Alloy 01Х18Н40М5ГБ (ЭП753; ЧС116)

Designation

Name	The value
Designation GOST Cyrillic	01Х18Н40М5ГБ
Designation GOST Latin	01X18H40M5GB
Transliteration	01H18N40M5GB
By chemical elements	01Cr18Ni40Cu5GeBe

Name	The value
Designation GOST Cyrillic	ЭП753
Designation GOST Latin	EP753
Transliteration	EhP753
By chemical elements	-

Name	The value
Designation GOST Cyrillic	ЧС116
Designation GOST Latin	ChC116
Transliteration	ChS116
By 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
Blanks. Of the workpiece. 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	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 properties

Section, mm	s_T\|s_0,2, MPa	σ_U, 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
s_T\|s_0,2	Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
σ_U	Limit short-term strength
d₅	Elongation after rupture

Technological properties

Name	The value
Macrostructure and pollution	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.
Particularities of production of goods	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.