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Alloy 47ND (47ND-VI)

Alloy 36H Alloy 80HMV (80HMVX3) Alloy 58H (EI792) Alloy 52H (EI676; 52H-VI) Alloy 48NH (EI693) Alloy 47NHR Alloy 47NH (EI563) Alloy 47ND (47ND-VI) Alloy 47H3X Alloy 42NA-VI (EP333) Alloy 42H (EP318; 42NA) Alloy 40K27KhNM with tantalum Alloy 39H Alloy 38NKD (38NKD-VI) Alloy 36NH (EP713) Alloy 35NKT Alloy 35NKG (EK53) Alloy 34NKD Alloy 33HX3 (EP547) Alloy 33NK (33NK-VI) Alloy 32NKh3 (EP546) Alloy 32NKD (EI630A) Alloy 32NK (EP475) Alloy 31NH3G (EP545) Alloy 30NKD (30NKD-VI) Alloy 29NK (29NK-VI) Alloy 18KhTF Alloy 18KhMTF

Designation

Name The value
Designation GOST Cyrillic 47НД
Designation GOST Latin 47HD
Transliteration 47ND
The chemical elements 47NiД
Name The value
Designation GOST Cyrillic 47НД-ВИ
Designation GOST Latin 47HD-BI
Transliteration 47ND-VI
The chemical elements 47NiД-ВIr

Description

Alloy 47ND applies: for soldering with soft glass brands С93−4, С93−2, С95−2, С94- 1, C90−1, C90−2, etc.; to connect with ceramics and mica, for springs of hermetic contacts.

Note

Alloy with an average value of CTE.
Alloy with a CTE (9,0−11,0)·10-6 deg-1 in the temperature range from -70 to + 440 °C With high permeability and saturation induction of 1.4 T.

Standards

Name Code Standards
Classification, nomenclature and general norms В30 GOST 10994-74
Tapes В34 GOST 14080-78, TU 14-1-4312-87
Steel alloy wire В73 GOST 14081-78
Sectional and shaped rolling В32 GOST 14082-78, TU 14-11-245-88
Sheets and stripes В33 TU 14-1-3727-84
Bulls. Blanks. Slabs В31 TU 14-1-3904-84

Chemical composition

Standard C S P Mn Si Ni Fe Cu
GOST 10994-74 ≤0.05 ≤0.015 ≤0.015 ≤0.4 ≤0.3 46-48 The rest 4.5-5.5
Fe is the basis.

Mechanical characteristics

Section, mm σB, MPa d4
Cold-rolled strips of alloy 47ND brands; 47ND-VI according to GOST 14080-78 on delivery
0.3-2.5 490-610 ≥23
0.02-2.5 ≤930 -

Description mechanical marks

Name Description
Section Section
σB Limit short-term strength
d4 Elongation after rupture

Physical characteristics

Temperature r, кг/м3 a, 10-6 1/°С
20 8200 -
-100 - 109
-80 - 109
-60 - 108
-40 - 106
-20 - 105
100 - 102
200 - 99
300 - 98
400 - 99
500 - 104
600 - 114
700 - 122
800 - 129

A description of the physical symbols

Name Description
Е The normal elasticity modulus
l Coefficient of thermal conductivity
a The coefficient of linear expansion

Technological properties

Name The value
Inflection Point Temperature ≥420 °C

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