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Characteristics for grade     10KH7MVFBR   ( 10Х7МВФБР )

      Grade :   10KH7MVFBR   ( 10Х7МВФБР ) (   ЭП505   )
      Classification :   High alloy high-temperature steel
      Equivalent grades:     Is absent



Chemical composition in % for grade   10KH7MVFBR   ( 10Х7МВФБР )
C Ni S P Cr Mo V Nb B
0.07 - 0.120.5 - 1max   0.025max   0.0256 - 80.7 - 10.3 - 0.50.15 - 0.4max   0.005


Temperature of critical points for grade   10KH7MVFBR   ( 10Х7МВФБР ).
Ac1 = 860 ,      Ac3(Acm) = 905 ,       Ar3(Arcm) = 435 ,       Ar1 = 350


Mechanical properties under Т=20oС for grade   10KH7MVFBR   ( 10Х7МВФБР )
Assortment Dimension Direct. sв sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Pipe   longitudinal 690 580 20 651000Normalizing 980 - 100oC,Cooling air, Drawing 700 - 730oC, 3h,Cooling air,
Blank for pipe   longitudinal 690 610 18 59530Annealing 800 - 830oC,Cooling oven, 30 oC/h,


Physical properties for grade   10KH7MVFBR   ( 10Х7МВФБР )
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 2.46   25.5 7850   510
100 2.396 10.25        
200 2.39 11.6        
300 2.195 12.4        
400 2.006 12.75        
500 1.92 13.25        
600 1.85 13.6        
700 1.685 13.4        
800 1.445          
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]

  10KH7MVFBR   ( 10Х7МВФБР ) - 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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