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Steel 30ХН3М2ФА (30ХН3М2Ф)

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 30ХН3М2ФА
Designation GOST Latin 30XH3M2FA
Transliteration 30HN3M2FA
The chemical elements 30CrН3Mo2V
Name The value
Designation GOST Cyrillic 30ХН3М2Ф
Designation GOST Latin 30XH3M2F
Transliteration 30HN3M2F
The chemical elements 30CrН3Mo2V

Description

30ХН3М2ФА steel is used: for the manufacture of blanks of disks of steam turbines with a working operating temperature up to +350 °C.

Standards

Name Code Standards
Metal forming. Forgings В03 TU 108-1028-81

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu V Mo
TU 108-1028-81 0.26-0.32 ≤0.022 ≤0.025 0.2-0.5 1.2-1.7 ≤0.37 3-3.5 The rest ≤0.25 0.1-0.2 0.4-0.65
Fe is the basis.
According to TU 108-1028-81, the chemical composition is given for steel grade 30ХН3М2ФА. In the workpieces, deviations in the content of the elements indicated in the table are allowed: carbon ± 0.010%, silicon + 0.030%. In the manufacture of blanks with discs with hub heights from 450 to 650 mm, the content of phosphorus and sulfur in steel should not be more than 0.018% of each; For metal VDP and ELP, the deviation of manganese content +0.10% is allowed. In the ESR steel, the sulfur content should not be more than 0.015%. When casting steel without evacuation, for the manufacture of disc blanks with a hub height of more than 300 mm, hydrogen content in the metal must be determined. The results of determination of the hydrogen content are not acceptance-delivery and, at the request of the consumer, are to be entered in the procurement certificate.

Mechanical characteristics

Section, mm sT|s0,2, MPa σB, MPa d5, % y, % kJ/m2, кДж/м2 Brinell hardness number, MPa
Forged blanks of disks of steam turbines on the other 108-1028-81 (in the delivery condition specified strength; in cross-section, if regulated, see the recommended height of the hub)
≤550 664-833 ≥815 ≥12 ≥40 ≥490 -
Forgings. Annealing in air with 850-870 °C + Vacation at 580-650 °C, air cooling
500 ≥750 ≥900 ≥12 ≥35 ≥490 277-321

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

Physical characteristics

Temperature r, кг/м3
20 7800

A description of the physical symbols

Name Description
Е The normal elasticity modulus
r Density
l Coefficient of thermal conductivity
R UD. the resistivity

Technological properties

Name The value
Weldability Difficult weldability.
Propensity to temper brittleness Malosolone.
Forging temperature Start - 1200 °C, the end of - 900 °C.
Flock-sensitive sensitivity A highly sensitive.

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