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Alloy KHN75MBTJU (ЭИ602)

Designation

Name The value
Designation GOST Cyrillic ХН75МБТЮ
Designation GOST Latin XH75MBTJu
Transliteration HN75MBTYu
The chemical elements CrNi75CuBeTeAl
Name The value
Designation GOST Cyrillic ЭИ602
Designation GOST Latin EI602
Transliteration EhI602
The chemical elements -

Description

Alloy KHN75MBTJU used: for the manufacture of cold-rolled strip; sheet metal parts of turbines parts of gas pipeline systems, instruments, parts of combustion chambers with a limited service life at temperatures up to +950 °C; the welding wire used for welding parts and welding of steel structures in energy engineering; welding electrodes.

Note

Alloy, heat-resistant and heat-resistant Nickel-based.
The recommended maximum operating temperature for limited time +1050 °C, for a long time +950 °C.
Temperature intense scaling in air +1050−1100 °C.

Standards

Name Code Standards
Sheets and stripes В23 GOST 19904-90
Sheets and stripes В33 GOST 24982-81, TU 14-1-1130-74, TU 14-1-146-71, TU 14-1-1747-76, TU 14-1-4296-87
Classification, nomenclature and general norms В30 GOST 5632-72
Metal forming. Forgings В03 OST 1 90110-73
Bulls. Blanks. Slabs В31 OST 3-1686-90, TU 14-1-1214-75
Sectional and shaped rolling В32 TU 14-1-3721-84, TU 14-11-245-88
Tapes В34 TU 14-1-927-74
Welding and cutting of metals. Soldering, riveting В05 TU 14-1-997-74, TU 14-1-997-2012

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu Al Ti Mo Nb
TU 14-1-1747-76 ≤0.1 ≤0.012 ≤0.02 ≤0.4 19-22 ≤0.8 The rest ≤3 ≤0.07 0.35-0.75 0.35-0.75 1.8-2.3 0.9-1.3
TU 14-1-4296-87 ≤0.1 ≤0.012 ≤0.02 ≤0.4 19-22 ≤0.8 The rest ≤3 ≤0.3 0.35-0.75 0.35-0.75 1.8-2.3 0.9-1.3
GOST 5632-72 ≤0.1 ≤0.012 ≤0.02 ≤0.4 19-22 ≤0.8 The rest ≤3 ≤0.3 0.35-0.75 0.35-0.75 1.8-2.3 0.9-1.3
Ni is the basis.
According to TU 14-1-927-74 deoxidizers (cerium, calcium, barium) are introduced into the metal by calculation and chemical analysis is not determined.

Mechanical characteristics

Section, mm sT|s0,2, MPa σB, MPa d5, % y, %
Cold-rolled steel strip of 0.2-1.2 mm on the other 14-1-927-74. Quenching in water or air from 1050-1080 °C
- - ≤932 ≥40 -
Steel cold-rolled sheet (0.8 to 3.9 mm) and HR (2.0 to 11.0 mm) in the delivery state according to GOST 24982-81. Quenching in water, under a water shower or air 1060-1100 °
≤3.9 - ≤900 ≥40 -
≤3.9 - ≥245 ≥45 -
4-11 - ≥245 ≥40 -
4-11 - ≤930 ≥40 -
Rolled steel. Annealing in air from 1050-1080 °C
60 ≥400 ≥860 ≥43 ≥37

Description mechanical marks

Name Description
Section Section
sT|s0,2 Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
σB Limit short-term strength
d5 Elongation after rupture
y The relative narrowing

Physical characteristics

Temperature Е, ГПа r, кг/м3 l, Вт/(м · °С) a, 10-6 1/°С
20 190 8300 - -
400 165 - 185 15
500 163 - 202 158
600 150 - 223 165
700 137 - 244 181
100 - - 1345 124
200 - - 153 134
300 - - 167 142

A description of the physical symbols

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

Technological properties

Name The value
Weldability without restrictions

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