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Characteristics for grade     KhN70VMTYuF   ( ХН70ВМТЮФ )

      Grade :   KhN70VMTYuF   ( ХН70ВМТЮФ ) (   ЭИ826     ХН70ВМТЮФ-ВД     ЭИ826-ВД   )
      Classification :   Hidh-temperature or heat-resistant alloy
      Equivalent grades:     Is absent




Chemical composition in % for grade   KhN70VMTYuF   ( ХН70ВМТЮФ )
Fe C Si Mn Ni S P Cr Ce Mo W V TiAl B
max   5max   0.12max   0.6max   0.560.621 - 75.2max   0.009max   0.01513 - 16max   0.022.5 - 45 - 70.2 - 11.7 - 2.22.4 - 2.9max   0.015
Comment: Ni is a basis; the percentage of Ni is given approximately.


Mechanical properties under Т=20oС for grade   KhN70VMTYuF   ( ХН70ВМТЮФ )
Assortment Dimension Direct. sв sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Bar, GOST 23705-79   longitudinal 1030 705 10 12196 


    Brinell hardness for     KhN70VMTYuF   ( ХН70ВМТЮФ )   (quenching) ,       GOST 23705 HB 10 -1 = 299 - 341   MPa


Technological properties for grade   KhN70VMTYuF   ( ХН70ВМТЮФ )
  Weldability: hard weldability.


Physical properties for grade   KhN70VMTYuF   ( ХН70ВМТЮФ )
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   8.8 8470    
100   10.4 10.5      
200   11.7 12.6      
300   12.4 14.2      
400   12.9 16.3      
500 1.7 13.2 18.4      
600 1.65 13.6 20.5      
700 1.55 14 22.6      
800 1.45 14.5 25.1      
900 1.3 15 28      
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]

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

  KhN70VMTYuF   ( ХН70ВМТЮФ ) - Hidh-temperature or heat-resistant alloy: 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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