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Steel 12KH25N5TMFL (10Х25Н5ТМФЛ)

Steel 03Х12Н5М6К13Л (VNL-8) Steel 05Х18АН5ФЛ Steel 05Х18АН6М2ФЛ Steel 06Х12Н3ДЛ Steel 06Х17Н10Г2С2Л (VNL-12) Steel 07KH17N16TL Steel 07KH18N10G2S2M2L Steel 07Х18Н9Л (5Х18Н9Л) Steel 07Х20Н25М3Д2ТЛ 07Х21Н9С2М steel (WFW-4) Steel 07Х24Н8М2Д3Л (on-1) Steel 07ХН25МДТЛ Steel 08G2DNFL Steel 08KH12N4GSML Steel 08Х13ГДЛ Steel 08Х13Л (ЭИ496Л) Steel 08Х14Н5М2ДЛ (VNL-3) Steel 08KH14N7ML (VNL-1; 5Х14Н7МЛ) Steel 08KH14NDL Steel 08KH15N4DML Steel 08Х17Н34В5Т3Ю2Л (5Х17Н34В5Т3Ю2Л) Steel 08KH17N34V5T3JU2RL Steel 09KH16N4BL (10Х16Н4БЛ) Steel 09KH17N3SL (10Х17Н3СЛ) Steel 10KH12NDL (0Х12НДЛ) Steel 10Х14Н5М2Л (VNL-2) Steel 10Х14НДЛ (5Х14НДЛ) Steel 10Х17Н10Г4МБЛ (ЭИ402МЛ; 10Х17Н10Г4МБЛС) Steel 10Х17Н13Г4Д2ТЛ (0Х17Н13Г4Д2ТЛ) Steel 10KH18N11BL (5Х18Н11БЛ) Steel 10Х18Н12М3Л Steel 10KH18N3G3D2L (0Х18Н3Г3Д2Л) Steel 10Х18Н9БЛ (Х18Н9БЛ) Steel 10KH18N9L Steel 10Х21Н6М2Л Steel 10Х28Н6М3АЛ Steel 110Г10Л Steel 110G13L (Г13Л) Steel 110G13FTL Steel 110G13KH2BRL Steel 110G13KHBRL Steel 110Г13ХНЛ Steel 110Г8Л Steel 120G10FL Steel 120Г13Х2БЛ Steel 12МХЛ (12ХМЛ) Steel 12Н2ДМЛ Steel 12Х13Н3М2Л (VNL-9) Steel 12Х16Н8М2БЛ (VNL-11) Steel 12KH18N12BL (10Х18Н12БЛ) Steel 12H18N12M3TL Steel 12Х18Н6ФАЛ Steel 12Х18Н7М2ФАЛ Steel 12H18N9TL (10Х18Н9ТЛ) Steel 12KH19N7G2SAL Steel 12KH21N5G2SAL Steel 12KH21N5G2SL Steel 12KH21N5G2SM2L Steel 12KH21N5G2STL Steel 12KH25N5TMFL (10Х25Н5ТМФЛ) Steel 12KHGFL Steel 130G14KHMFAL Steel 13НДФТЛ Steel 13Х11Н5М5Л (VNL-5) Steel 14KH18N4G4L (10Х18Н4Г4Л) Steel 14KH2GMRL Steel 15ДНМЛ Steel 15Х11МФБЛ Steel 15KH13L (10Х13Л) Steel 15KH14NL Steel 15KH18N10G2S2M2L Steel 15KH18N10G2S2M2TL Steel 15Х18Н10Л Steel 15Х18Н12С4Л Steel 15Х18Н22В6М2Л Steel 15KH18N22V6M2RL Steel 15KH23N18L Steel 15KH25TL Steel 16ГДНМЛ Steel 16KH18N12S4TJUL (ЭИ654ЛК) Steel 18Х12НМВФЛ Steel 18KH25N19SL (15Х25Н19СЛ) Steel 20ГСНДМЛ Steel 20Н3ДМЛ Steel 20FTL Steel 20KH12VNMFL Steel 20KH13L Steel 20KH20N14S2L Steel 20Х21Н46В8Л Steel 20KH21N46V8RL Steel 20KH25N19S2L (15Х25Н19С2Л) Steel 20KH5ML Steel 20Х5ТЛ Steel 20KH8VL Steel 20ХГСНДМЛ Steel 20KHGSFL Steel 25НЛ Steel 25KH2NML Steel 27KHGSNMDTL (27ХГСНМДТЛА) Steel 27ХГСНМЛ Steel 27KHN2MFL Steel 30Х16Н22В6БЛ (PO-13Л) Steel 30Х24Н10АТС2Л Steel 30Х28Н6М2Л Steel 30KHG2STL Steel 31KH19N9MVBTL (ЭИ572Л; 30Х19НМВБТЛ) Steel 35KH18N24S2L (30Х18Н24С2Л) Steel 35KH23N7SL (25Х23Н7СЛ) Steel 35KHMFL Steel 40Г17ХН2 (MML-1) Steel 40Х17СЛ (GX40CrSi17) Steel 40KH24N12SL (30Х24Н12СЛ) Steel 40Х27Н4СЛ (GX40CrNiSi27-4) Steel 40Х29СЛ (GX40CrSi29) Steel 40KH9S2L Steel 45Г17НМФ (MML-3) Steel 45Г18Х2ТЮЛ Steel 45KH17G13N3JUL Steel 4Х4Н5МК (on-4M) Steel 50Х24Н12САЛ Steel 55KH18G14S2TL Steel 60Г17ХН2Ф (MML-2) Steel 60Х16Г13ТЛ Steel 70ХЛ Steel 85KH4M5F2V6L (Р6М5Л) Steel 90Г14Ю2 Steel 90Х28МФТАЛ Steel 90KH4M4F2V6L (Р6М4Ф2Л) Steel 95Х18М (VNL-13) Alloy anv-300 Alloy ВЖЛ8 Steel Г13Х2Л Steel Г13ХЛ Steel Х23Н26М3ТФЛ Steel Х23Н28М3Д3ТЛ Steel Х25Н13АТЛ


