GOST 13462-79
GOST 13462−79 Palladium and palladium alloys. Brand
GOST 13462−79
Group W51
INTERSTATE STANDARD
PALLADIUM AND PALLADIUM ALLOYS
Brand
Palladium and palladium alloys. Trade-marks
GST 17 5130
Date of introduction 1981−01−01
Resolution of the USSR State Committee for standards from
REPLACE GOST 13462−68
REISSUE
1. This standard establishes the brand of palladium and palladium alloys for the manufacture of semi-finished products (sheets, tapes, strips, foils, wire, pipes, profiles, forgings) by hot or cold deformation used in instrument and apparatus building.
2. Chemical composition of palladium and its alloys shall conform to the standards specified in table.1−5.
Table 1
Palladium
Chemical composition, % | |||||||
Mark | Palladium, not less than |
Impurity, not more than | |||||
Platinum, iridium, rhodium, (amount) |
Gold |
Lead |
Silicon |
Iron |
Just | ||
PD of 99.9 |
99,90 |
0,06 |
0,006 |
0,006 |
0,005 |
0,030 |
0,10 |
PD 99,8 |
99,80 |
0,13 |
0,010 |
0,006 |
0,006 |
0,035 |
0,20 |
Note. The column «Total» includes the sum of the impurities listed in the table, as well as admixtures of Nickel and tin.
Table 2
Palladium-iridium alloys
Chemical composition, % | |||||
Mark |
Palladium |
Iridium |
Impurity, not more than | ||
Platinum, rhodium, gold (amount) |
Iron |
The amount of regulated impurities | |||
PDI-10 |
89,7−90,4 |
9,6−10,3 |
0,18 |
0,05 |
0,23 |
PDI-18 |
81,6−82,5 |
17,5−18,4 |
Table 3
Palladium-silver alloys
Chemical composition, % | |||||||
Mark |
Palladium |
Silver |
Impurity, not more than | ||||
Platinum, iridium, rhodium, gold (amount) |
Iron |
Lead |
Bismuth |
The amount of regulated impurities | |||
PDSR-20 |
79,5−80,5 |
19,5−20,5 |
0,19 |
0,05 |
0,004 |
0,002 |
0,24 |
PDSR-30 |
69,5−70,5 |
29,5−30,5 |
|||||
PDSR-40 |
59,5−60,5 |
39,5−40,5 |
Table 4
Palladium-silver-cobalt alloy
Chemical composition, % | ||||||||
Mark |
Palladium | Silver | Cobalt | Impurity, not more than | ||||
Platinum, iridium, rhodium, gold (amount) |
Iron |
Lead |
Bismuth |
The amount of regulated impurities | ||||
Pdsrk-35−5 |
59,2−60,8 |
34,4−35,6 |
4.5 to 5.5 |
0,19 |
0,05 |
0,003 |
0,002 |
0,24 |
Table 5
Palladium-silver-copper alloy
Chemical composition, % | ||||||||
Mark |
Palladium |
Silver |
Copper |
Impurity, not more than | ||||
Platinum, iridium, rhodium, gold (amount) |
Iron |
Lead |
Bismuth |
The amount of regulated impurities | ||||
Pdsrm-36−4 |
59,2−60,8 |
Is 35.4−36.6 in |
3,5−4,5 |
0,19 |
0,04 |
0,003 |
0,002 |
0,23 |
Note to table.1−5. The designation marks the letters stand for: PD — palladium, And iridium, SR — silver, cobalt, M — copper, numerals — mass fraction of the second and third components.
3. Chemical composition of palladium and alloys on its basis is determined according to GOST 12225−80; GOST 12550.1−82, GOST 12550.2−82, GOST 12558.1−78, GOST 12558.2−78, GOST 12560.1−78, GOST 12560.2−78, GOST 12561.1−78, GOST 12561.2−78 or other methods of equal accuracy standard.
4. The density of the alloy and area of application indicated in the application.
APP
Reference
Mark |
Theoretical density, g/cm |
Scope |
PD |
12,16 |
Contacts (sliding, discontinuous), slip rings potentiometers |
PDI-10 |
12,74 |
|
PDI-18 |
13,25 |
|
PDSR-20 |
11,79 |
Contacts (sliding, discontinuous), industrial instrument |
PDSR-30 |
11,61 |
|
PDSR-40 |
11,44 |
|
Pdsrk-35−5 |
To 11.32 |
Contacts (sliding, discontinuous) |
Pdsrm-36−4 |
11,35 |
The contact (sliding) |