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Characteristics for grade     12KhM   ( 12ХМ )

      Grade :     12KhM   ( 12ХМ )
      Classification :   Low alloy high-temperature steel
      Equivalent grades:   Go here



Chemical composition in % for grade   12KhM   ( 12ХМ )
C Si Mn Ni S P Cr Mo
max   0.160.17 - 0.370.4 - 0.7max   0.3max   0.025max   0.0250.8 - 1.10.4 - 0.55


Temperature of critical points for grade   12KhM   ( 12ХМ ).
Ac1 = 720 ,      Ac3(Acm) = 880 ,       Ar3(Arcm) = 790 ,       Ar1 = 695


Mechanical properties under Т=20oС for grade   12KhM   ( 12ХМ )
Assortment Dimension Direct. sв sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Sheet, GOST 5520-79     430-550235-24518-22 490-590 
Pipe Ø 273 x 28 longitudinal 455 284 31.5 66.51930Normalizing 910 - 930oC,Drawing 670 - 690oC,Cooling air,


Physical properties for grade   12KhM   ( 12ХМ )
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 2.16     7850 498  
100 2.1 11.2 50.24     240
200 2.04 12.5 50.24   519 330
300 1.99 12.7 50.24   569 410
400 1.93 12.9 48.56   595 540
500 1.82 13.2 46.89   653 640
600 1.73 13.5 46.05   733 740
700   13.8 43.96   888 900
T E 10- 5 a 10 6 l r C R 10 9


Equivalent steels for grade     12KhM   ( 12ХМ )
Warning! Indicated both exact and nearest equivalents.
USAGermanyJapanFranceEnglandEuropeanItalyBelgiumSpainChinaSwedenBulgariaHungaryPolandRomaniaCzechiaAustriaSouth Korea
-DIN,WNrJIS AFNORBSEN UNINBNUNEGBSSBDSMSZPNSTASCSNONORMKS
A182
A387Gr.12Cl.2
Gr.P12
K11562
K11572
K11597
K11757
K12062
1.7335
13CrMo4
13CrMo4-5
13CrMo44
SFVA12
SFVAF12
STBA20
STBA22
STFA22
STPA20
STPA22
13CrMo4-5
14CrMo4-5
15CD3.5
15CD4.05
15CD4.5
13CrMo4-5
1501-620
1501-621
620-440
620-470
620-540
1.7335
13CrMo4-5
13CrMo4-5
14CrMo3
16CrMo3
14CrMo45
14CrMo4-5
F.2613
F.2631
12CrMo
12CrMoG
2216
13CrMo4-5
14ChM
15ChM
13CrMo4-5
KL9
15HM
14CrMo4
15121
13CrMo4-4KW
SFVAF12
STHA20
STHA22


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]

  12KhM   ( 12ХМ ) - Low alloy high-temperature 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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