GOST 10994-74
GOST 10994−74 precision Alloys. Brand (amended N 1−5)
GOST 10994−74
Group B30
INTERSTATE STANDARD
ALLOY PRECISION
Brand
Precision alloys. Grades
ISS 77.080.20
OKP 09 6600
Date of introduction 1975−01−01
INFORMATION DATA
1. DEVELOPED AND INTRODUCED by the Ministry of ferrous metallurgy of the USSR
THE DEVELOPERS OF THE STANDARD
E. K. Sizov, S. S. Gratsianova, V. V. Karataev
2. APPROVED AND put INTO EFFECT by Decision of the USSR State Committee for standards from
3. REPLACE GOST 10994−64
4. REFERENCE NORMATIVE AND TECHNICAL DOCUMENTS
The designation of the reference document referenced |
The number of the paragraph, subparagraph, enumeration, applications |
GOST 7565−81 |
2.6 |
GOST 10533−86 |
App |
GOST 12344−2003 |
2.6 |
GOST 12345−2001 |
2.6 |
GOST 12346−78 |
2.6 |
GOST 12347−77 |
2.6 |
GOST 12348−78 |
2.6 |
GOST 12349−83 |
2.6 |
GOST 12350−78 |
2.6 |
GOST 12351−2003 |
2.6 |
GOST 12352−81 |
2.6 |
GOST 12353−78 |
2.6 |
GOST 12354−81 |
2.6 |
GOST 12355−78 |
2.6 |
GOST 12356−81 |
2.6 |
GOST 12357−84 |
2.6 |
GOST 12364−84 |
2.6 |
GOST 17745−90 |
2.6 |
GOST 28473−90 |
2.6 |
GOST 29095−91 | 2.6 |
5. Limitation of actions taken by Protocol No. 7−95 Interstate Council for standardization, Metrology and certification (ICS 11−95)
6. EDITION Changes N 1, 2, 3, 4, 5, approved in March 1975, June 1978, September 1978, July 1982, June 1989 (IUS 5−75, 8−78, 10−79, 11−82, 11−89), Amendment (ICS 6−2002)
This standard applies to precision wrought alloys and specifies requirements for the chemical composition of the alloys.
To precision alloys are high-alloyed alloys with desired physical and mechanical properties, requiring in some cases narrow limits of the contents of elements in the chemical composition, the special technology of smelting and special treatment.
1. CLASSIFICATION
1.1. Depending on the basic properties of precision alloys are divided into the following groups:
I — magnetically soft, have high magnetic permeability and low coercivity in weak fields;
II — magnetic solid alloys with a given combination of parameters of the limiting hysteresis loop or hysteresis loop corresponding field the maximum permeability;
III — alloys with specified temperature coefficient of linear expansion (CTE);
IV — alloys with elastic elements with high elastic properties in combination with other special properties (high corrosion resistance, high strength, low magnetic permeability and given values of normal elasticity modulus and temperature coefficient of the modulus of elasticity);
V — superconducting alloy, which is characterized by special electrical properties in the low temperature region;
VI — alloys with high electric resistance, having the required combination of electrical and other properties;
VII — thermostatic bimetallic, representing a material composed of two or more layers of metals or alloys with different temperature coefficients of linear expansion, the difference of which provides its elastic deformation when the temperature changes.
(Changed edition, Rev. N 5).
2. BRAND AND CHEMICAL COMPOSITION
2.1. The chemical composition of the alloys shall be those specified in table.1−7.
Table 1
I. Alloys with high magnetic permeability (soft magnetic)
Mark alloy |
Chemical composition, % | |||||||||||
Carbon race, not more | Silicon | Mar — Ganz | Sulfur |
Phosphorus |
Chrome | Nickel | Molyb — den | Cobalt | Copper | Iron | Other elements | |
no more |
||||||||||||
34NKM, 34NKMP |
0,03 |
0,15−0,30 |
0,3−0,6 |
0,02 |
0,02 |
- |
33,5−35,0 |
2,8−3,2 |
28,5−30,0 |
- |
The rest |
- |
35NKKHSP |
0,03 |
0,8−1,2 |
0,3−0,6 |
0,02 |
0,02 |
1,8−2,2 |
35,0−37,0 |
- |
27,0−29,0 |
- |
The same |
- |
40N |
0,05 |
0,15−0,30 |
0,3−0,6 |
0,02 |
0,02 |
- |
39,0−41,0 |
- |
- |
Not more than 0.2 |
« |
- |
40NKM, 40NKMP |
0,03 |
Not more than 0.30 |
0,3−0,6 |
0,02 |
0,02 |
- |
39,3−40,7 |
3,8−4,2 |
24,5−26,0 |
- |
« |
- |
45N |
0,03 |
0,15−0,30 |