Name The value
Designation GOST Cyrillic 12Х25Н5ТМФЛ
Designation GOST Latin 12X25H5TMFL
Transliteration 12H25N5TMFL
The chemical elements 12Cr25Н5TiMoV
Name The value
Designation GOST Cyrillic 10Х25Н5ТМФЛ
Designation GOST Latin 10X25H5TMFL
Transliteration 10H25N5TMFL
The chemical elements 10Cr25Н5TiMoV


12KH25N5TMFL steel is used: for the manufacture of casting valves chemical industry, aviation parts and other industries; parts operating under high pressure up to 300 bar (30 MPa).


Steel corrosion resistant, heat resistant (up to +600°C) austenitic-ferritic class.


Name Code Standards
Castings with special properties (cast iron and steel) В83 GOST 2176-77
Castings, steel В82 GOST 977-88

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu N V Ti Mo
GOST 977-88 ≤0.12 ≤0.03 ≤0.03 0.3-0.8 23.5-26 0.2-1 5-6.5 The rest - 0.08-0.2 0.07-0.15 0.08-0.2 0.06-0.12
GOST 2176-77 ≤0.12 ≤0.03 ≤0.03 0.3-0.8 23.5-26 0.2-1 5-6.5 The rest ≤0.3 0.08-0.2 0.07-0.15 0.08-0.2 0.06-0.12
Fe is the basis.
According to GOST 2176-77 the chemical composition is given for steel grade 12X25N5TMFL. Deviations from the norms of chemical composition are allowed: for carbon ± 0.020%; for silicon ± 0.10%; on manganese, copper, chromium and nickel ± 0.10% each; by titanium and tungsten ± 0.050% each; by vanadium, molybdenum and niobium ± 0.020% each.

Mechanical characteristics

Section, mm sT|s0,2, MPa σB, MPa d5, % y, % kJ/m2, кДж/м2
Quenching with 1140-1160 °C, cooling with the furnace to 970-990 °C, further cooled in oil
100 ≥392 ≥540 ≥12 ≥40 ≥294

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

Steels and alloys for castings

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