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Characteristics for grade     12KH12MVFBR   ( 12Х12МВФБР )

      Grade :   12KH12MVFBR   ( 12Х12МВФБР ) (   ЭП752   )
      Classification :   High alloy high-temperature steel
      Equivalent grades:     Is absent




Chemical composition in % for grade   12KH12MVFBR   ( 12Х12МВФБР )
C Si Mn Ni S P Cr Mo W V Nb B
0.1 - 0.15max   0.50.5 - 10.5 - 1max   0.025max   0.02511 - 130.7 - 10.55 - 0.850.15 - 0.30.15 - 0.3max   0.08


Mechanical properties under Т=20oС for grade   12KH12MVFBR   ( 12Х12МВФБР )
Assortment Dimension Direct. sв sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Pipe   longitudinal 820 640 17   Normalizing 1000 - 1050oC,Cooling air, Drawing 750 - 780oC, 3h,Cooling air,
Blank for pipe   longitudinal 880 740 20 641300Normalizing 1000 - 1050oC,Cooling air, Drawing 750 - 780oC, 3h,Cooling air,


Physical properties for grade   12KH12MVFBR   ( 12Х12МВФБР )
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 2.28   27.6 7850    
100   11.15 21.8      
200 2.15 11.13 24      
300 2.09 11.42 25.1      
400 1.95 11.8 26.3      
500 1.88 12 27.2      
600 1.73 12.15 28      
700 1.55 12.15 28.9      
800   12.65        
900   11.6        
T E 10- 5 a 10 6 l r C R 10 9


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]

  12KH12MVFBR   ( 12Х12МВФБР ) - High 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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