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Characteristics for grade     50KHGА   ( 50ХГА )

      Grade :     50KHGА   ( 50ХГА )
      Classification :   Spring structural steel
      Equivalent grades:   Go here



Chemical composition in % for grade   50KHGА   ( 50ХГА )
C Si Mn Ni S P Cr Cu
0.47 - 0.520.17 - 0.370.8 - 1max   0.25max   0.025max   0.0250.95 - 1.2max   0.2


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


Mechanical properties under Т=20oС for grade   50KHGА   ( 50ХГА )
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     50KHGА   ( 50ХГА )   (annealing) ,       GOST 14959-79 HB 10 -1 = 269   MPa
    Brinell hardness for     50KHGА   ( 50ХГА )   (without heat treatment) ,       GOST 14959 HB 10 -1 = 302   MPa


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


Equivalent steels for grade     50KHGА   ( 50ХГА )
Warning! Indicated both exact and nearest equivalents.
USAGermanyJapanFranceEnglandEuropeanItalyBelgiumSpainChinaSwedenBulgariaAustraliaSouth Korea
-DIN,WNrJIS AFNORBSEN UNINBNUNEGBSSBDSASKS
5147
5147H
5150
5150H
5155
5155H
5160
G51470
G51500
1.7176
55Cr3
SUP9
SUP9A
55C3
525A
525A58
525A61
525H60
527A60
55Cr3
55Cr3
55Cr3
55Cr3
F.1431
55CrMnA
2253
50ChGA
5155
XK5155S
SPS5
SPS5A

Types of delivery of grade   50KHGА   ( 50ХГА )
В22 - Graded and shaped rolling
B23 - Sheets and Strips
В32 - Graded and shaped rolling
B33 - Sheets and Strips
В72 - Medium-high and high-carbon steel wire


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

  50KHGА   ( 50ХГА ) - 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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