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Characteristics for grade     12DN2FL   ( 12ДН2ФЛ )



      Grade :     12DN2FL   ( 12ДН2ФЛ )
      Substitute:   08Н6Г4МЛ
      Classification :   Casting alloy steel for general purposes
      Equivalent grades:     Is absent



Chemical composition in % for grade   12DN2FL   ( 12ДН2ФЛ )
C Si Mn Ni S P V Cu
0.08 - 0.160.2 - 0.40.4 - 0.91.8 - 2.2max   0.035max   0.0350.08 - 0.151.2 - 1.5


Mechanical properties under Т=20oС for grade   12DN2FL   ( 12ДН2ФЛ )
Assortment Dimension Direct. sв sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Casting, GOST 977-88 to 100   638 540 12 20294Normalizing 910 - 930oC,Drawing 530 - 580oC,
Casting, GOST 977-88     785 638 12 25392 


    Brinell hardness for     12DN2FL   ( 12ДН2ФЛ )   ,       HB 10 -1 = 170 - 229   MPa


Technological properties for grade   12DN2FL   ( 12ДН2ФЛ )
  Weldability: without limitations.


Technological properties of the material   12DN2FL   ( 12ДН2ФЛ ) .
        Linear shrinkage : 1.9   %


Heat treatment of the material   12DN2FL   ( 12ДН2ФЛ )
Normalizing 910 - 930 ° C, Tempering 530 - 560 ° C or Pre - processing - Normalizing 940 - 950 ° C
Final processing - Hardening 890 - 910 ° C, Tempering 560 - 600 ° C


Physical properties for grade   12DN2FL   ( 12ДН2ФЛ )
T E 10- 5 a 10 6 l r C R 10 9
Grade MPa 1/Grade Watt/(m·Grade) kg/m3 J/(kg·Grade) Ohm·m
20 2.11   37 7860   210
100 2.06 11.5 38   487 268
200 1.96 12.3 38   504 339
300 1.89 12.9 38   517 426
400 1.81 13.1 37   529 545
500 1.74 13.7 34   559 641
600 1.55 14.2 32   575 787
700 1.35 14.1 29   617 939
800 1.27 10.8 27   689 1109
900   12.6 27   685 1158
T E 10- 5 a 10 6 l r C R 10 9



Types of delivery of grade   12DN2FL   ( 12ДН2ФЛ )
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]

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

  12DN2FL   ( 12ДН2ФЛ ) - 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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