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Characteristics for grade     12Kh1MF   ( 12Х1МФ )

      Grade :   12Kh1MF   ( 12Х1МФ ) (   12ХМФ   )
      Classification :   Low alloy high-temperature steel
      Equivalent grades:   Go here




Chemical composition in % for grade   12Kh1MF   ( 12Х1МФ )
C Si Mn Ni S P Cr Mo V Cu
0.1 - 0.150.17 - 0.370.4 - 0.7max   0.3max   0.025max   0.030.9 - 1.20.25 - 0.350.15 - 0.3max   0.2


Temperature of critical points for grade   12Kh1MF   ( 12Х1МФ ).
Ac1 = 760 ,      Ac3(Acm) = 890 ,       Ar3(Arcm) = 825 ,       Ar1 = 730 ,       Mn = 430


Mechanical properties under Т=20oС for grade   12Kh1MF   ( 12Х1МФ )
Assortment Dimension Direct. sв sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Sheet, GOST 5520-79     440-640295 21  790 
Bar, GOST 20072-74   longitudinal 470 255 21 55980Normalizing 960 - 980oC,Drawing 740 - 760oC,
Forging   longitudinal 480 260 20 50600Normalizing and high drawing


    Brinell hardness for     12Kh1MF   ( 12Х1МФ )   (normalize) ,       HB 10 -1 = 123 - 179   MPa
    Brinell hardness for     12Kh1MF   ( 12Х1МФ )   (hot-rolled, annealing) ,       GOST 20072-74 HB 10 -1 = 217   MPa


Technological properties for grade   12Kh1MF   ( 12Х1МФ )
  Weldability: limited weldability.


Physical properties for grade   12Kh1MF   ( 12Х1МФ )
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 1.98     7800   230
100 1.93 12.4 44 7780   278
200 1.88 13 44 7750   343
300 1.83 13.6 42 7720   430
400 1.75 14 40 7680   532
500 1.67 14.4 37 7640   647
600 1.57 14.7 35 7600   775
700 1.51 14.9 32 7570   962
800   14.8 28 7540   1087
900   12 28 7560   1130
T E 10- 5 a 10 6 l r C R 10 9



Equivalent steels for grade     12Kh1MF   ( 12Х1МФ )
Warning! Indicated both exact and nearest equivalents.
GermanyEnglandSpain
DIN,WNrBSUNE
1.7715
14MoV6-3
1503-660-440
13MoCrV6


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

  12Kh1MF   ( 12Х1МФ ) - 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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