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Steel 35ХН3МФА (35ХН3МФАР)

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 35ХН3МФА
Designation GOST Latin 35XH3MFA
Transliteration 35HN3MFA
The chemical elements 35CrН3MoV
Name The value
Designation GOST Cyrillic 35ХН3МФАР
Designation GOST Latin 35XH3MFAP
Transliteration 35HN3MFAR
The chemical elements 35CrН3MoVNB

Description

35ХН3МФА steel is used: for the production of forged billets for rotors of troubleproof; rings for turbine generators, rotor shafts and flywheels forged shafts, turbine generator rotors, shafts and rotors of gas turbines and compressors and most critical highly loaded parts operating at temperatures up to 400 °C; heavily loaded parts of pipeline valves; cylinders with a volume of 400 liters, are designed for storing compressed air under pressure of 400 kgf/cm2 at a temperature of from minus 50°to plus 60 °C.

Note

Structural steel high-quality hromonikelemolibdenovyh.

Standards

Name Code Standards
Sheets and stripes В23 GOST 103-2006
Sectional and shaped rolling В32 GOST 1051-73, GOST 7417-75, GOST 8559-75, GOST 8560-78, GOST 14955-77
Sectional and shaped rolling В22 GOST 1133-71, GOST 2590-2006, GOST 2591-2006, GOST 2879-2006
Metal forming. Forgings В03 GOST 8479-70, TU 3-896-78, TU 108-11-910-87, TU 108.11.923-87
Bulls. Blanks. Slabs В31 TU 108.11.889-87
Cylinders made of steel В66 TU 14-3-883-79

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu V Mo
TU 3-896-78 0.3-0.4 ≤0.025 ≤0.025 0.25-0.5 1.1-1.4 0.17-0.37 2.75-3.25 The rest ≤0.2 0.08-0.15 0.3-0.4
TU 14-3-883-79 0.34-0.39 ≤0.022 ≤0.022 0.25-0.5 1.1-1.4 0.22-0.37 2.75-3.25 The rest ≤0.3 0.08-0.15 0.3-0.4
TU 108.11.923-87 0.25-0.35 ≤0.015 ≤0.015 0.2-0.6 1.1-1.55 ≤0.37 2.6-3.55 The rest ≤0.2 0.05-0.15 0.3-0.7
TU 108.11.889-87 0.3-0.35 ≤0.02 ≤0.02 0.2-0.4 1.1-1.4 ≤0.37 2.75-3.25 The rest ≤0.3 0.08-0.15 0.3-0.4
Fe is the basis.
According to TU 14-3-883-79 the chemical composition is given for the steel of rotary grade 35ХН3МФА. Permissible deviations in chemical composition: carbon ± 0.010%, chromium ± 0.050%, manganese ± 0.020%, molybdenum ± 0.020%, vanadium ± 0.020%, nickel -0.10%, silicon +0.020%, On sulfur and phosphorus +0.0050% of each.
According to TU 3-896-78 the chemical composition is given for the rotary grade steel 35ХН3МФАР.
According to TU 108.11.923-87, the chemical composition is given for the steel of the rotary grade 35ХН3МФА. The total content of S + P≤0,025 for smelting by a duplex process and in electric furnaces. The content of S≤0.010%, P≤0.010% after out-of-furnace refining with a total content of S + P≤0,020%. The content of S≤0.012%, P≤0.012% after out-of-furnace evacuation (ODS) with a total content of S + P≤0,020%.
According to TU 108.11.889-87, deviations in chemical composition are allowed: by carbon ± 0.010%, by chroma ± 0.050%, by manganese ± 0.020%, by molybdenum ± 0.020%, by vanadium ± 0.020%, by nickel -0.10% , for silicon +0.020%. The total content of sulfur and phosphorus should not be more than 0.036% for smelting by a duplex process and in an electric furnace. The sulfur and phosphorus content after the use of the out-of-furnace refining and evacuation unit (OVPV) should not be more than 0.010% and 0.012%, respectively, for a sum of sulfur and phosphorus not more than 0.020%. The steel shall be melted according to the manufacturer's technical documentation using the UVRB unit. It is allowed to melt steel in an open-hearth furnace by a duplex process or in the main electric arc furnace.