Of 0.6−1.1 |
0,02 |
0,02 |
- |
45.0 and 46.5 per |
- |
- |
Not more than 0.2 |
« |
- |
47NK |
0,03 |
0,15−0,30 |
0,3−0,6 |
0,02 |
0,02 |
- |
46,0−48,0 |
- |
22.5 to 23.5 |
- |
« |
- |
50N, 50NP |
0,03 |
0,15−0,30 |
0,3−0,6 |
0,02 |
0,02 |
- |
49,0−50,5 |
- |
- |
Not more than 0.2 |
« |
- |
50NKHS |
0,03 |
1.1 to 1.4 |
Of 0.6−1.1 |
0,02 |
0,02 |
3,8−4,2 |
49,5−51,0 |
- |
- |
Not more than 0.2 |
« |
- |
64N (65N) |
0,03 | 0,15−0,30 | 0,3−0,6 |
0,02 | 0,02 | - | 63,0−65,0 | - | - | - | « | - |
68NM, 68NMP | 0,03 |
Not more than 0.30 |
0,4−0,8 |
0,02 |
0,02 |
- |
67,0−69,0 |
1,5−2,5 |
- |
- |
« |
- |
76NKHD, |
0,03 |
0,15−0,30 |
0,3−0,6 |
0,02 |
0,02 |
1,8−2,2 |
75,0−76,5 |
- |
- |
For 4.8−5.2 |
« |
- |
77NMD, 77NMDP |
0,03 |
0,10−0,30 |
Not more than 1.4 |
0,01 |
0,02 |
- |
75,5−78,0 |
3.9 to 4.5 |
- |
4,8−6,0 |
« |
- |
79NM, 79NMP |
0,03 |
0,30−0,50 |
Of 0.6−1.1 |
0,02 |
0,02 |
- |
78,5−80,0 |
3,8−4,1 |
- |
0.20 | « |
Titan no more 0,15 Aluminium no more 0,15 |
79N3M |
0,03 |
0,15−0,30 |
0,3−0,6 |
0,02 |
0,02 |
- |
78,5−80,0 |
The 3.0 and 3.4 |
- |
- |
The rest |
- |
80NKHS |
0,03 |
1,1−1,5 |
Of 0.6−1.1 |
0,02 |
0,02 |
2,6−3,0 |
79,0 is 81.5 |
- |
- |
0.20 |
« |
Titan not more than 0.15 Aluminium not more than 0.15 |
36KNM |
0,03 |
Not more than 0.40 |
Not more than 0.5 |
0,015 |
0,015 |
- |
21,5−22,5 |
2,8−3,2 |
35,5−37,0 |
- |
« |
- |
83NF |
0,01 |
0,50−1,0 |
Not more than 0.5 |
0,01 |
0,01 |
Not more than 0.5 |
Of 82.5−84.2 per |
- |
- |
- |
« |
Vanadium 3,8−4,2 |
81NMA |
0,01 |
Not more than 0.1 |
Not more than 0.35 |
0,01 |
0,01 |
- |
80,5−81,7 |
4,7−5,2 |
- |
- |
« |
Titanium 2,5−3,3 |
27KKH |
0,04 |
Not more than 0.25 |
0,2−0,4 |
0,015 |
0,015 |
0,3−0,6 |
Not more than 0.3 |
- |
26,5−28,0 |
- |
« |
- |
49K2F |
0,05 |
Not more than 0.30 |
Not more than 0.3 |
0,02 |
0,02 |
- |
Not more than 0.5 |
- |
48,0−50,0 |
- |
« |
Vanadium is 1.7−2.1 |
49KF |
0,05 |
Not more than 0.30 |
Not more than 0.3 |
0,02 |
0,02 |
- |
Not more than 0.5 |
- |
48,0−50,0 |
- |
« |
Vanadium 1,3−1,8 |
49K2FA |
0,03 |
Not more than 0.15 |
Not more than 0.3 |
0,01 |
0,01 |
- |
Not more than 0.3 |
- |
48,0−50,0 |
- |
« |
Vanadium of 1.7−2.0 |
16X |
0,015 |
0.20 |
Not more than 0.3 |
0,015 |
0,015 |
15,5−16,5 |
Not more than 0.3 |
- |
- |
- |
« |
- |
Note. The grades 35NKKHSP, 40NKMP, 40NKM, 64N, 79N3M, 36KNM not allowed to use in the newly created and upgraded technology with
Table 2
II Alloy magnetic solid
Mark alloy |
Chemical composition, % | ||||||||||
Carbon |
Silicon |
Manganese |
Sulfur |
Phosphorus | Chrome |
Nickel | Vanadium |
Cobalt |
Iron |
Other elements | |
no more |
no more |
||||||||||
52K10F |
Not more than 0.12 |
Not more than 0,50 |
Not more than 0.5 |
0,02 |
0,025 |
Not more than 0.5 |
0,7 |
9,8−11,2 |
52,0−54,0 |
The rest |
- |
52K11F |
Not more than 0.12 |
Not more than 0,50 |
Not more than 0.5 |
0,02 |
0,025 |
Not more than 0.5 |
0,7 |
10,0−11,5 |
52,0−54,0 |
The same |
- |
52K12F |
Not more than 0.12 |
Not more than 0,50 |
Not more than 0.5 |
0,02 |
0,025 |
Not more than 0.5 |
0,7 |
11,6−12,5 |
52,0−54,0 |
« |
- |
52K13F |
Not more than 0.12 |
Not more than 0,50 |
Not more than 0.5 |
0,02 |
0,025 |
Not more than 0.5 |
0,7 |
12,6−13,5 |
52,0−54,0 |
« |
- |
35KKH4F |
Not more than 0.06 |
Not more than 0.30 |
Not more than 0.4 |
0,02 |
0,02 |
7,5−8,5 |
- |
3,5−4,5 |
34,3−35,8 |
« |
- |
35KKH6F |
Not more than 0.08 |
Not more than 0.30 |
Not more than 0.4 |
0,02 |
0,02 |
7,5−8,5 |
- |
5.5 to 6.5 |
34,3−35,8 |
« |
- |
35KKH8F |
Not more than 0,09 |
Not more than 0.30 |
Not more than 0.4 |
0,02 |
0,02 |
7,5−8,5 |
- |
7,5−8,5 |
34,3−35,8 |
« |
- |
EKH3 |
Of 0.90−1.10 |
0,17−0,40 |
0,2−0,4 |
0,02 |
0,03 |
2,8−3,6 |
0,3 |
- |
- |
« |
- |
EV6 |
0,68−0,78 |
0,17−0,40 |
0,2−0,4 |
0,02 |
0,03 |
0,3−0,5 |
0,3 |
- |
- |
« |
Tungsten 5,2−6,2 |
EKH5K5 |
0,90-of 1.05 |
0,17−0,40 |
0,2−0,4 |
0,02 |
0,03 |
5.5 to 6.5 |
0,6 |
- |
5.5 to 6.5 |
« |
- |
