldering of brass, bronze, copper, copper, bronze with bronze
AKP 3kd

 Soldering of copper, copper alloys and steels at freshly applied copper plated coating of at least 10 µm
Psrma 68−27−5; Pcrcd 50−34−16; Mtskd 45−15−16−24 PSR; PSR 3; PSR Of 2.5
 Soldering and tinning of non-ferrous metals and steels

PSR1
 Soldering and tinning silver details

ANNEX 2 (informative). The data on melting point, density and electrical resistivity of silver solders


ANNEX 2
Reference

         
Brand solder

Density, kg/mГОСТ 19738-74 Припои серебряные. Марки (с Изменением N 1)

 Melting point, K (°C)

Electrical resistivity,
10ГОСТ 19738-74 Припои серебряные. Марки (с Изменением N 1)Ohm·m

    The upper critical point
 Lower
critical point
  
Psr72
 10000
 1052 (779)
 1052 (779)
 2,1
PSR 71
 9800
 1068 (795)
 918 (654)
 4,3
PSR 70
 9800
 1043 (770)
 988 (715)
 4,1
Psrma 68−27−5
 9900
 1038 (765)
 928 (655)
 14,0
PSR 65
 9450
 995 (722)
 968 (695)
 8,6
PSR 62
 9600
 996 (723) 923 (650)
 25,5
PSR 50
 9300
 1133 (860)
 1052 (779)
 2,5
AKP 50Кд
 9250
 913 (640)
 898 (625)
 7,8
Pirmccm 45−15−16−24
 9400
 888 (615)
 888 (615)
 6,5
Pcrcd 50−34−16
 9600
 958 (685)
 903 (630)
 5,8
PSR 45
 9100
 1003 (730)
 938 (665)
 10,0
AKP 40
 9250
 883 (610)
 863 (590)
 7,0
The AKP is 37.5
 8900
 1083 (810)
 998 (725)
 37,2
PSR 25
 8700
 1048 (775)
 1013 (740)
 7,7
AKP 25F
 8300
 998 (725)
 918 (645)
 18,6
RPS 15
 8500
 1083 (810)
 913 (640)
 20,7
AKP 12M
 8300
 1103 (830)
 1066 (793)
 7,4
PSR 10
 8400
 1123 (850)
 1095 (822)
 7,1
ПСР0 10−90
 7600
 553 (280)
 494 (221)
 12,9
ПСр0Су 8 (VPR-6)
 7400
 523 (250)
 508 (235)
 19,7
ПСрМ0 5 (CDF-9)
 7400
 513 (240)
 488 (215)
 15,3
ПСр0С a 3.5−95
 7400
 497 (224)
 493 (220)
 12,3
PSR 3
 11400
 588 (315)
 577 (304)
 20,4
AKP 3−97
 7400
 498 (225)
 494 (221)
 12,5
ПСр0С 3−58
 8600
 463 (190)
 453 (180)
 14,5
AKP 3kd
 8700
 615 (342)
 587 (314)
 8,0
PSR of 2.5
 11000
 573 (300)
 568 (295)
 21,4
RPS-2.5 C
 11300
 579 (306)
 577 (304)
 20,7
PSR 2
 9500
 511 (238)
 508 (235)
 16,7
ПСр0С 2−58
 8500
 456 (183)
 456 (183)
 14,1
PSR of 1.5
 10400
 553 (280)
 546 (273)
 19,1
PSR 1
 9400
 508 (235)
 498 (225)
 26,0


APPENDIX 2. (Changed edition, Rev. N 1).

ANNEX 3 (informative)

APPENDIX 3
Reference

       
Brand solder
 OKP code
 Brand solder
 OKP code
RPS 72
 17 5232 0006
 AKP 12M
 17 5232 0004
PSR 71
 17 5232 0007
 PSR 10
 17 5232 0005
PSR 70
 17 5232 0001
 ПСр0 10−90
 17 5232 0020
ПСрМ0 68−27−5
 17 5232 0008
 ПСр0Су8 (VPR-6)
 17 5232 0021
PSR 65
 17 5232 0002
 ПСрМ0 5 (CDF-9)
 17 5232 0022
PSR 62
 17 5232 0010
 ПСр0С a 3.5−95
 17 5232 0023
PSR 60
 17 5232 0011
 PSR 3
  
AKP 50Кд
 17 5232 0012
 ПСр0 3−97
 17 5232 0024
Pcrcd 50−34−16
 17 5232 0013
 ПСр0С 3−58
 17 5232 0025
PSR 45
 17 5232 0014
 AKP 3kd
 17 5232 0009
Psmcl 45−15−16−24
 17 5232 0015
 PSR of 2.5
 17 5232 0026
AKP 40
 17 5232 0016
 RPS-2.5 C
 17 5232 0027
The AKP is 37.5
 17 5232 0017
 PSR 2
 17 5232 0028
PSR 25 17 5232 0003
 ПСр0С 2−58
 17 5232 0029
AKP 25F
 17 5232 0018
 PSR of 1.5
 17 5232 0030
RPS 15
 17 5232 0019
 PSR 1
 17 5232 0031


APPENDIX 3. (Added, Rev. N 1).