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Characteristics for grade     38KH2N2MА   ( 38Х2Н2МА )

      Grade :   38KH2N2MА   ( 38Х2Н2МА ) (   38ХНМА   )
      Substitute:   38Х2Н2ВА
      Classification :   Alloy structurall steel
      Equivalent grades:   Go here



Chemical composition in % for grade   38KH2N2MА   ( 38Х2Н2МА )
C Si Mn Ni S P Cr Mo Cu
0.33 - 0.40.17 - 0.370.25 - 0.51.3 - 1.7max   0.025max   0.0251.3 - 1.70.2 - 0.3max   0.3


Temperature of critical points for grade   38KH2N2MА   ( 38Х2Н2МА ).
Ac1 = 753 ,      Ac3(Acm) = 790 ,       Ar3(Arcm) = 490 ,       Ar1 = 370 ,       Mn = 320


Mechanical properties under Т=20oС for grade   38KH2N2MА   ( 38Х2Н2МА )
Assortment Dimension Direct. sв sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Bar, GOST 4543-71 Ø 25   1080 930 12 50780Guenching and drawing


    Brinell hardness for     38KH2N2MА   ( 38Х2Н2МА )   (annealing) ,       GOST 4543-71 HB 10 -1 = 269   MPa


Technological properties for grade   38KH2N2MА   ( 38Х2Н2МА )
  Weldability: is not used.
 Flakes : predisposed
Temper brittleness: not predisposed


Physical properties for grade   38KH2N2MА   ( 38Х2Н2МА )
T E 10- 5 a 10 6 l r C R 10 9
Grade MPa 1/Grade Watt/(m·Grade) kg/m3 J/(kg·Grade) Ohm·m
20 2.13   38     322
100 2.06 11.9 37   490 398
200 1.94 12.5 35   502 482
300 1.8 13.1 35   523 592
400 1.74 13.3 33   532 740
500 1.64 13.8 32   565 910
600 1.57 14.1 30   590 1090
700 1.41 14.6 28   615 1300
800 1.29 11.8 28   670  
T E 10- 5 a 10 6 l r C R 10 9


Equivalent steels for grade     38KH2N2MА   ( 38Х2Н2МА )
Warning! Indicated both exact and nearest equivalents.
USAGermanyJapanFranceEnglandEuropeanItalyBelgiumSpainSwedenBulgariaHungaryPolandRomaniaCzechiaAustriaSouth Korea
-DIN,WNrJIS AFNORBSEN UNINBNUNESSBDSMSZPNSTASCSNONORMKS
4330
4337
4340
G43376
G43400
G43499
1.6582
34CrNiMo6
35CrNiMo6
GS-34CrNiMo6
SNCM447
34CrNiMo6
34CrNiMo8
35CND6
34CrNiMo6
816M40
817M40
1.6582
34CrNiMo6
35CrNiMo6KD
34CrNiMo6
35CrNiMo6
35NiCrMo6KB
35CrNiMo6
34CrNiMo6
40NiCrMo7
F.1272
2541
34CrNiMo6
34CrNiMo6
34HNM
34MoCrNi15
34MoCrNi15q
34MoCrNi16
34MoCrNi16q
16343
BOHLERV155
SNCM447


Specification :
Mechanical properties :
sв - Tensile strength , [MPa]
sT - Yield stress, [MPa]
d5 - Specific elongation at fracture , [ % ]
y - Reduction of area , [ % ]
KCU - Impact strength , [ kJ / m2]
HB - Brinell hardness , [MPa]

Physical properties :
T - Test temperature , [Grade]
E - Young modulus , [MPa]
a - Coefficient of linear expansion (range 20o - T ) , [1/Grade]
l - Termal (heat) condition coefficient , [Watt/(m·Grade)]
r - Density , [kg/m3]
C - Specific heat ( range 20o - T ), [J/(kg·Grade)]
R - Electrical resistance , [Ohm·m]

Weldability :
without limitations - welding is done without heating and subsequent heat treeting
limited weldability - welding is possible under heating up to 100-120 grade and subsequent heat treeting
hard weldability - obtaining the quality welding needs the additional operations:heating up to 200-300 grade; the heat treeting ia annealing

  38KH2N2MА   ( 38Х2Н2МА ) - Alloy structurall steel: chemical composition, mechanical and physical properties, hardness
Database of steels and alloys (Marochnik) contains information about chemical composition and properties more then 3000 steels and alloys

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