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Characteristics for grade     27KHGR   ( 27ХГР )

      Grade :     27KHGR   ( 27ХГР )
      Classification :   Alloy structurall steel
      Equivalent grades:   Go here



Chemical composition in % for grade   27KHGR   ( 27ХГР )
C Si Mn Ni S P Cr Ti Cu B
0.25 - 0.310.17 - 0.370.7 - 1max   0.3max   0.035max   0.0350.7 - 1max   0.06max   0.30.001 - 0.005


Temperature of critical points for grade   27KHGR   ( 27ХГР ).
Ac1 = 715 ,      Ac3(Acm) = 760


Mechanical properties under Т=20oС for grade   27KHGR   ( 27ХГР )
Assortment Dimension Direct. sв sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Bar, GOST 4543-71     1370 1175 8 45590Guenching and drawing


    Brinell hardness for     27KHGR   ( 27ХГР )   (annealing) ,       GOST 4543-71 HB 10 -1 = 217   MPa


Technological properties for grade   27KHGR   ( 27ХГР )
  Weldability: hard weldability.
 Flakes : predisposed
Temper brittleness: predisposed


Equivalent steels for grade     27KHGR   ( 27ХГР )
Warning! Indicated both exact and nearest equivalents.
GermanyCzechia
DIN,WNrCSN
1.5526
30MnB4
14230


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

  27KHGR   ( 27ХГР ) - 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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