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Characteristics for grade     08KH18G8N2T   ( 08Х18Г8Н2Т )



      Grade :   08KH18G8N2T   ( 08Х18Г8Н2Т ) (   0Х18Г8Н2Т     КО-3   )
      Substitute:   12Х18Н9Т
      Classification :   Corrosion-resistant steel for general purposes
      Equivalent grades:     Is absent



Chemical composition in % for grade   08KH18G8N2T   ( 08Х18Г8Н2Т )
C Si Mn Ni S P Cr Ti Cu
max   0.08max   0.87 - 91.8 - 2.8max   0.025max   0.03517 - 190.2 - 0.5max   0.3


Mechanical properties under Т=20oС for grade   08KH18G8N2T   ( 08Х18Г8Н2Т )
Assortment Dimension Direct. sв sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Forging, GOST 25054-81 to 600 longitudinal 588 265      
Sheet trick, GOST 7350-77     590 345 20  590Guenching 980 - 1020oC,Cooling water,


Technological properties for grade   08KH18G8N2T   ( 08Х18Г8Н2Т )
  Weldability: without limitations.


Physical properties for grade   08KH18G8N2T   ( 08Х18Г8Н2Т )
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 2.12   21 7700   710
100 2.03 12.3     462  
200 1.95          
300 1.84          
400 1.77          
500 1.64          
600 1.67          
700 1.46          
800 1.61          
T E 10- 5 a 10 6 l r C R 10 9



Types of delivery of grade   08KH18G8N2T   ( 08Х18Г8Н2Т )
B03 - Metal forming treatment. Forgings
B23 - Sheets and Strips
B33 - Sheets and Strips


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

  08KH18G8N2T   ( 08Х18Г8Н2Т ) - Corrosion-resistant 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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