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Steel 16Х16Н3МАД (ЭП811; ВСН21)

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 16Х16Н3МАД
Designation GOST Latin 16X16H3MAD
Transliteration 16H16N3MAD
The chemical elements 16Cr16Н3MoNCu
Name The value
Designation GOST Cyrillic ЭП811
Designation GOST Latin EP811
Transliteration EhP811
The chemical elements -
Name The value
Designation GOST Cyrillic ВСН21
Designation GOST Latin BCH21
Transliteration VSN21
The chemical elements WСН21

Description

16Х16Н3МАД steel is used: for the production of highly loaded parts of the aviation industry by cold machining.

Note

Corrosion-resistant steel.

Standards

Name Code Standards
Classification, nomenclature and general norms В20 OST 1 90005-91
Sectional and shaped rolling В32 TU 14-1-2359-78, TU 14-1-3791-84

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu N Mo
TU 14-1-3791-84 0.13-0.19 0.07-0.15 0.06-0.12 0.6-1 15-16.5 ≤0.6 2-4 The rest 1-1.5 0.05-0.1 1.4-1.9
Fe is the basis.
According to TU 14-1-2359-78 the following deviations from the established norms of chemical composition in finished products are allowed: - for copper ± 0.10%, - for chromium ± 0.20%. Permissible deviations for other elements and the content of residual elements are in accordance with GOST 5632.
According to TU 14-1-3791-84 Chemical analysis is given for steel grade 16H16N3MAD (EP811). The following deviations from the chemical composition are permissible: chroma ± 0.20%, copper ± 0.10%, nitrogen ± 0.010%. Permissible deviations in other elements and in the content of residual elements are in accordance with GOST 5632.

Mechanical characteristics

Section, mm σB, MPa d5, % kJ/m2, кДж/м2 Brinell hardness number, MPa HRC
Gradation of performance properties of the finished heat-treated parts for OST 1 90005-91
- 1080-1270 - - - 33-39
- 1620-1810 - - - 44-48
The bars as supplied on the other 14-1-3791-84
150 930-1180 - 490-690 241-321 -
Bars on the other 14-1-3791-84. The longitudinal samples. Quenching in oil with 1060-1070 °C + cold Treatment at -70°C for 2 hours + Vacation at 150-200 °C (exposure 2 hours)
1620-1770 8-14 390-590 - 44-48

Description mechanical marks

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

Technological properties

Name The value
Macrostructure and contamination In the macrostructure of steel bars on the other 14-1-3791-84 should not be shrinkage and rychlosti, bubbles, cracks and foreign metal and slag inclusions, crusts, delamination and placenow visible without using the magnifying devices.

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