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Steel 42Х2ГСНМ (VC-1)

Steel 35KhSN3M1A (VKS-8) Steel 30Kh2GSN2VM (30Kh2GSN2M1; VL-1) Steel 30Kh2GSNVM (VL-1D) Steel 30Х2Н2СВМФА (VKS-3) Steel 30KhGSN2A (30KhGSNA) Steel 30KhGSN2MA (30KhGSNMA) Steel 30ХН3М1ФА (30ХН3М1Ф) Steel 30ХН3М2ФА (30ХН3М2Ф) Steel 32KhN8M1FK5A (VKS-6) Steel 34KhMA (34KhM) Steel 34KhN3MA (0KhN3M) Steel 35KhMA (35KhMAR) Steel 35KhN1M2FA Steel 35KHN3MFA (35KHN3MFAR) Steel 35ХС2Н3М1ФА (VKS-9) Steel 28ХНН3МФА (28ХН3МФ) Steel 36KHN3MFA (36KHN3MF) Steel 38Kh3SNMVFA (SP38) 38KhMFYUA steel 38KhN3MFA steel (38KhN3MF) 40GMFR steel Steel 40KhN2SVA (EI643) Steel 40KhN2SMA (EI643M) Steel 42Kh2GSNM (VKS-1) 43Kh3SNMVFA steel (SP43) Steel 45Г15Н9Х2ЮФ (EP769) 45Kh3NM2FA steel Steel АЦ28ХГН2АФБ Steel АЦ28ХГН3ФТ B2G steel X11MNAFB steel 20KhGSNM steel Steel 01N17K12M5T (EP845; VKS-240) Steel 02N18K9M5T (EP637A; VKS-210) Steel 03N18K8M5T (VKS-170; EK21) Steel 03N19K6M5TR (EP631) Steel 03Cr14H7V Steel 08Х15Н25Т2МФР (EP674) Steel 09Х16НМ2Д (EP887; VNS28) Steel 120G13 (EI256) 12Kh3GNMFBA steel Steel 15Х16Н3КАМФ2 (VNS-47; EK81) 15Kh2GMF steel 15Kh2NMFA steel Steel 16X16H3MAD (EP811; VSN21) Alloy 20ХГСН2МФА (DI107) Steel 28Kh3SNMVFA (SP28; EP326A) Steel 25Х12Н2В2М2Ф (EP311; VNS-6) Steel 25Х20Н9В2М (EP466) Steel 25Kh2GNTA Steel 25Х2ГНТРА Steel 25Х2Н4МФА Steel 25Kh2NMF (25Kh2NMFA) Steel 25KhGSNMA Steel 25KhN3MFA (25KhN3MFAR) Steel 25ХСНВФА (VP25) Steel 26ХН3М2ФА (26ХН3М2ФАA) Steel 26KhN3MF (26KhN3MFA) Steel 26KhN4MF (26KhN4MFA) Steel 27ХН3М2ФА (27ХН3М2Ф) Steel 27ХН3МФА (27ХН3МФ)

Designation

Name The value
Designation GOST Cyrillic 42Х2ГСНМ
Designation GOST Latin 42X2GCHM
Transliteration 42H2GSNM
The chemical elements 42Cr2MnСНMo
Name The value
Designation GOST Cyrillic ВКС-1
Designation GOST Latin BKC-1
Transliteration VKS-1
The chemical elements WCoС-1

Description

42Х2ГСНМ steel is used: for the production of forging ingots; solid-rolled rings for different purposes.

Note

High-strength steel.

Standards

Name Code Standards
Classification, nomenclature and general norms В20 OST 1 90005-91
Sectional and shaped rolling В32 OST 1 92049-76
Bulls. Blanks. Slabs В31 TU 14-1-1083-74, TU 24-1-1707-78
Sheets and stripes В33 TU 14-1-4461-88, TU 14-1-711-73

Chemical composition

Standard C S P Mn Cr Si Ni Fe V Mo
TU 14-1-1083-74 0.38-0.43 ≤0.011 ≤0.015 0.75-1 1.5-2 0.9-1.2 0.5-0.8 The rest 0.03-0.1 0.4-0.6
Fe is the basis.
According to TU 14-1-1083-74 the chemical composition is presented for steel grade VKS-1-VD. The total content of sulfur and phosphorus in the steel should not be more than 0.022%. The residual copper content should not be more than 0.15%. The content of manganese in the initial melting should be 1.20-1.50%. If the content of manganese in the original melting does not meet the specified limits, it is allowed to conduct its control after vacuum-arc remelting according to the following procedure: after stripping the corona of the ingot, the chips are taken from three places along the height of the ingot. The shavings are averaged and analyzed for manganese. Its content should be 0,75-1,00%. Control of manganese is made on the first and last ingots after vacuum-arc remelting.
According to TU 14-1-4461-88, the chemical composition of steel VKS-1 must comply with the standards specified in Table 2 (Appendix 1), sent on request by the Central Research Institute of Chemical Technology named after Bardin. The sulfur content of sulfur is not more than 0.011%, phosphorus is not more than 0.015%, while the total content of sulfur and phosphorus should not be more than 0.022%. The residual copper content should not be more than 0.15%. With the consent of the consumer, it is allowed - up to 0.20%. In the finished sheets the following deviations in chemical composition from the norms indicated in Table 2 are allowed: carbon + 0.02 / -0.010%; tungsten ± 0.10%; manganese, silicon, chromium and nickel ± 0.050%; molybdenum ± 0.030%; vanadium +0.020%. At the request of the customer, specified in the order, the sheets are supplied from the metal of electroslag remelting (VKS-1Sh), while the content in steel BKC-1Sh sulfur - no more than 0.006%, phosphorus - no more than 0.015%, with the total content of sulfur and phosphorus - not more than 0.020%.

Mechanical characteristics

Section, mm σB, MPa d5, % y, % kJ/m2, кДж/м2 HRC
Gradation of performance properties of the finished heat-treated parts for OST 1 90005-91
- 1860-2060 - - - 51.5-53.5
Ring forged in OST 1 92049-76. Annealing in air or in oil with 930-950 °C + Vacation at 200-280 °C, air cooling
≥1860 ≥6 ≥20 ≥294 -
The leaves of g/K and x/K on the other 14-1-4461-88. Hardening in air, 930-950 °C + Vacation at 200-280 °C, air cooling (heating for hardening must eliminate the carburization and decarburization, the samples transverse)
≥1860 ≥7 - - -

Description mechanical marks

Name Description
Section Section
σB Limit short-term strength
d5 Elongation after rupture
y The relative narrowing
kJ/m2 Toughness
HRC Rockwell hardness (indenter diamond spheroconical)

Technological properties

Name The value
Weldability The steel is welded in inert gas welding wire SV-20ХСНВФАВД.

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