By visiting this site, you accept the use of cookies. More about our cookie policy.

Steel 25Х2ГНТА

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 25Х2ГНТА
Designation GOST Latin 25X2GHTA
Transliteration 25H2GNTA
The chemical elements 25Cr2MnНTi

Description

25Х2ГНТА steel is used: for the manufacture of beams, bolts, axes, vessels, working under excessive internal pressure; the rims of the driven wheels of the traction gear trains, gear and other upgradable parts, tubular billets and pipes.

Note

Chromatorgraphy high quality high strength alloy steel.
Can be used at temperatures up to -80 °C (wall thickness not more than 100 mm).

Standards

Name Code Standards
Classification, nomenclature and general norms В20 OST 1 90005-91
Norms of calculation and design В02 PI 1.2.053-78
Bulls. Blanks. Slabs В31 TU 14-1-1030-74, TU 1-92-156-90
Sectional and shaped rolling В32 TU 14-1-1885-85, TU 14-1-3238-81, TU 14-1-3238-2006
Pipes steel and connecting parts to them В62 TU 14-3-289-74

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu Ti
TU 14-1-1885-85 0.22-0.29 ≤0.015 ≤0.025 0.8-1.1 1.3-1.7 0.2-0.5 0.9-1.3 The rest ≤0.25 0.02-0.06
TU 14-1-3238-81 0.22-0.29 ≤0.025 ≤0.025 0.8-1.1 1.3-1.7 0.2-0.5 0.9-1.3 The rest - 0.03-0.09
Fe is the basis.
According to TU 14-1-3238-81 the chemical composition is given for steel grade 25H2GNTA. For steel grade 25Х2ГНТА-СШ the content S≤0,015%.
According to TU 14-1-1885-85, the chemical composition is given for steel grade 25Х2ГНТА-ВД. To ensure the required grain size, it is allowed to introduce vanadium in the steel smelting at the rate of its content in steel no more than 0.10%, the content of which in steel is not determined. The presence of tungsten to 0.20%, molybdenum to 0.15% is not a rejection sign. The allowable deviation in manganese content in steel is + 0.010 / -0.020%, in titanium content +0.040%.

Mechanical characteristics

Section, mm sT|s0,2, MPa σB, MPa d5, % y, % kJ/m2, кДж/м2 Brinell hardness number, MPa HRC
Gradation of performance properties of the finished heat-treated parts for OST 1 90005-91
- - 1370-1620 - - - 388-445 41-46
Bars and rods, hot rolled, forged and calibrated. Normalization at 880-920 °C + Quenching in oil 840-860 °C + Vacation at 160-200 °C, air cooling
≥1175 ≥1470 ≥10 ≥45 ≥690 388-515 -
Bars of steel 25Х2ГНТА on the other 14-1-1885-85. Normalization at 880-920 °C + Quenching in oil 840-860 °C + Vacation at 160-200 °C, air cooling. In the graph KCU KCU values are shown along the fiber/KCU across the grain
≥1175 ≥1470 ≥10 ≥45 ≥686/- 387-514 -

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
HRC Rockwell hardness (indenter diamond spheroconical)

Physical characteristics

Temperature Е, ГПа r, кг/м3 l, Вт/(м · °С) a, 10-6 1/°С
20 195 7800 - -
100 - - 419 12
200 - - 411 13
300 - - 407 137

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
Macrostructure and contamination Macrostructure of steel when testing for the breaks in the longitudinal direction and transverse templeto selected from rolled, should not have shrinkage, porosity, bubbles, cracks, delamination, inclusions and placenow and defects of fracture, listed in Annex 3 GOST 10243. The Central porosity, point heterogeneity and phase separation in the square should not exceed 1 points; layer-by-layer crystallization and the bright loop - 3 points reference scales GOST 10243. All other defects under GOST 10243, are not allowed. Pollution steel non-metallic inclusions should be according to the average score is not higher (in points): oxides of point 1,5, 2,0 stroke oxides, silicates fragile 1,0, 1,0 silicates plastic, silicates, non-deformed 2,5, 2,5 sulfides, nitrides stroke and point 1,0.

Our consultant will save your time

+49 (170) 650 7006
Telegram:
WhatsApp:

Subscription

Special offers and discounts. :)