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Characteristics of the material 45KHN2MF   ( 45HN2MF,   452 ).

Material : 45KHN2MF   ( 45HN2MF,   452 )
Classification : Alloy structurall steel


Chemical composition in % of the material 45KHN2MF   ( 45HN2MF,   452 ) .
C Si Mn Ni S P Cr Mo V Cu
0.42 - 0.50.17 - 0.370.5 - 0.81.3 - 1.8max   0.025max   0.0250.8 - 1.10.2 - 0.30.1 - 0.18max   0.3


Temperature of critical points of the grade 45KHN2MF   ( 45HN2MF,   452 ).
Ac1 = 735 ,      Ac3(Acm) = 825 ,       Ar3(Arcm) = 470 ,       Ar1 = 370 ,       Mn = 275


Mechanical properties under =20o of the material 45KHN2MF   ( 45HN2MF,   452 ) .
Assortment Dimension Direct. s sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Bar     1420 1275 7 35390Guenching 860oC, oil,


    Brinell hardness of the material   45KHN2MF   ( 45HN2MF,   452 )   (annealing) ,       HB 10 -1= 269   MPa


Physical properties of the material 45KHN2MF   ( 45HN2MF,   452 ) .
T E 10- 5 a 10 6 l r C R 10 9
Grade MPa 1/Grade Watt/(mGrade) kg/m3 J/(kgGrade) Ohmm
20 2.16   34     300
100 2.07 11 34   480 363
200 1.97 11.6 33   500 460
300 1.88 12.1 32   520 557
400 1.76 12.7 31   540 677
500 1.68 13.3 30   555 822
600 1.52 13.7 29     993
700 1.36 13.9 27     1160
800 1.28 11.9 26      
T E 10- 5 a 10 6 l r C R 10 9


Technological properties of the material 45KHN2MF   ( 45HN2MF,   452 ) .
  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]

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/(mGrade)]
r - Density , [kg/m3]
C - Specific heat ( range 20o - T ), [J/(kgGrade)]
R - Electrical resistance , [Ohmm]

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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