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Characteristics for grade     25KH2GNMFL   ( 25Х2ГНМФЛ )



      Grade :     25KH2GNMFL   ( 25Х2ГНМФЛ )
      Classification :   Casting alloy steel for general purposes
      Equivalent grades:     Is absent



Chemical composition in % for grade   25KH2GNMFL   ( 25Х2ГНМФЛ )
C Si Mn Ni S P Cr Mo V
0.22 - 0.30.3 - 0.70.7 - 1.10.3 - 0.9max   0.025max   0.0251.4 - 20.2 - 0.50.04 - 0.2


Mechanical properties under Т=20oС for grade   25KH2GNMFL   ( 25Х2ГНМФЛ )
Assortment Dimension Direct. sв sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Casting, GOST 977-88     638 491 12 30589 
Casting, GOST 977-88     1275 1079 5 25392 


Heat treatment of the material   25KH2GNMFL   ( 25Х2ГНМФЛ )
Pre - processing - Normalizing 900 - 950 ° C, Tempering 650 - 700 ° C
Final processing - Hardening 880 - 920 ° C, Tempering 630 - 700 ° C
Pre - processing - Normalizing 900 - 950 ° C, Tempering 660 - 680 ° C
Final processing - Hardening 900 - 950 ° C, Tempering 260 - 300 ° C



Types of delivery of grade   25KH2GNMFL   ( 25Х2ГНМФЛ )
B82 - Steel Castings


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]

  25KH2GNMFL   ( 25Х2ГНМФЛ ) - Casting alloy steel for general purposes: 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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