EKH9K15M2 |
0,90-of 1.05 |
0,17−0,40 |
0,2−0,4 |
0,02 |
0,03 |
8,0−10,0 |
0,6 |
- |
13,5−16,5 |
« |
Molybdenum 1,2−1,7 |
Note. Alloy brand EV6 is not allowed to use in the newly created and upgraded technology with
Table 3
III. Alloys with specified temperature coefficient of linear expansion
Grade | Chemical composition, % | ||||||||||
Carbon |
Silicon |
Manganese |
Sulfur |
Phosphorus |
Chrome |
Nickel |
Cobalt |
Copper |
Iron | Other elements | |
no more |
no more |
||||||||||
29NK, 29NK-VI, 29NK-VI-1, 29NK-1 |
0,03 |
0,30 |
Not more than 0.4 | 0,015 |
0,015 |
No more 0,1 |
28,5−29,5 |
17,0−18,0 |
No more 0,2 |
The rest | Aluminum not more than 0.2 Titanium not more than 0.1 |
30NKD, 30NKD-VI |
0,05 |
0,30 |
Not more than 0.4 |
0,015 |
0,015 |
- |
29,5−30,5 |
13,0−14,2 |
0,3−0,5 |
« |
- |
32NKD |
0,05 |
0,20 |
Not more than 0.4 |
0,015 |
0,015 |
- |
31,5−33,0 |
3,2 — 4,2 |
0,6−0,8 |
« |
- |
32NK-VI |
0,03 |
0,30 |
Not more than 0.4 |
0,015 |
0,015 |
Not more than 0.10 |
31,5−33,0 |
3,7−4,7 |
- |
« |
- |
33NK, 33NK-VI |
0,05 |
0,30 |
Not more than 0.4 |
0,015 |
0,015 |
- |
32,5−33,5 |
16,5−17,5 |
- |
« |
- |
35NKT |
0,05 |
0,50 |
Not more than 0.4 |
- |
- |
- |
34,0−35,0 |
5,0−6,0 |
0,2−0,4 |
« |
Titanium 2.3 to 2.8 |
36N, 36N-VI |
0,05 |
0,30 |
0,3−0,6 |
0,015 |
0,015 |
No more 0,15 |
35,0−37,0 |
- |
No more 0,1 |
« |
Aluminium not more than 0.1 Vanadium is not more than 0.1 Molybdenum is not more than 0.1 |
36NKH |
0,05 |
0,30 |
0,3−0,6 |
0,015 |
0,015 |
0,4−0,6 |
35,0−37,0 |
- |
Not more than 0.25 |
« |
- |
38NKD, 38NKD-VI |
0,05 |
0,30 |
Not more than 0.4 |
0,015 |
0,015 |
- |
37,5−38,5 |
4.5 to 5.5 |
4.5 to 5.5 |
« |
- |
39N |
0,05 |
0,30 |
0,3−0,6 |
0,015 |
0,015 |
- |
38,0−40,0 |
- |
Not more than 0.2 |
« |
- |
42N, 42N-VI |
0,03 |
0,30 |
Not more than 0.4 |
0,015 |
0,015 |
- |
41,5−43,0 |
- |
Not more than 0.1 |
« |
- |
42NA-VI |
0,03 |
0,15 |
Not more than 0.05 |
0,010 |
0,006 |
- |
41,5−42,5 |
- |
Not more than 0.1 |
The rest |
- |
47NKH |
0,05 |
0,30 |
0,3−0,6 |
0,015 |
0,015 |
0,7−1,0 |
46,0−47,0 |
- |
Not more than 0.2 |
« |
- |
47N3KH |
0,05 |
0,30 |
0,3−0,6 |
0,015 |
0,015 |
For 3.0−4.0 |
46,0−48,0 |
- |
Not more than 0.2 |
« |
- |
47ND, 47ND-VI |
0,05 |
0,30 |
Not more than 0.4 |
0,015 |
0,015 |
- |
46,0−48,0 |
- |
4.5 to 5.5 |
« |
- |
47NKHR |
0,05 |
0,30 |
Not more than 0.4 |
0,015 |
0,015 |
4,5−6,0 |
46,0−48,0 |
- |
- |
« |
Boron is not more than 0.02 |
48NKH |
0,05 |
0,30 |
0,3−0,6 |
0,015 |
0,015 |
0,7−1,0 |
48,0−49,5 |
- |
Not more than 0.2 |
« |
- |
52N, 52N-VI |
0,05 |
0,20 |
Not more than 0.4 | 0,015 |
0,015 |
No more 0,2 |
51,5−52,5 |
- |
No more 0,2 |
« |
- |
58N-VI |
0,03 |
0,30 |
Not more than 0.5 |
0,015 |
0,015 |
- |
57,5−59,5 |
- |
No more 0,3 |
« |
- |
Notes:
1. In the alloy 29NK brands, 29NK-VI, 29NK-1, 29NK-VI-1 the deviation from the mass fraction of cobalt of ±0.5%. Mass fraction of silicon in the alloy 29NK-VI, 29NK-VI-1 must be no more than 0.28 percent.
2. Alloy brand 36N by agreement of the parties is made with a mass fraction of carbon not more than 0.10%.
3. For grades 29NK, 29NK-VI, the amount of impurities (carbon, chromium, copper, titanium, sulfur, phosphorus, manganese, silicon, aluminium) shall not exceed 1%.
4. In the alloys by vacuum melting endokrinnoj mass fraction of gas should be no more than:
oxygen — 0,008% nitrogen and 0.01% of hydrogen is 0.001%. Mass fraction of carbon in smelting special alloys must be not more than 0.02%.
5. For grades 42N, 42N-VI, 42NA-VI mass fraction of vanadium, molybdenum, chromium, aluminum should be not more than 0.1% each.
6. The grades 39N, 33NK, 33NK-VI, 47N3KH not allowed to use in the newly created and upgraded technology with
7. By agreement between manufacturer and consumer in the smelting 40-ton furnaces allowed in grades 36N and 42N mass fraction of vanadium, molybdenum, aluminium not more than 0.15% each, chromium not more than 0.2%.
