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Alloy 48NKH (ЭИ693)

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 48НХ
Designation GOST Latin 48HX
Transliteration 48NH
The chemical elements 48NiCr
Name The value
Designation GOST Cyrillic ЭИ693
Designation GOST Latin EI693
Transliteration EhI693
The chemical elements -

Description

Alloy 48NKH used: for the manufacture of vacuum-tight junctions with thermometric glass brands 16Ш, С72−4, etc.

Note

Alloy with an average value of CTE.
Alloy with a CTE (8,5−9,5)·10-6 deg-1 in the temperature range from -70 to + 450 °C.

Standards

Name Code Standards
Classification, nomenclature and general norms В30 GOST 10994-74
Tapes В34 GOST 14080-78
Steel alloy wire В73 GOST 14081-78
Sectional and shaped rolling В32 GOST 14082-78, TU 14-11-245-88
Pipes steel and connecting parts to them В62 GOST 14162-79, TU 14-159-165-87
Bulls. Blanks. Slabs В31 TU 14-1-3904-84, TU 14-1-613-73
Pipes from ferrous metals and alloys cast and connecting parts to them В61 TU 14-3-225-74

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu
GOST 10994-74 ≤0.05 ≤0.015 ≤0.015 0.3-0.6 0.7-1 ≤0.3 48-49.5 The rest ≤0.2
Fe is the basis.

Mechanical characteristics

Section, mm σB, MPa d5, %
Tubes of small dimensions (capillary) heat-treated or cold-worked in the state of delivery according to GOST 14162-79
≥392 ≥40
Cold-rolled steel strip according to GOST 14080-78 on delivery
0.1-2.5 ≤930 -

Description mechanical marks

Name Description
Section Section
σB Limit short-term strength
d5 Elongation after rupture

Physical characteristics

Temperature r, кг/м3 a, 10-6 1/°С
20 8350 -
100 - 86
200 - 86
300 - 85
400 - 85
500 - 92
600 - 107
700 - 112
800 - 119

A description of the physical symbols

Name Description
Е The normal elasticity modulus
l Coefficient of thermal conductivity
R UD. the resistivity

Technological properties

Name The value
Inflection Point Temperature ≥410 °C

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