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. |