Table 4
IV. Alloys with desired properties of elasticity
Mark alloy |
Chemical composition, % | ||||||||||||
Carbon, not more than | Cream — tions | Manganese | Sulfur |
Phosphorus |
Chrome | Nickel | Molyb — den | Titan | Aluminium | Cobalt | Iron | Other elements | |
no more |
|||||||||||||
36NICRTIAL |
0,05 |
0,3−0,7 |
0,8−1,2 |
0,02 |
0,02 |
11,5−13,0 |
35,0−37,0 |
- |
For 2.7−3.2 |
0,9−1,2 |
- |
The rest Noah |
- |
36NKHTJU5M |
0,05 |
0,3−0,7 |
0,8−1,2 |
0,02 |
0,02 |
12,5−13,5 |
35,0−37,0 |
4,0−6,0 |
For 2.7−3.2 |
1,0−1,3 |
- |
« |
- |
36NKHTJU8M |
0,05 |
0,3−0,7 |
0,8−1,2 |
0,02 |
0,02 |
12,0−13,5 |
35,0−37,0 |
7,5−8,5 |
For 2.7−3.2 |
1,0−1,3 |
- |
« |
- |
42NKHTJU |
0,05 |
0,5−0,8 |
0,5−0,8 |
0,02 |
0,02 |
5,3−5,9 |
41,5−43,5 |
- |
2,4−3,0 |
0,5−1,0 |
- |
« |
- |
42NKHTJUA |
0,05 |
0,4−0,7 |
0,3−0,6 |
0,02 |
0,02 |
5.0 to 5.6 |
41,5−43,5 |
- |
2,3−2,9 |
0,6−1,0 |
- |
« |
- |
44NKHTJU |
0,05 |
0,3−0,6 |
0,3−0,6 |
0,02 |
0,02 |
5.0 to 5.6 |
43,5−45,5 |
- |
2.2 and 2.7 |
0,4−0,8 |
- |
« |
- |
68NKHVKTJU, 68NKHVKTJU-VI |
0,05 |
Not more than 0.4 |
Not more than 0.4 |
0,010 |
0,015 |
18,0−20,0 |
The rest |
- |
For 2.7−3.2 |
1,3−1,8 |
5,5−6,7 |
Not more than 1.0 |
Tungsten 9,0−10,5 The calculated boron 0,003 The calculated cerium 0,05 Copper is not more than 0.07 Vanadium less than 0.2 Niobium is not more than 0.2 |
97NL |
0,03 |
Not more than 0.2 |
Not more than 0.3 |
0,01 |
0,01 |
- |
Basis |
- |
- |
He more than 0.3 |
- |
Not more than 0.5 |
Barely to 2.1−2.5 Copper not more than 0.1 |
17KHNGT |
0,05 |
Not more than 0.6 |
0,8−1,2 |
0,02 |
0,02 |
16,5−17,5 |
6,5−7,5 |
- |
0,8−1,2 |
He more than 0.5 |
- |
The rest Noah |
- |
40KKHNM |
0,07−0,12 |
Not more than 0.5 |
1,8−2,2 |
0,02 |
0,02 |
19,0−21,0 |
15,0−17,0 |
6,4−7,4 |
- |
- |
39,0−41,0 |
« |
- |
40KNKHMVTJU |
0,05 |
Not more than 0.5 |
1,8−2,2 |
0,02 |
0,02 |
11,5−13,0 |
18,0−20,0 |
For 3.0−4.0 |
1,5−2,0 |
0,2−0,5 |
39,0−41,0 |
« |
Tungsten 6,0−7,0 |
Note. Alloy brand 36NKHTJU8M not allowed to use in the newly created and upgraded technology from
Table 5
V. Superconducting alloys
Grade | Chemical composition, % | |||||||
Carbon, not more than | Titan | Niobium | Cubic Zirconia |
Molybdenum |
Rhenium+ iron |
Oxygen |
Nitrogen | |
no more | ||||||||
35BT |
0,03 |
60,0−64,0 |
33,5−36,5 |
1.7 and 4.3 |
- |
- |
- |
- |
BTC-VD |
0,03 |
0,07−0,20 |
The rest |
0,2−1,0 |
- |
- |
0,005 |
0,005 |
70TM-VD |
0,03 |
A 73.5−76.0 per |
- |
- |
24,0−26,0 |
2,5 |
- |
- |
Table 6
VI. Alloys with high electrical resistance
Grade | Chemical composition, % | ||||||||||
Carbon race, not more | Cream tions |
Manganese | Sulfur | Phosphorus | Chrome | Nickel | Titan | Aluminium | Iron | Other elements | |
no more |
|||||||||||
H15YU5 |
0,08 |
Not more than 0.7 |
Not more than 0.7 |
0,015 |
0,030 |
13,5−15,5 |
Not more than 0.6 |
0,20−0,60 |
4.5 to 5.5 |
The rest |
Calcium the calculated 0,1 The calculated cerium 0,1 |
N80KHJUD-VI |
0,03 |
Not more than 0.35 |
Not more than 0.2 |
0,008 |
0,010 |
19,0−20,0 |
Basis |
- |
3,5−4,0 |
Not more than 0.5 |
Copper 0,9−1,2 |
KH23JU5 |
0,05 |
Not more than 0.6 |
Not more than 0.3 |
0,015 |
0,020 |
21,5−23,5 |
Not more than 0.6 |
0,15−0,40 |
4.6 to 5.3 |
The rest |
Calcium the calculated 0,1 The calculated cerium 0,1 |
KH27JU5T |
0,05 |
Not more than 0.6 |
No more 0,3 |
0,015 |
0,020 |
26,0−28,0 |
Not more than 0.6 |
0,15−0,40 |
5,0−5,8 |
The rest |
Calcium the calculated 0,1 The calculated cerium 0,1 Barium calculated not more than 0.5 |
KHN70JU-N |
0,10 |
Not more than 0.8 |
Not more than 0.3 |
0,020 |
0,020 |
26,0−28,9 |
The rest |
- |
3,0−3,8 |
Not more than 1.5 |
Barium not more than 0.10 Cerium is not more than 0.03 |
KHN20JUS |
0,08 |
2,0−2,7 |
0,3−0,8 |
0,020 |
0,030 |
19,0−21,0 |
19,5−21,5 |
0.20 |
1.0 to 1.5 |
The rest |
Zirconium, calculated as 0.2 The calculated cerium 0,1 Calcium the calculated 0,1 |
KH20N73JUM-VI | 0,05 | Not more than 0.2 | Not more than 0.3 | 0,010 | 0,010 | 19,0−21,0 | The rest | Not more than 0.05 | 3,1−3,6 | 1,5−2,0 | Molybdenum 1,3−1,8 The calculated cerium 0,1 |
H15N60-H | 0,06 | 1.0 to 1.5 | Not more than 0.6 | 0,015 | 0,020 | 15,0−18,0 | 55,0−61,0 | 0.20 |
0.20 |
The rest | Zirconium 0,2−0,5 |
H15N60-N-VI | 0,06 | 1.0 to 1.5 | Not more than 0.6 | 0,015 | 0,020 | 15,0−18,0 | 55,0−61,0 | 0.20 | 0.20 | The rest | The calculated cerium 0,1 Magnesium the estimated 0,1 |
H15N60 | 0,15 | 0,8−1,5 | Not more than 1.5 | 0,020 | 0,030 | 15,0−18,0 | 55,0−61,0 | No more than 0,30 | No more 0,20 |
The rest | - |
CR20NI80-H-VI | 0,05 | 1.0 to 1.5 | Not more than 0.6 | 0,015 | 0,020 | 20,0−23,0 | The rest | No more 0,20 |
0.20 | Not more than 1.0 | The calculated cerium 0,1 Magnesium calculated 0,12 |
CR20NI80-H | 0,06 | 1.0 to 1.5 | Not more than 0.6 |
0,015 | 0,020 | 20,0−23,0 | The rest | No more 0,20 |
0.20 | Not more than 1.0 | Zirconium 0,2−0,5 |
CR20NI80 | 0,10 | 0,9−1,5 | Not more than 0.7 | 0,020 | 0,030 | 20,0−23,0 | The rest | Not more than 0.30 |
0.20 | Not more than 1.5 | - |
CR20NI80-VI | 0,05 | 0,4−1,0 | Not more than 0.3 |
0,010 | 0,010 | 20,0−23,0 | The rest | Not more than 0.05 |
Not more than 1.5 | Not more than 1.5 | - |
N50K10 | 0,03 | Not more than 0.15 |
Not more than 0.3 |
0,015 | 0,015 | - | 50,0−52,0 | - | - | The rest | Cobalt 10,0−11,0 |
KH23JU5T | 0,05 | Not more than 0.5 | Not more than 0.3 | 0,015 | 0,030 | 22,0−24,0 | Not more than 0.6 | 0,2−0,5 | 5,0−5,8 | The rest | Calcium the calculated 0,1 The calculated cerium 0,1 |
Notes:
1. Alloys of H15N60-H and CR20NI80-H must be smelted in induction furnaces. Allowed in the smelting plasma furnaces with a ceramic crucible in coordination with the consumer before
2. For alloy grade CR20NI80, the presence of residual rare-earth elements, barium, calcium, magnesium is not a rejection symptom. For alloy grade CR20NI80-VI deoxidation of rare earth elements and zirconium are not allowed.
