Steel 36KH2N2MFA (36ХН1МФА)

Designation

Name The value
Designation GOST Cyrillic 36Х2Н2МФА
Designation GOST Latin 36X2H2MFA
Transliteration 36H2N2MFA
By chemical elements 36Cr2Н2MoV
Name The value
Designation GOST Cyrillic 36ХН1МФА
Designation GOST Latin 36XH1MFA
Transliteration 36HN1MFA
By chemical elements 36CrН1MoV

Description

36KH2N2MFA steel is used: for the manufacture of large critical parts, disks, bolts and special fasteners; forged ship shaft.

Note

Structural steel high-quality hromonikelemolibdenovyh.

Standards

Name Code Standards
Sheets and strips В23 GOST 103-2006
Bars and shapes В22 GOST 1133-71, GOST 8319.0-75, GOST 2590-2006, GOST 2591-2006, GOST 2879-2006
Bars and shapes В32 GOST 4543-71, GOST 7417-75, GOST 8559-75, GOST 8560-78, GOST 14955-77, TU 14-1-2118-77, TU 14-11-245-88, TU 14-136-367-2008
Processing of metals by pressure. Forgings В03 GOST 8479-70, OST 5Р.9125-84, TU 0893-019-05764417-2001, ST ЦКБА 010-2004
Blanks. Of the workpiece. Slabs В31 OST 3-1686-90, TU 14-1-4944-90

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu V Ti Mo W
GOST 4543-71 0.33-0.4 ≤0.025 ≤0.025 0.25-0.5 1.3-1.7 0.17-0.37 1.3-1.7 Rest ≤0.3 0.1-0.18 ≤0.03 0.3-0.4 ≤0.2
Fe is the basis.
GOST 4543-71 regulates the content of high-quality steel: P≤0,025%; S≤0.015%; Сu≤0.25%.

Mechanical properties

Section, mm t отпуска, °C sT|s0,2, MPa σU, MPa d5, % y, % KCU, kJ/m2 HB, MPa HRC
Quenching in oil from 850 °C + vacation
- 250 1460 1710 10 45 549 - 49
- 300 1440 1620 10 47 510 - 47
- 400 1350 1450 10 42 402 - 44
- 500 1220 1320 12 45 677 - 40
- 600 1020 1120 16 64 1060 - 35
Quenching in oil from 850 °C + vacation at 600 °C, air cooling
≤25 - 1080 1180 12 50 765 - -
Quenching in oil or water from 860 °C to + vacation at 600 °C, air cooling (named place of cutting out of samples)
140-160 - 1080 1190 15 56 991 - -
Quenching + tempering (forgings)
500-800 - 640 785 10 30 383 248-293 -
Quenching in oil or water from 860 °C to + vacation at 600 °C, air cooling (named place of cutting out of samples)
200-240 - 1080 1180 16 53 951 - -
Quenching + tempering (forgings)
500-800 - 685 835 10 30 383 262-311 -
Quenching in oil or water from 860 °C to + vacation at 600 °C, air cooling (named place of cutting out of samples)
100-120 - 1080 1190 15 53 893 - -
Quenching + tempering (forgings)
300-500 - 735 880 11 30 383 277-321 -
Quenching in oil or water from 860 °C to + vacation at 600 °C, air cooling (named place of cutting out of samples)
140-160 - 1000 1140 14 52 834 - -
Quenching + tempering (forgings)
100-300 - 785 930 11 35 481 293-331 -
Quenching in oil or water from 860 °C to + vacation at 600 °C, air cooling (named place of cutting out of samples)
200-240 - 900 1050 15 53 716 - -
Quenching + tempering (forgings)
300-500 - 785 930 10 30 383 293-331 -
Quenching in oil from 860 °C to + vacation at 600 °C, air cooling (named place of cutting out of samples)
160-200 - 940 1080 16 53 716 - -
160-200 - 890 1040 16 50 628 - -
25-50 - 1060 1180 17 56 1207 - -
50-80 - 920 1020 16 53 804 - -

Description mechanical marks

Name Description
sT|s0,2 Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
σU Limit short-term strength
d5 Elongation after rupture
y The relative narrowing
KCU Toughness
HB Brinell hardness number
HRC Rockwell hardness (indenter diamond spheroconical)

Physical characteristics

Temperature Е, HPa G, HPa l, W/(m · °C) R, Mr. · m a, 10-6 1/°C С, J/(kg · °C)
0 212 84 36 278 - -
20 212 - 36 278 - -
100 204 80 36 335 125 496
200 198 78 35 432 128 508
300 186 74 35 517 133 525
400 173 68 34 613 135 538
500 166 65 33 720 14 567
600 156 61 31 825 143 601
700 139 53 30 940 145 672
800 127 48 29 - 145 672
1000 - - - - 11 697

A description of the physical symbols

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

Technological properties

Name The value
Weldability difficult weldability.
Склонность к отпускной хрупкости tend not
The temperature of forging Start - 1240 °C, the end - 780 °C. the cross Sections up to 50 mm are cooled in boxes, 51-700 mm are subjected to low-temperature annealing, one hypothermia.
Flock-sensitive sensitivity sensitive