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

Alloy HN35VT (ЭИ612)

Alloy KhN23MTYR (EP260) Alloy KhN43MGB (EP941) Alloy KhN43BMTU (EP915) Alloy KhN38VB (EI703B) Alloy KhN35MTU (EP105) Alloy KhN35KVT (EI612K) Alloy CrN35VTU (EI787) Alloy CrN35VT (EI612) Alloy CrN35VB (EP912) Alloy KhN33KVY (VZH145; EK102) Alloy KhN33BS Alloy HC30NVMT (EP720) Alloy Kh20N32T (KhN32T; EP670) Alloy Kh18K60V14N11 (EP131) Alloy 20X25N25TU Alloy 20X25H20S Alloy 16KhNKGMB (EP899) Alloy 15Х25Н40М2ВТ Alloy 10X20H32TU Alloy 05X20H32T

Designation

Name The value
Designation GOST Cyrillic ХН35ВТ
Designation GOST Latin XH35BT
Transliteration HN35VT
The chemical elements CrNi35ВTe
Name The value
Designation GOST Cyrillic ЭИ612
Designation GOST Latin EI612
Transliteration EhI612
The chemical elements -

Description

Alloy HN35VT used: for the manufacture of disks, rotors, fasteners, flat springs are made by cold heading; blades and other turbine components operating at temperatures to +650 °C.

Note

High-temperature alloy, iron-Nickel basis.

Standards

Name Code Standards
Sheets and stripes В23 GOST 19904-90
Classification, nomenclature and general norms В30 GOST 5632-72
Bulls. Blanks. Slabs В31 OST 3-1686-90
Thermal and thermochemical treatment of metals В04 STP 26.260.484-2004, ST ЦКБА 016-2005
Metal forming. Forgings В03 TU 108.02.118-86, TU 14-1-1530-75, ST ЦКБА 010-2004
Sheets and stripes В33 TU 14-1-1528-76
Sectional and shaped rolling В22 TU 14-1-1665-76
Sectional and shaped rolling В32 TU 14-1-272-72, TU 14-11-245-88

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu Al Ti Mo W
TU 14-1-1665-76 ≤0.12 ≤0.01 ≤0.025 1-2 14-16 ≤0.6 34-36 The rest ≤0.25 - 1.1-1.5 ≤0.3 2.8-3.5
GOST 5632-72 ≤0.12 ≤0.02 ≤0.03 1-2 14-16 ≤0.6 34-38 The rest ≤0.3 - 1.1-1.5 ≤0.3 2.8-3.5
TU 14-1-272-72 ≤0.12 ≤0.02 ≤0.02 1-2 14-16 ≤0.6 34-38 The rest - ≤0.5 1.1-1.5 - 2.8-3.5
TU 14-1-1528-76 ≤0.12 ≤0.02 ≤0.03 1-2 14-16 ≤0.6 34-38 The rest ≤0.3 - 1.1-1.5 ≤0.3 2.8-3.5
Fe is the basis.
According to TU 14-1-1665-76, the chemical composition is given for the alloy grade KhN35VT-VD (EI612-VD). The deviation by the content of manganese is allowed to be -0.30%. In the finished product deviations from the established norms of chemical composition are allowed in accordance with GOST 5632. A technological additive REM is allowed. The residual aluminum content is allowed up to 0.50%.