3. In the smelting of alloys H15YU5, KH23JU5, KH23JU5T, KH27JU5T intended for the manufacture of heating elements, should be used fresh charge materials. Use waste its own brands.
4. In grades H15YU5, KH23JU5, KH27JU5T allowed mass fraction of Zirconia is not more than 0.1%.
5. The alloy grade KHN20JUS allowed mass fraction of nitrogen of not more than 0.15%.
Table 7
VII. The components of the thermostatic bimetallic
Mark alloy |
Chemical composition, % | |||||||||
Carbon, not more than | Silicon |
Manganese |
Sulfur |
Phosphorus |
Chrome |
Nickel |
Copper |
Iron |
Other elements | |
no more |
||||||||||
19NKH |
0,08 |
0,2−0,4 |
0,3−0,6 |
0,02 |
0,02 |
10,0−12,0 |
18,0−20,0 |
- |
The rest |
- |
20NG |
0,05 |
0,15−0,30 |
5.5 to 6.5 |
0,02 |
0,02 |
- |
19,0−21,0 |
- |
« |
- |
24NKH |
0,25−0,35 |
0,15−0,30 |
0,3−0,6 |
0,02 |
0,02 |
2.0 to 3.0 |
23,0−25,0 |
- |
« |
- |
36N |
0,05 |
0,30 |
0,3−0,6 |
0,02 |
0,02 |
Not more than 0.15 |
35,0−37,0 |
- |
« |
- |
42N |
0,03 |
0,30 |
Not more than 0.4 |
0,02 |
0,02 |
- |
41,5−43,0 |
Not more than 0.1 |
« |
- |
45NKH |
0,05 |
0,15−0,30 |
0,4−0,6 |
0,02 |
0,02 |
5,0−6,5 |
44,0−46,0 |
- |
« |
- |
46NKH |
0,05 |
Not more than 0.3 |
Not more than 0.4 |
0,02 |
0,02 |
- |
45,5−46,5 |
- |
« |
- |
50N |
0,03 |
0,15−0,30 |
0,3−0,6 |
0,02 |
0,02 |
- |
49,0−50,5 |
Not more than 0.2 |
« |
- |
75GND |
0,05 |
Not more than 0.5 |
Basis |
0,02 |
0,03 |
- |
14,0−16,0 |
9,5−11,0 |
Not more than 0.8 |
- |
(Changed edition, Rev. N 2, 3, 5).
2.2. The chemical composition of the alloys of groups I, II and V is optional if the properties of the alloys with the requirements of technical documentation for metal products.
The chemical composition of the alloys of groups III, IV, VI and VII can be slightly modified in the technical documentation for specific products to ensure the required properties.
2.3. Mass fraction of impurities, regulated table.1−7 (sulfur, phosphorus, chromium, Nickel, titanium, aluminium, etc.) is controlled by the manufacturer periodically, but not less than once per year.
2.4. Name of grades, with the exception of group VI consists of letter symbols of the elements and a two-digit number ahead of the letter denoting the average mass fraction of the element of interest included in the basis of alloy (other than iron).
Name of grades VI group consists of a symbol of the element and any following digits. The figures after the letters indicate the average mass fraction of alloying element in integer units.
Chemical elements in the stamps marked with the following letters: B — niobium, the tungsten, G — manganese, D — copper, cobalt, L — barili, M — molybdenum, N — Nickel, P — boron, — silicon, T — Titan, Yu — aluminum, Kh — chrome, f — vanadium.
The letter «a» at the end of the stamp means that the alloy produced with narrowed chemical composition limits, figure 1 in name brands 29NK-1 and 29NK-VI-1 denotes the narrowed limits of CTE.
The letter E in the name stands for brands alloy magnetic solid.
The sign «-" in tables means that the mass fraction of the element is not regulated.
The application of special melting methods or their combinations: vacuum induction, electron beam, plasma, electroslag and vacuum-arc remelting alloys are additionally denoted by a dash, respectively: VI, EL, P, W, VD and their chemical composition should conform to the standards table.1−7, if other elements content not specified in the technical documentation for metal products.
2.3, 2.4. (Changed edition, Rev. N 5).
2.5. An exemplary designation and main technical characteristics of the alloys listed in the Appendix.
2.6. The chemical composition of the alloys is determined on one sample from melting GOST 12344−12357 GOST, GOST 12364, 28473 GOST, GOST 29095, or other methods providing the required accuracy. Sampling — according to GOST 7565. The gas content is determined according to GOST 17745.
(Added, Rev. No. 5, Amendment).
APPLICATION (recommended). The approximate assignment of grades and main technical characteristics
APP
Recommended
Table 1*
_______________
* Table.2. (Deleted, Rev. N 2).
