Alloy 52N (ЭИ676; 52N-VI)
Designation
| Name |
The value |
| Designation GOST Cyrillic |
52Н |
| Designation GOST Latin |
52H |
| Transliteration |
52N |
| The chemical elements |
52Ni |
| Name |
The value |
| Designation GOST Cyrillic |
ЭИ676 |
| Designation GOST Latin |
EI676 |
| Transliteration |
EhI676 |
| The chemical elements |
- |
| Name |
The value |
| Designation GOST Cyrillic |
52Н-ВИ |
| Designation GOST Latin |
52H-BI |
| Transliteration |
52N-VI |
| The chemical elements |
52Ni-ВIr |
Description
Alloy 52N is used: for the manufacture of preforms, wire and cold-drawn shaped profiles; connections with soft glass grades C90−1, C90−2, С93−2, С94- 1, С95−2 and С93−4.
Note
Alloy with an average value of CTE.
Alloy with a CTE (11,0−11,5)·10-6 deg-1 in the temperature range from -70 to + 550 °C with high permeability and saturation induction of 1.5 T.
Standards
| Name |
Code |
Standards |
| Classification, nomenclature and general norms |
В30 |
GOST 10994-74 |
| Tapes |
В34 |
GOST 14080-78, TU 14-1-2251-77 |
| Steel alloy wire |
В73 |
GOST 14081-78, TU 14-1-2005-77, TU 14-1-4602-89 |
| Sectional and shaped rolling |
В32 |
GOST 14082-78, TU 14-11-245-88 |
| Bulls. Blanks. Slabs |
В31 |
TU 14-1-3904-84, TU 14-1-4624-89 |
Chemical composition
| Standard |
C |
S |
P |
Mn |
Cr |
Si |
Ni |
Fe |
Cu |
Al |
Ti |
Co |
| TU 14-1-4624-89 |
≤0.015 |
≤0.005 |
≤0.006 |
≤0.4 |
≤0.1 |
≤0.05 |
51.5-52.5 |
The rest |
≤0.02 |
≤0.02 |
≤0.01 |
≤0.05 |
| GOST 10994-74 |
≤0.05 |
≤0.015 |
≤0.015 |
≤0.4 |
≤0.2 |
≤0.2 |
51.5-52.5 |
The rest |
≤0.2 |
- |
- |
- |
Ni is the basis.
According to TU 14-1-4624-89, the chemical composition is given for the 52N-VP alloy. Requirements for the content of cobalt, silicon, aluminum and titanium are optional. The oxygen content in the alloy should not be more than 0.0080% and is controlled in every tenth melting.
According to GOST 10994-74 the chemical composition is given for the alloy grade 52H.
Physical characteristics
| Temperature |
r, кг/м3 |
a, 10-6 1/°С |
| 20 |
8200 |
- |
| -100 |
- |
107 |
| -80 |
- |
107 |
| -60 |
- |
105 |
| -40 |
- |
105 |
| -20 |
- |
105 |
| 100 |
- |
104 |
| 200 |
- |
105 |
| 300 |
- |
106 |
| 400 |
- |
107 |
| 500 |
- |
105 |
A description of the physical symbols
| Name |
Description |
| r |
Density |
| a |
The coefficient of linear expansion |
Technological properties
| Name |
The value |
| Inflection Point Temperature |
≥470 °C |
