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Steel 16Х12МВСФБР (ЭП823)

Steel 1Х14Н14В2М (ЭИ257) Steel 13Х15Н4АМ3 (EP310; VNS-5) Steel 15X11MF (1X11MF) Steel 15Х12ВНМФ (ЭИ802) Steel 15Х12Н2МВФАБ (EP517) Steel 15Х16К5Н2МВФАБ (EP866; VNS-30) Steel 16Х11Н2В2МФ (ЭИ962А) Steel 16Х12ВМСФ5Р Steel 16X12MVSFBR (EP823) 18X11MNFB steel (EP291) Steel 18Х12ВМБФР (ЭИ993) Steel 18Х14Н4АМ3 (VNS-43) 18Kh15N3M steel (DI1) Steel 13Х11Н2В2МФ (ЭИ961; ВНС-33) Steel 20X12VNMF (EP428; 20X12VNMF-S (EP427-S)) Steel 25Х13Н2ВМФ (EP65; 2Х13НВМФ) Steel 25Х18Н10В2 (EP610) Steel 25Х18Н8В2 (ЭИ946) Steel 31Х19Н9МВБТ (ЭИ572) Steel 37Х12Н8Г8МФБ (ЭИ481) Steel 40Х15Н7Г7Ф2МС (ЭИ388) Steel 42Х11М3Ф (EP890) Steel 45Х14Н14В2М (ЭИ69) Steel 45Х14Н14СВ2М (ЭИ240) Steel X12H20T2P (EI696A) X14H8M2 steel (EP509) Cr18N13C2AMVF5P steel Steel 09Х14Н19В2БР1 (ЭИ726) Steel 01X19Yu3Bch (EP904; 02X18Yu3B) Steel 04Х15Н11С3МТ Steel 06X14H5MF Steel 06Х16Н15М3Б (ЭИ847; 06Х16Н15М3Б) 06X16H15M3K steel Steel 07Х25Н16АГЦ (EP781) Steel 08X14MF Steel 08Х15Н24В4ТР (EP164) Steel 08Х15Н25М3ТЮБ Steel 08Х15Н5Д2Т (EP410; VNS-2; EP225) Steel 08Х16Н13М2Б (ЭИ680) Steel 09X14H16B (EI694) Steel 09X14H19V2BR (EI695R) Steel 13Х14Н3В2ФР (ЭИ736; 513Л) Steel 09Х16Н13М3 (ЭИ592) Steel 09Х16Н15М3Б Steel 09Х16Н16МВ2БР (ЭП184; Х16Н16МВ2БР) Steel 09Х16Н7М2Ю (ЗИ65) 10GN2MFA steel Steel 10Х11Н20Т3Р (ЭИ696) Steel 10Х11Н23Т3МР (ЭП33; ЭЦ696) Steel 10Х12Н22Т3МРУ (EP33U) Steel 10Х15Н28В2М4Б (EP485) Steel 10Х15Н9С3Б1 (EP302) 10Х9НСМФБ steel Steel 11Х11Н2В2МФ (ЭИ962)

Designation

Name The value
Designation GOST Cyrillic 16Х12МВСФБР
Designation GOST Latin 16X12MBCFBP
Transliteration 16H12MVSFBR
The chemical elements 16Cr12MoWСVNbB
Name The value
Designation GOST Cyrillic ЭП823
Designation GOST Latin EP823
Transliteration EhP823
The chemical elements -

Description

16Х12МВСФБР steel is used: for the manufacture of extremely thin-walled tubes; bars with special surface finish diameter mm 6−14; parts machinery for special purposes.

Standards

Name Code Standards
Sectional and shaped rolling В32 TU 14-1-1135-74, TU 14-131-1126-2013
Bulls. Blanks. Slabs В31 TU 14-1-925-74
Pipes steel and connecting parts to them В62 TU 14-3-349-75

Chemical composition

Standard C S P Mn Cr Si Ni Fe V B Mo Nb W Ce
TU 14-1-925-74 0.14-0.18 ≤0.01 ≤0.015 0.5-0.8 10-12 1-1.3 0.5-0.8 The rest 0.2-0.4 ≤0.006 0.6-0.9 0.2-0.4 0.5-0.8 ≤0.1
Fe is the basis.
According to TU 14-1-925-74, the chemical composition is presented for 16Х12МВССБР-Ш (ЭП823-Ш) and 16Х12МВСФБР-П (ЭП823-П) steels, smelted by electroslag and plasma arc remelting methods. The content of boron and cerium is indicated by calculation and chemical analysis is not determined. The content of titanium and nitrogen is not more than 0.050% of each. The aluminum content is not more than 0.050%, the deviation along aluminum is not a defective feature. If all requirements of the technical specification are satisfied, deviations in chemical composition are allowed in accordance with GOST 10500, as well as deviations in sulfur and phosphorus +0.0050% each, in nickel ± 0.050%.
According to TU 14-131-1126-2013 the chemical composition is presented for steel grade 16Х12МВСФБР-Ш (ЭП823-Ш). The mass fraction of residual aluminum, titanium, nitrogen content should not exceed 0.050% of each. The results of control are optional, but are entered into the certificate. Boron is introduced into steel by calculation and chemical analysis is not determined. The quality document indicates the calculated value of the mass fraction of boron. REM (cerium + lanthanum) are introduced by calculation at 0.10%. At the same time, the mass fraction of the REM is not determined by chemical analysis. The quality document indicates the calculated value of the mass fraction of the REM. Permissible deviations in chemical composition - in accordance with GOST 5632, as well as nickel ± 0.050%, sulfur and phosphorus + 0. 0050% each.

Mechanical characteristics

Section, mm sT|s0,2, MPa σB, MPa d5, % y, %
Bars with special surface finish on the other 14-131-1126-2013. The longitudinal samples. Annealing in air 1040-1080 °C (aging for 1 hour) + Holiday at 680-730 °C (delay 2-3 hours), air cooling
≥590 ≥780 ≥16 ≥50
- ≥220 ≥17 ≥55
Tubular billet on the other 14-1-925-74. Annealing in air 1040-1080 °C (aging for 1 hour) + Holiday at 680-730 °C (delay 2-3 hours), air cooling (longitudinal samples)
20-25 ≥590 ≥785 ≥16 ≥50
20-25 - ≥216 ≥18 ≥55

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

Technological properties

Name The value
Pressure treatment Of forging of billets on the other 14-1-925-74 must be at least 3.5.
Macrostructure and contamination In the macrostructure of billets is not allowed traces of shrinkage, porosity, bubbles, cracks, inversions brown, inclusions visible to the naked eye. The permissible defects of the macrostructure shall not exceed: Central porosity - 1 point; - point heterogeneity - 1 point; - phase separation in the square - 1 point. In the metal tube blank is allowed the presence of non-metallic inclusions by the maximum score (max): - sulphides (C)- 1.0 points, oxides stroke (OS) - 2.0 points; - point oxides (ON) - 2.0 points; - point of silicates, fragile (CT, CX) - 2.0 points, silicates plastic (SP) - 1.0 points, silicates nedeterminata (CH) - 1.0 points. Additionally controlled the content of the nitrides and carbonitrides. The inspection results shall be recorded in the certificate.

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