The approximate assignment of grades and main technical characteristics
Grade |
The main technical characteristics |
Approximate appointment |
I. Alloys with high magnetic permeability (soft magnetic) | ||
45N, 50N |
Alloys with high magnetic permeability, with the highest value of saturation magnetic flux density of the entire group of iron-Nickel alloys, of at least 1.5 T |
Core magdalinova and small power transformers, chokes, relays and parts of magnetic circuits operating at high inductions without bias or with a small magnetization |
50NKHS |
Alloy with high magnetic permeability and high specific electrical resistance for induction of at least 1.0 T |
For the cores of pulse transformers and communication equipment sound and high frequencies, operating without a bias or with a small magnetization for cores of magnetic heads |
40N |
Alloy with high magnetic permeability and saturation induction |
For cores anti-interference ignition cable cars |
50NP |
The alloy grade 50N with crystallographic texture and rectangular hysteresis loop |
For cores of magnetic amplifiers, switching choke, rectifier units, elements of computing machines computing machines |
34NKMP, 35NKKHSP, 40NKMP, 68NMP |
Alloys 34NKM, 35НКХС, 40NKM and 68NM with magnetic texture and rectangular hysteresis loop, high magnetic permeability and saturation induction of at least 1.2−1.5 T |
For cores of magnetic amplifiers, switching choke, rectifier units, elements of computing machines computing machines |
76NKHD, 79NM, 80NKHS, 77NMD |
Alloys with high magnetic permeability in weak fields at saturation induction of 0.65−0.75 T |
For small cores of transformers, chokes and relays, working in weak magnetic fields, screens. Small thickness (0,05−0,02 mm) — for the cores of pulse transformers, magnetic amplifiers and contactless relay; mark 80NKHS for cores of magnetic heads |
68NM, 79N3M |
Alloys with high values of permeability and induction of increments for a unipolar pulsed magnetization, having a magnetic texture |
For the cores of pulse and broadband transformers |
47NK, 64N, 40NKM |
The alloys with low residual induction and constancy of permeability in a wide range of fields, having a magnetic texture |
For cores of coils of constant inductance, chokes filters, wideband transformers |
16X |
Alloy with a high induction in weak and medium-sized fields and a low coercive force; with corrosion resistance in some acidic and corrosive environments |
For cores of different management systems anchors and magnets; parts of electrical machines without protective coatings, working in difficult conditions of exposure medium, temperature and pressure |
36KNM |
Alloy with a high induction in weak and medium-sized fields and a low coercive force; high corrosion resistance in sea water |
For magnetic circuits operating in sea water |
83NF |
The alloy with the highest initial permeability at constant and variable fields |
For cores of small transformers and chokes, working in weak fields. For magnetic screens |
27KKH |
Alloy with induction from 24 kgs in medium and strong fields, high Curie temperature of 950 °C and improved mechanical properties |
For rotors and stators of electrical machines and other magnetic cores, operating at normal and high temperatures and in conditions of mechanical stress |
49K2F |
Alloy with high magnetic saturation, high and constant permeability, and high magnetostriction and high Curie temperature |
For packages of ultrasonic transducers telephone membranes |
49KF |
Alloy with a magnetic saturation of not less than 2.35 T, a high Curie temperature of 950 °C and high magnetostriction |
For the cores and pole pieces, magnets and solenoids |
49K2FA |
Alloy with a magnetic saturation of not less than 2.35 T, a high Curie temperature of 950 °C and high magnetostriction |
For transformers, magnetic amplifiers, rotors and stators of electric machines |
79NMP, 77NMDP |
Alloys with a high Squareness hysteresis loop and a low coefficient of magnetization reversal |
For the small band of magnetic cores, switching devices, logic elements, shift registers, trigger systems |
81NMA |
The alloy with the highest value of magnetic permeability in weak permanent and variable magnetic fields with low sensitivity to mechanical stress and increased strength. Depending on the final heat treatment can be from 640 N/mm(65 kgf/mm) up to 1270 N/mm(130 kgf/mm) |
For cores of magnetic heads, small transformers, chokes, relays, flaw detectors, magnetic shields, ferroprobes for use in electronic equipment high-sensitivity |
Note. The grades 76NKHD, 77NMD and 79NM after heat treatment with slow cooling from 600 °C shows little change in climatic properties temperature range. | ||
II. Alloy magnetic solid | ||
52K 52K |
Alloys with magnetic energy (16−24) 10TA/m. |
For small-sized permanent magnets. The grades 52K |
Alloys are anisotropic. Wire of alloy grade 52K |
||
35KKH 35KKH8F |
Alloys with the specified parameters private (in the maximum permeability) of the hysteresis loop. Acquire magnetic properties after cold deformation and tempering. The grades 35KKH |
For the active part of the hysteresis motors |
EKH3, EV6, EKH5K5, EKH9K15M2 |
Alloy steel with hard magnetic coercivity of 5 to 12 kA/m and residual induction of from 0.8 to 1.0 T |
Permanent magnets for non-critical assignments |
III. Alloys with specified temperature coefficient of linear expansion (CTE) | ||
36N, 36N-VI |
Alloy with a minimum CTE of 1.510degin the temperature range from minus 60 to plus 100 °C |
For details of the devices, requiring constant size in the range of climatic temperatures |
32NKD |
Alloy in the tempered condition, with a minimum CTE of 1.010degin the temperature range from minus 60 to plus 100 °C |
For details of the instruments are very high precision, requiring constant size in the range of climatic temperatures |
29NK, 29NK-VI, 29NK-1, 29NK-VI-1 |
Alloy with a CTE (4.5 to 6.5)10degin the temperature range from minus 70 to plus 420 °C |
For vacuum-tight junctions of items of electronic equipment with glass С49−1, C52−1, C48−1, С47−1 |
Alloy 29NK-1 and 29NK-VI-1 are narrowed CTE values compared with the alloy 29NK and 29NK-VI |
||
30NKD, 30NKD-VI |
Alloy with a CTE (3.3 to 4.6 m)10degin the temperature range from -60 to + 400 °C |
For vacuum-tight junctions with refractory glass C38−1 and for certain types of junctions with glass C40−1 |
38NKD, 38NKD-VI |
Alloy with a CTE (7,0−7,8)10degin the temperature range from -60 to + 400 °C |
For vacuum-tight junctions with glass, P-6, С72−4, with sapphire |
