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Alloy 01Х18Н40М5ГБ (ЭП753; ЧС116)

Designation

Name The value
Designation GOST Cyrillic 01Х18Н40М5ГБ
Designation GOST Latin 01X18H40M5GB
Transliteration 01H18N40M5GB
The chemical elements 01Cr18Ni40Cu5GeBe
Name The value
Designation GOST Cyrillic ЭП753
Designation GOST Latin EP753
Transliteration EhP753
The chemical elements -
Name The value
Designation GOST Cyrillic ЧС116
Designation GOST Latin ChC116
Transliteration ChS116
The chemical elements ЧPb116

Description

Alloy 01Х18Н40М5ГБ used: for the production of forged billets intended for production of high quality pipes applied in petrochemical industry, instrument manufacturing, specialty vehicles and nuclear power plants.

Standards

Name Code Standards
Bulls. Blanks. Slabs В31 TU 14-1-2097-77, TU 14-131-960-2001

Chemical composition

Standard C S P Mn Cr Si Ni Fe N V B Mo Nb Ce
TU 14-1-2097-77 ≤0.01 ≤0.015 ≤0.01 1-2 17.5-19 ≤0.1 39-41 The rest ≤0.015 0.05-0.2 ≤0.002 4.5-5 0.25-0.6 ≤0.05
According to TU 14-1-2097-77, the chemical composition is presented for the alloy 01Х18Н40М5ГБ-ИД (ЭП753-ИД), smelted by the vacuum induction melting method followed by vacuum-arc remelting. In the alloy, deviations in the content of elements are allowed: by carbon +0.0050%, for silicon +0.10%, for phosphorus + 0.5050%, for molybdenum + 0.30%, for nitrogen + 0.5050%. Cerium is introduced into the metal by calculation and chemical analysis is not determined. the residual impurity content should be (guaranteed by the manufacturer): cobalt ≤0.010%, copper ≤0.050%, arsenic ≤0.0050%, lead ≤ 0.00050%, cadmium ≤ 0.00050%, tin ≤0.0010%, zinc ≤ 0.0010%, antimony ≤0.0010%, bismuth ≤ 0.00050%, tantalum ≤0.0050%, titanium ≤0.050%. The deviation in the tantalum content is +0.0050%, titanium +0.050%.

Mechanical characteristics

Section, mm sT|s0,2, MPa σB, MPa d5, %
The billet forged on the other 14-1-2097-77. Austenization at 1050-1080 °C, air cooling
≥196 ≥539 ≥45
≥127 ≥412 ≥47
≥98 ≥343 ≥45

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

Technological properties

Name The value
Macrostructure and contamination In the macrostructure of the workpiece in the state of delivery should be free of cracks, gas bubbles, subcortical bubbles, turns brown, inclusions, delaminations, traces of shrinkage of the shell, visible to the naked eye. Layer-by-layer crystallization and the square of the increased travelmasti are not rejection symptom. The evaluation of contamination of metal non-metallic inclusions. The norm of non-metallic inclusions by the maximum score: - sulphides ≤ 1.0 points; - nitrides and carbonitrides point ≤ 1.5 points; - nitrides and carbonitrides stroke ≤ 1.5 points. The total number of oxygen inclusions (granules and globules of oxide spinels, silicates and silicate glasses) shall not exceed: a) from 1 to 2 inclusive divisions of the ocular scale in 2 sections - 50 inclusions on 6 sections - 150 inclusions; b) from 2 to 5, inclusive divisions of the ocular scale in 2 sections - 1 for on, - for 6 sections - 3 inclusions; C) larger than 3 divisions of the ocular scale are not allowed.
Features of production Tubular billet on the other 14-1-2097-77 made in accordance with the terms of the supply 01-1874-62.
Corrosion resistance Metal forged tube blank on the other 14-1-2097-77 must be able to withstand the test of susceptibility to intergranular attack according to the method of AM GOST 6032.

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