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Characteristics for grade     50KHG   ( 50ХГ )

      Grade :     50KHG   ( 50ХГ )
      Classification :   Spring structural steel
      Equivalent grades:   Go here



Chemical composition in % for grade   50KHG   ( 50ХГ )
C Si Mn Ni S P Cr Cu
0.46 - 0.540.17 - 0.370.7 - 1max   0.25max   0.035max   0.0350.9 - 1.2max   0.2


Temperature of critical points for grade   50KHG   ( 50ХГ ).
Ac1 = 750 ,      Ac3(Acm) = 775


Mechanical properties under Т=20oС for grade   50KHG   ( 50ХГ )
Assortment Dimension Direct. sв sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Rolled stock, GOST 14959-79     1270 1175 7 35 Guenching and drawing


    Brinell hardness for     50KHG   ( 50ХГ )   (annealing) ,       GOST 14959-79 HB 10 -1 = 269   MPa
    Brinell hardness for     50KHG   ( 50ХГ )   (without heat treatment) ,       GOST 14959 HB 10 -1 = 302   MPa


Technological properties for grade   50KHG   ( 50ХГ )
  Weldability: is not used.
 Flakes : not predisposed
Temper brittleness: not predisposed


Equivalent steels for grade     50KHG   ( 50ХГ )
Warning! Indicated both exact and nearest equivalents.
USAGermanyJapanFranceBulgariaPolandCzechia
-DIN,WNrJIS AFNORBDSPNCSN
5147
5147H
5150
5150H
5155
5155H
G51470
G51500
55Cr3
SUP9
SUP9A
45C4
55C3
50ChG
50HG
14160


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

  50KHG   ( 50ХГ ) - Spring structural 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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