47NKH |
Alloy with a CTE (8,0−9,0)10degin the temperature range from -70 to + 450 °C |
For vacuum-tight junctions with thermometric glass 16Ш, С72−4, etc. |
48NKH |
Alloy with a CTE (8,5−9,5)10degin the temperature range from -70 to + 450 °C |
For vacuum-tight junctions with thermometric glass 16Ш, С72−4, etc. |
47N3KH |
Alloy with a CTE (9,5−10,5)10degin the temperature range from -70 to + 400 °C |
For vacuum-tight joints with thin film soft glass «Lenses», etc. |
33NK, 33NK-VI |
Alloy with a CTE (6−9)10degin the temperature range from -70 to + 470 °C |
For connections with ceramics, mica and glass С72−4 |
47ND, 47ND-VI |
Alloy with a CTE (9,0−11,0)10degin the temperature range from -70 to + 440 °C, With a high permeability and saturation induction of 1.4 T |
For soldering with soft glass С93−4, С93−2, С95−2, С94−1, C90−1, C90−2, etc., to connect with ceramics and mica, for springs of hermetic contacts |
47NKHR |
Alloy with a CTE (8,5−11,0)10degin the temperature range from -70 to + 330 °C |
For vacuum junctions of items of electronic equipment with glass C90−1, С93−2, С93−4, С94−1, С95−2, etc. |
42N, 42NA-VI, 42N-VI |
Alloy with a CTE (4.5 to 5.5)10degin the temperature range from -70 to + 340 °C |
In vacuum technology |
18ХТФ, 18ХМТФ |
Alloy with a CTE (11−11,4)10degin the temperature range from -70 to + 550 °C |
For vacuum-tight connections with the glass C90−1, С93−4, С95−2 and encapsulated contacts |
52N, 52N-VI |
Alloy with a CTE (1,0−11,5)10degin the temperature range from -70 to + 550 °C, With a high permeability and saturation induction of 1.5 T |
To connect with soft glass C90−1, C90−2, С93−2, С94−1, С95−2 and С93−4 |
58N-VI |
Alloy with a CTE (11,5±0,3)10degin the temperature range from plus 20 to plus 100 °C and high dimensional stability |
For line measures of length |
35NKT |
Alloy dispersion-hardened with a CTE of 3.5to 10degin the temperature range from plus 20 to plus 60 °C and from plus 20 to minus 60 °C with the temporary resistance not less than 105 kgf/mm |
For parts of devices operating at high loads |
32NK-VI |
The alloy in the annealed condition with a minimum CTE of not more than 1.510degin the temperature range from plus 20 to plus 100 °C and from plus 20 to minus 60 °C |
For products with a polished surface, parts of complex shape that cannot be subjected to annealing to obtain a lower CTE |
39N |
Alloy with a CTE of 4and 10degin the temperature range from plus 20 to minus 258 °C |
For structures and pipelines operating at low temperatures |
36NKH |
Alloy with a CTE (1.0 to 2.0)10degin the temperature range from plus 20 to plus 100 °C and from plus 20 to minus 258 °C |
For structures and pipelines operating at low temperatures |
IV. Alloys with desired properties of elasticity | ||
40KKHNM |
Alloy with a temporary resistance wire 2450−2650 MN/m(250−270 kgf/mm), normal elasticity modulus 196000 MN/m(20000 kgf/mm), non-magnetic corrosion resistant in aggressive environments and in tropical climates, the strain-hardening |
For factory springs, clockworks, twisted cylindrical springs operating at temperatures up to 400 °C, for cores of electrical equipment, for details of surgery |
40KNKHMVTJU |
Alloy non-magnetic corrosion resistant strain-hardening with a temporary resistance wire 1960−2160 MN/m(200−220 kg/mm), normal elasticity modulus 216000 MN/m(22000 kgf/mm) |
For clockwork springs watches |
36NICRTIAL |
Alloy non-magnetic corrosion-resistant dispersion-hardened with a temporary resistance 1180−1570 MN/m(120−160 kgf/mm), normal elasticity modulus 186500−196000 MN/m(19000−20000 kgf/mm) |
For elastic sensing elements of the devices and components operating at temperatures up to 250 °C |
36NKHTJU5M |
Alloy non-magnetic corrosion-resistant dispersion-hardened with a temporary resistance 1375−1765 MN/m(140−180 kgf/mm), normal elasticity modulus 196000−206000 MN/m(20000−21000 kg/mm) |
For elastic sensing elements, operating at temperatures up to 350 °C |
36NKHTJU8M |
Alloy non-magnetic corrosion-resistant dispersion-hardened with a temporary resistance 1375−1960 MN/m(140−200 kg/mm), normal elasticity modulus 196000−216000 MN/m(20000−22000 kgf/mm) |
For elastic sensing elements, operating at temperatures up to 400 °C |
68NKHVKTJU |
Alloy non-magnetic corrosion-resistant dispersion-hardened with a temporary resistance 1375−1570 MN/m(140−160 kgf/mm), normal elasticity modulus 196000−216000 MN/m(20000−22000 kgf/mm) |
For elastic sensing elements and parts of devices, operating at temperatures from minus 196 to plus 500 °C |
17KHNGT |
Alloy corrosion-resistant in all climatic conditions and some corrosive environments, precipitation hardening, with a temporary resistance 1470−1720 MN/m(150−175 kg/mm), normal elasticity modulus 196000 MN/m(20000 kgf/mm) |
For elastic sensing elements and spring parts for General and special purposes, operating at temperatures up to 250 °C |
97NL |
Alloy dispersion-hardening corrosion-resistant with a temporary resistance 1570−1865 MN/m(160−190 kg/mm), normal elasticity modulus 196000−206000 MN/m(20000−21000 kg/mm) and low specific electrical resistance of 0.35 Ω·mm/m |
To live and the power of elastic sensing elements, operating at temperatures up to 300 °C |
42NKHTJU |
Alloy dispersion-hardening with low temperature coefficient of elastic modulus up to 100 °C (20·101/°C) with a temporary resistance 1180−1570 MN/m(120−160 kgf/mm) |
For elastic sensing elements, operating at temperatures up to 100 °C |
42NKHTJUA |
Alloy precipitation hardening with a minimum temperature coefficient of the modulus of elasticity, providing temperature error hair spirals hours (balance-balance) of less than 0.3 s/°C·day, time, resistance, 1080−1375 MN/m(110−140 kgf/mm) |
For hair spirals clockworks |
44NKHTJU |
Alloy dispersion-hardening with low temperature coefficient of modulus of elasticity up to 180−200 °C (15·101/°C) |
For elastic sensing elements, operating at temperatures up to 200 °C |
V. Superconducting alloys | ||
35BT |
The critical current density in a transverse magnetic field is 3.2·10A/m at 4.2 K (3−6)·10A/cm. Well-deformed, can be produced from a thin wire, tape, superconducting composite materials with a large number of cores (up to 361) |
For superconducting screens magnetic fields, conductors for superconducting magnetic systems |
BTC-VD |
Critical current per unit width cold rolled strips with a thickness of 20 µm and a width of 90−100 mm not below (8,5−9,0)·10A/m, the superconducting transition temperature of 8.5−9.0 K, rupture strength 100−110 N/mm |
