Database of Steel and Alloy (Marochnik)

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Characteristics of the material 40KH2N2M   ( 40H2N2M,   4022 ).

Material : 40KH2N2M   ( 40H2N2M,   4022 ) ( 401 )
Substitute: 3822
Classification : Alloy structurall steel


Chemical composition in % of the material 40KH2N2M   ( 40H2N2M,   4022 ) .
C Si Mn Ni S P Cr Mo Cu
0.35 - 0.420.17 - 0.370.3 - 0.61.35 - 1.75max   0.025max   0.0251.25 - 1.650.2 - 0.3max   0.3


Temperature of critical points of the grade 40KH2N2M   ( 40H2N2M,   4022 ).
Ac1 = 740 ,      Ac3(Acm) = 805


Mechanical properties under =20o of the material 40KH2N2M   ( 40H2N2M,   4022 ) .
Assortment Dimension Direct. s sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Bar 25   1080 930 10 45780Guenching and drawing


    Brinell hardness of the material   40KH2N2M   ( 40H2N2M,   4022 )   (annealing) ,       HB 10 -1= 255   MPa


Technological properties of the material 40KH2N2M   ( 40H2N2M,   4022 ) .
  Weldability: hard weldability.
 Flakes : predisposed
Temper brittleness: not predisposed



Specification :
Mechanical properties :
s - 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

Database of steels and alloys (Marochnik) contains information about chemical composition and properties of 1500 steels and alloys (stainless steel, alloy steel, carbone steel, structural steel, tool steel, cast iron, aluminum alloy, titanium alloy, copper alloy, nickel alloy, magnesium alloy and others).
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