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Characteristics for grade     25KHGM   ( 25ХГМ )



      Grade :     25KHGM   ( 25ХГМ )
      Classification :   Alloy structurall steel
      Equivalent grades:   Go here



Chemical composition in % for grade   25KHGM   ( 25ХГМ )
C Si Mn Ni S P Cr Mo Cu
0.23 - 0.290.17 - 0.370.9 - 1.2max   0.3max   0.035max   0.0350.9 - 1.20.2 - 0.3max   0.3


Mechanical properties under Т=20oС for grade   25KHGM   ( 25ХГМ )
Assortment Dimension Direct. sв sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Bar, GOST 4543-71     1180 1080 10 45780Guenching and drawing


    Brinell hardness for     25KHGM   ( 25ХГМ )   ,     Rolled stock GOST 4543-71 HB 10 -1 = -1   MPa


Technological properties for grade   25KHGM   ( 25ХГМ )
 Flakes : not predisposed
Temper brittleness: not predisposed


Equivalent steels for grade     25KHGM   ( 25ХГМ )
Warning! Indicated both exact and nearest equivalents.
GermanyJapan
DIN,WNrJIS
20CrMo5
SCM421



Types of delivery of grade   25KHGM   ( 25ХГМ )
В22 - Graded and shaped rolling
B23 - Sheets and Strips
В32 - Graded and shaped rolling


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

  25KHGM   ( 25ХГМ ) - 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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