For superconducting topological generator switches in the system input and output energy of superconducting magnets; cryogenic structures |
70TM-VD |
The alloy has a narrow superconducting transition at 4.5 K, the width is not more than 0.2 K, the upper critical field (0,2±0,02) T, a high specific resistivity of 1.0 MCMC m, submenues with temperature (relative change it in the range -16 to +24 To less than 30%). Is made in the form of wire with diameter 0.25−0.35 mm in the copper shell |
For temperature sensors, liquid helium level gauges |
VI. Alloys with high electrical resistance | ||
H15YU5, Х23−5 |
Heat-resistant alloys in the oxidizing atmosphere containing sulfur and sulfur compounds, working in contact with high-alumina ceramics, are prone to sagging at elevated temperatures, can not withstand sudden dynamic loads. Alloy H15YU5 — substitute alloy Х13Ю4 |
For resistive elements, and for electric heating devices |
KH23JU5T, KH27JU5T |
Heat-resistant alloys in the oxidizing atmosphere containing sulfur and sulfur compounds, carbon, hydrogen, vacuum, working in contact with high-alumina ceramics are not prone to pitting corrosion, are prone to sagging at high temperatures can not withstand sudden dynamic loads |
For heating elements with maximum operating temperature of 1400 °C (KH23JU5), 1350 °C (KH27JU5T) in industrial and laboratory furnaces. Alloy KH23JU5T also used for household appliances and electrical devices of thermal action |
H15N60-H-VI, H15N60-H, CR20NI80-H-VI, CR20NI80-H |
Heat-resistant alloys in the oxidizing atmosphere, nitrogen, ammonia, unstable in the atmosphere containing sulfur and sulfur compounds, more heat-resistant than alloys zhelezomargantsevye |
For heating elements with maximum operating temperature of 1100 °C (H15N60-H), 1150 °C (H15N60-H-VI), 1200 °C (CR20NI80-H), 1220 °C (CR20NI80-H-VI) industrial furnaces and various electric heating devices. Alloys H15N60-H-VI and CR20NI80-H-VI is recommended for heaters electrothermal equipment of high reliability |
KHN70JU-N |
The heat resisting alloy in an oxidizing atmosphere, hydrogen, nitrogen-hydrogen blends, vacuum; more heat resistant than zhelezomargantsevye alloys |
For heaters with maximum operating temperature 1200 °C industrial furnaces |
KHN20JUS |
The heat resisting alloy in an oxidizing atmosphere, a vacuum. More heat resistant than Fe-alloys |
For heaters with maximum operating temperature of 1100 °C industrial furnaces and various electric heating devices |
Alloys with specified temperature coefficient of electrical resistance | ||
N50K10 |
The alloy has high constant temperature coefficient of electrical resistance up to 5.5·101/°C in the temperature range from plus 20 to plus 500 °C |
For temperature sensors and temperature-sensitive elements operating in the temperature range from 20 to 500 °C |
CR20NI80-VI, CR20NI80, H15N60 |
The alloys after special heat treatment have a temperature coefficient of electrical resistance in the temperature range from minus 60 to plus 100 °C about 0.9·10°Cand 1.5·10°C, respectively |
For the manufacture of critical parts vnutrivakuumnyh devices, connectors in electronics, for nepretsizionnyh resistors |
KH20N73JUM-VI, N80KHJUD-VI |
Alloy with low temperature coefficient of electric resistance and high specific electric resistance |
For precision resistors (alloy KH20N73JUM-VI for resistors with high stability) and of the strain gages |
(Changed edition, Rev. N 5).
Table 3
Brand thermobimetallic* |
Mark the components of thermobimetals** |
The main characteristic |
Approximate appointment |
VII. The thermostatic bimetallic | |||
ТБ200/113 (ТБ2013) |
75GND 36N |
Thermobimetals with a high coefficient of sensitivity (30−36)·10deg, with high specific electric resistance (the 1.08−1.18) Ω·mm/m |
For thermally-sensitive elements of the devices (thermal relays, fuses, thermometers, etc.) |
ТБ160/122 (ТБ1613) |
75GND 45NKH |
Thermobimetals with a high coefficient of sensitivity (23−28)·10deg, with high specific electric resistance (1,18−1,27) Ohm·mm/m |
For thermally-sensitive elements is heated by electric current devices (circuit breaker protection network, relay, etc.) |
ТБ148/79 (ТБ1523) | 20NG 36N |
Thermobimetals with a high rate of sensitivity (21−25)·10deg, with a high specific electrical resistance (0,77−0,82) Ohm·mm/m |
For thermally-sensitive elements of devices (compensators, relay protection, etc.) |
ТБ138/80 (ТБ1423) | 24NKH 36N |
Thermobimetals with a high rate of sensitivity (20−24)·10deg, with a high specific electrical resistance (0,77−0,84) Ohm·mm/m |
For thermally-sensitive elements of devices (relays, regulators, pulse sensors, fuses, etc.) |
ТБ129/79 (ТБ1323) |
19NKH 36N |
Thermobimetals with a high rate of sensitivity (18,5−22,5)·10deg, with a high specific electrical resistance (0,76−0,83) Ohm·mm/m |
For thermally-sensitive elements of devices (relays, regulators, pulse sensors, fuses, etc.) |
ТБ107/71 (ТБ1132) |
24NKH 42N |
Thermobimetals with an average sensitivity ratio (16−19)·10deg, with an average specific electrical resistance (0,68−0,74) Ohm·mm/m |
The same |
ТБ103/70 (ТБ1032) |
19NKH 42N |
Thermobimetals with the average response factor (15,5−18,5)·10deg, with an average specific electrical resistance (0,67−0,73) Ohm·mm/m |
For thermally-sensitive elements of devices (machines, network security, relay, etc.) |
ТБ73/57 (ТБ0831) |
24NKH 50N |
Thermobimetals with low coefficient sensitivity (10−13)·10deg, with an average specific electrical resistance (0,55−0,60) Ohm·mm/m |
For heat-sensitive items with small deflection |
ТБ103/70 (ТБ1032) | 19NKH 42N |
Thermobimetals with the average response factor (15,5−18,5)·10deg, with an average specific electrical resistance (0,67−0,73) Ohm·mm/m |
For thermally-sensitive elements of devices (machines, network security, relay, etc.) |
ТБ73/57 (ТБ0831) |
24NKH 50N |
Thermobimetals with low coefficient sensitivity (10−13)·10deg, with an average specific electrical resistance (0,55−0,60) Ohm·mm/m |
For heat-sensitive items with small deflection |
ТБ95/62 (ТБ1031, ТБ68) |
20NG 46Н |
Thermobimetals with the average response factor (15−18)·10deg, with an average specific electrical resistance (0,60−0,66) Ohm·mm/m |
For thermally-sensitive elements of devices (relays, fuses, etc.) |
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* The designation of the thermostatic bimetallic stamps made according to GOST 10533.
** In the numerator specified active layer, the denominator — the passive.
(Changed edition, Rev. N 2, 5).