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Characteristics for grade     25KHGT   ( 25ХГТ )

      Grade :     25KHGT   ( 25ХГТ )
      Substitute:   18ХГТ, 30ХГТ, 25ХГМ
      Classification :   Alloy structurall steel
      Equivalent grades:     Is absent



Chemical composition in % for grade   25KHGT   ( 25ХГТ )
C Si Mn Ni S P Cr Ti Cu
0.22 - 0.290.17 - 0.370.8 - 1.1max   0.3max   0.035max   0.0351 - 1.30.03 - 0.09max   0.3


Mechanical properties under Т=20oС for grade   25KHGT   ( 25ХГТ )
Assortment Dimension Direct. sв sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Bar, GOST 4543-71     1270 980 10 50690Normalizing 880 - 895oC, air, Guenching 850oC, oil, Drawing 200oC, water,


    Brinell hardness for     25KHGT   ( 25ХГТ )   (annealing) ,       GOST 4543-71 HB 10 -1 = 217   MPa


Technological properties for grade   25KHGT   ( 25ХГТ )
 Flakes : predisposed
Temper brittleness: predisposed


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

  25KHGT   ( 25ХГТ ) - 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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