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Characteristics for grade     KhN70VMTYu   ( ХН70ВМТЮ )

      Grade :   KhN70VMTYu   ( ХН70ВМТЮ ) (   ЭИ617     ХН70ВМТЮ-ВИ     ЭИ617-ВИ   )
      Classification :   Hidh-temperature or heat-resistant alloy
      Equivalent grades:     Is absent



Chemical composition in % for grade   KhN70VMTYu   ( ХН70ВМТЮ )
Fe C Si Mn Ni S P Cr Ce Mo W V TiAl B
max   5max   0.12max   0.7max   0.561.5 - 76.4max   0.02max   0.0213 - 16max   0.022 - 45 - 70.1 - 0.51.8 - 2.31.7 - 2.3max   0.02
Comment: Ni is a basis; the percentage of Ni is given approximately.


Mechanical properties under Т=20oС for grade   KhN70VMTYu   ( ХН70ВМТЮ )
Assortment Dimension Direct. sв sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Bar, GOST 23705-79     670-690  3-78-10 Hardening and ageing


    Brinell hardness for     KhN70VMTYu   ( ХН70ВМТЮ )   (quenching, ageing) ,     Bar GOST 23705-79 HB 10 -1 = 299 - 341   MPa


Technological properties for grade   KhN70VMTYu   ( ХН70ВМТЮ )
  Weldability: hard weldability.


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]

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

  KhN70VMTYu   ( ХН70ВМТЮ ) - 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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