Mechanical characteristics

Section, mm sT|s0,2, MPa σB, MPa d5, % y, % kJ/m2, кДж/м2 Brinell hardness number, MPa
Blank pieces of pipe fittings and welded assemblies at ST CKBA 016-2005. Quenching in water from 1080-1100 °C (aging of 1.0-1.5 h for workpieces 90-150 mm to 1.5-2.5 h) + Aging at 850-900 °C (exposure for 10 h), air cooling + Ageing at 690-710 °C (extract 10-50 h), air cooling (single HN35VT allowed for Aging at 700 °C (aging for 50 h), air cooling)
≤650 ≥392 ≥735 ≥15 ≥25 ≥686 207-269
Bars varietal HN35VT-VD (ЭИ612-VD) TU 14-1-1665-76. Austenization heating up to 1080-1100 °C, cooling in water + Aging at 840-860 °C (exposure for 10 h) + Aging at 700-710 °C (aging 35-50 h), air cooling
≥490 ≥830 ≥18 ≥40 ≥590 -
A sample with a diameter of 6 mm, length 30 mm, forged. The rate of deformation of 16 mm/min strain Rate of 0.009 1/s
- ≥180 ≥185 ≥28 ≥49 - -
Blank pieces of pipe fittings and welded assemblies at ST CKBA 016-2005. Quenching in water from 1080-1100 °C (aging of 1.0-1.5 h for workpieces 90-150 mm to 1.5-2.5 h) + Aging at 850-900 °C (exposure for 10 h), air cooling + Ageing at 690-710 °C (extract 10-50 h), air cooling (single HN35VT allowed for Aging at 700 °C (aging for 50 h), air cooling)
≤200 ≥490 ≥830 ≥18 ≥40 ≥588 207-269
Bars varietal HN35VT-VD (ЭИ612-VD) TU 14-1-1665-76. Austenization heating up to 1080-1100 °C, cooling in water + Aging at 840-860 °C (exposure for 10 h) + Aging at 700-710 °C (aging 35-50 h), air cooling
- ≥441 - - - -
A sample with a diameter of 6 mm, length 30 mm, forged. The rate of deformation of 16 mm/min strain Rate of 0.009 1/s
- ≥98 ≥105 ≥67 ≥90 - -
Forgings. Quenching in water from 1080-1100 °C + Aging 850 °C (exposure for 10 h), air cooling + Aging 700 °C (extract 25-50 HR), cooling with the oven up to 200-300 °C (indicated by the direction of fillet samples)
125-250 ≥390 ≥730 ≥15 ≥25 ≥560 217-269
Bars varietal HN35VT-VD (ЭИ612-VD) TU 14-1-1665-76. Austenization heating up to 1080-1100 °C, cooling in water + Aging at 840-860 °C (exposure for 10 h) + Aging at 700-710 °C (aging 35-50 h), air cooling
- ≥441 - - - -
A sample with a diameter of 6 mm, length 30 mm, forged. The rate of deformation of 16 mm/min strain Rate of 0.009 1/s
- ≥56 ≥60 ≥84 ≥96 - -
Forgings. Quenching in water from 1080-1100 °C + Aging 850 °C (exposure for 10 h), air cooling + Aging 700 °C (extract 25-50 HR), cooling with the oven up to 200-300 °C (indicated by the direction of fillet samples)
125 ≥390 ≥730 ≥15 ≥35 ≥560 217-269
A sample with a diameter of 6 mm, length 30 mm, forged. The rate of deformation of 16 mm/min strain Rate of 0.009 1/s
- ≥30 ≥40 ≥90 ≥96 - -
Forgings. Quenching in water from 1080-1100 °C + Aging 850 °C (exposure for 10 h), air cooling + Aging 700 °C (extract 25-50 HR), cooling with the oven up to 200-300 °C (indicated by the direction of fillet samples)
125-250 ≥390 ≥730 ≥13 ≥20 ≥490 217-269
Forgings of disks with a diameter 450-1000 mm, height mm. 180-275 Quenching in water from 1090 °C + Ageing at 850 °C (exposure for 10 h) + Aging at 700 °C (extract 25-40 h), cooling with the furnace (samples tangential)
- 390-640 710-980 13-31 14-50 - -
Bars and strip hot rolled and forged. Austenization heating up to 1080-1100 °C (aging of 1.0-1.5 h), cooling in water + Aging at 690-710 °C (extract 25-50 hours), air cooling
≥390 ≥740 ≥15 ≥35 ≥686 -
Forgings of disks with a diameter 450-1000 mm, height mm. 180-275 Quenching in water from 1090 °C + Ageing at 850 °C (exposure for 10 h) + Aging at 700 °C (extract 25-40 h), cooling with the furnace (samples tangential)
- 370-470 530-710 10-21 15-42 - -
Bars and strip hot rolled and forged. Austenization heating up to 1080-1100 °C (aging of 1.0-1.5 h), cooling in water + Aging at 850-900 °C (exposure for 10 h), air cooling
≥390 ≥740 ≥15 ≥35 ≥686 -
Forgings of disks with a diameter 450-1000 mm, height mm. 180-275 Quenching in water from 1090 °C + Ageing at 850 °C (exposure for 10 h) + Aging at 700 °C (extract 25-40 h), cooling with the furnace (samples tangential)
- 350-460 490-670 7.5-19 14-37 - -
Bars hot rolled and forged at STP 26.260.484-2004. Quenching in water with 1080-1000 °C to + First aging at 850-900 °C (exposure for 10 h) air cooling + Second aging at 700 °C (extract 10-50 h) air cooling
≥400 ≥750 ≥15 ≥25 - -
Rolled steel with a diameter of 45-90 mm. Quenching in water from 1090 °C + Ageing at 850 °C (exposure for 10 h) + Aging at 700 °C (extract 25-40 h), air cooling or furnace
- 430-620 780-850 18-30 30-55 - -
Rolled steel. Quenching in water from 1080-1100 °C
25 ≥500 ≥850 ≥18 ≥40 ≥600 -
Rolled steel with a diameter of 45-90 mm. Quenching in water from 1090 °C + Ageing at 850 °C (exposure for 10 h) + Aging at 700 °C (extract 25-40 h), air cooling or furnace
- 430-470 720-760 20.5 37-42 - -
- 430-470 710-740 16-21 30-43 - -
- 430-470 700-740 19-22 35-45 - -
- 410-470 670-740 15-23 23-53 - -
- 390-500 630-710 15-25 30-48 - -
- 360-440 450-490 9-31 11-48 - -

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 Е, ГПа r, кг/м3 l, Вт/(м · °С) R, НОм · м a, 10-6 1/°С
0 198 8164 - - -
20 202 8160 - - -
100 195 - 13 1020 148
200 190 - 16 1050 151
300 186 - 17 1100 155
400 179 - 19 1120 159
500 173 - 21 1150 161
600 166 - 22 1160 166
700 158 - 24 1170 166
800 150 - 26 - 177
900 - - - - 169

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. The welding process is SMAW, the electrodes KTI-762. To relieve welding stresses, the recommended subsequent heat treatment. The welding in the hardened state. Welded Assembly shall be subjected to aging.
Forging temperature Beginning - 1170 °C, the end - 850 °C air Cooling.
Workability by cutting In the heat treated condition in HB 269 and blower SB=951 MPa Kn TV.SPL.=0,30 Kn b.St.=0,15.
Features of heat treatment Products and parts of chemical engineering of alloy HN35VT should termoobrabotki regime: quenching in water from 1080-1100 °C to + first aging at 850-900 °C With exposure for 10 hours and air cooling + second aging at 700 °C with an exposure of 10-50 hours and air cooling. The duration of the aging is determined by the titanium content. When the titanium content at the lower limit of 1.1-1.2% of the duration of aging of 50 hours, with a larger content of 25-40 hours. For forged rod from steel HN35VT-VD hardening should be performed at a temperature of from 1020 °C. to 1040°C.

Our consultant will save your time

+49 (170) 650 7006
E-mail:
Telegram:
WhatsApp:
Ask a question

Subscription

Special offers and discounts. :)
XH78T wire, Mn pipe, Rod copper m2, copper tube, Titanium wire