Mechanical characteristics

Section, mm sT|s0,2, MPa σB, MPa d5, % y, % kJ/m2, кДж/м2
Steel cylinders on the other 14-3-883-79
≥980 ≥1128 ≥11 ≥45 ≥686
Forged billet rings for turbine generators of thermal power plants up to 500 MW I-VIII categories THAT 3-896-78 (samples tangential)
- 294 491 16 30 294
Steel cylinders on the other 14-3-883-79
≥980 ≥1098 ≥11 ≥45 ≥686
Forged billet rings for turbine generators of thermal power plants up to 500 MW I-VIII categories THAT 3-896-78 (samples tangential)
- 392 589 16 30 491
For billet flywheels (indicates the direction and place the clippings of the sample) THAT 108.11.923-87
- 637 735 16 45 588
Forged billet rings for turbine generators of thermal power plants up to 500 MW I-VIII categories THAT 3-896-78 (samples tangential)
- 491 687 16 30 392
For billet flywheels (indicates the direction and place the clippings of the sample) THAT 108.11.923-87
- 637 735 17 50 686
Forged billet rings for turbine generators of thermal power plants up to 500 MW I-VIII categories THAT 3-896-78 (samples tangential)
- 589 765 16 35 491
For billet flywheels (indicates the direction and place the clippings of the sample) THAT 108.11.923-87
- 637 735 16 45 588
Forged billet rings for turbine generators of thermal power plants up to 500 MW I-VIII categories THAT 3-896-78 (samples tangential)
- 687 834 14 35 491
Billet rotor of the turbogenerator of 1000 MW (indicates the direction and place the clippings of the sample) THAT 108.11.923-87
- 666-813 764 16 45 490
Forged billet rings for turbine generators of thermal power plants up to 500 MW I-VIII categories THAT 3-896-78 (samples tangential)
- 785 932 13 35 392
Billet rotor of the turbogenerator of 1000 MW (indicates the direction and place the clippings of the sample) THAT 108.11.923-87
- 666-813 764 17 50 686
Forged billet rings for turbine generators of thermal power plants up to 500 MW I-VIII categories THAT 3-896-78 (samples tangential)
- 883 1010 12 30 392
Billet rotor of the turbogenerator of 1000 MW (indicates the direction and place the clippings of the sample) THAT 108.11.923-87
- 666-813 764 16 45 588
Forged billet rings for turbine generators of thermal power plants up to 500 MW I-VIII categories THAT 3-896-78 (samples tangential)
- 981 1079 11 30 294
Billet rotor of the turbogenerator with the capacity of 1200 MW (indicates the direction and place the clippings of the sample) THAT 108.11.923-87
- 666-813 764 16 45 490
Forged billet rotors of turbine generators, thermal power plants up to 500 MW III-VI categories on the other 3-896-78 (indicate the cutting direction of sample)
- 540 687 19 55 1177
Billet rotor of the turbogenerator with the capacity of 1200 MW (indicates the direction and place the clippings of the sample) THAT 108.11.923-87
- 666-813 764 17 50 686
Forged billet rotors of turbine generators, thermal power plants up to 500 MW III-VI categories on the other 3-896-78 (indicate the cutting direction of sample)
- 540 687 17 45 785
Billet rotor of the turbogenerator with the capacity of 1200 MW (indicates the direction and place the clippings of the sample) THAT 108.11.923-87
- 666-813 764 16 45 588
Forged billet rotors of turbine generators, thermal power plants up to 500 MW III-VI categories on the other 3-896-78 (indicate the cutting direction of sample)
- 638 785 18 55 981
Billet rotor of the turbogenerator by power 800 MW (indicates the direction and place the clippings of the sample) THAT 108.11.923-87
- 637 735 16 45 588
Forged billet rotors of turbine generators, thermal power plants up to 500 MW III-VI categories on the other 3-896-78 (indicate the cutting direction of sample)
- 638 785 17 45 687
Billet rotor of the turbogenerator by power 800 MW (indicates the direction and place the clippings of the sample) THAT 108.11.923-87
- 637 735 17 50 686
- 637 735 16 45 588

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
kJ/m2 Toughness

Technological properties

Name The value
Macrostructure and contamination In the macrostructure of steel shall not be cavities, bubbles, delaminations, cracks, inclusions and placenow visible without magnification.

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