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Characteristics for grade     34KHN3MА   ( 34ХН3МА )



      Grade :     34KHN3MА   ( 34ХН3МА )
      Classification :   Alloy structurall steel
      Equivalent grades:   Go here



Chemical composition in % for grade   34KHN3MА   ( 34ХН3МА )
C Si Mn Ni S P Cr Mo
0.3 - 0.40.17 - 0.370.5 - 0.82.75 - 3.75max   0.035max   0.030.7 - 1.10.25 - 0.4


Temperature of critical points for grade   34KHN3MА   ( 34ХН3МА ).
Ac1 = 720 ,      Ac3(Acm) = 790


Mechanical properties under Т=20oС for grade   34KHN3MА   ( 34ХН3МА )
Assortment Dimension Direct. sв sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Forging to 100   950 800 12 40  


    Brinell hardness for     34KHN3MА   ( 34ХН3МА )   ,       HB 10 -1 = 293 - 331   MPa


Technological properties for grade   34KHN3MА   ( 34ХН3МА )
  Weldability: hard weldability.
 Flakes : predisposed
Temper brittleness: weakly predisposed


Equivalent steels for grade     34KHN3MА   ( 34ХН3МА )
Warning! Indicated both exact and nearest equivalents.
Czechia
CSN
16540



Types of delivery of grade   34KHN3MА   ( 34ХН3МА )
B03 - Metal forming treatment. Forgings


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

  34KHN3MА   ( 34ХН3МА ) - Alloy structurall 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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