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Characteristics for grade     12KH2MV8FB   ( 12Х2МВ8ФБ )

      Grade :   12KH2MV8FB   ( 12Х2МВ8ФБ ) (   ЭП503   )
      Classification :   High alloy high-temperature steel
      Equivalent grades:     Is absent



Chemical composition in % for grade   12KH2MV8FB   ( 12Х2МВ8ФБ )
C Si Mn Ni S P Cr Mo W V Nb
0.07 - 0.120.4 - 0.70.4 - 0.7max   0.5max   0.025max   0.0252.1 - 2.60.5 - 0.77 - 8.50.2 - 0.350.8 - 1.2


Mechanical properties under Т=20oС for grade   12KH2MV8FB   ( 12Х2МВ8ФБ )
Assortment Dimension Direct. sв sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Pipe Ø 32 x 6 longitudinal 910 750 16 47900 


Physical properties for grade   12KH2MV8FB   ( 12Х2МВ8ФБ )
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     24.3 8010   410
100 2.17 10.25        
200 2.09 11.6        
300 2.04 11.6        
400 1.88 11.6        
500 1.72 13.85        
600 1.57 12.7        
700 1.42 14.95        
800 1.32 10.5        
900 1.24 13.85        
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]

  12KH2MV8FB   ( 12Х2МВ8ФБ ) - 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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