Database of Steel and Alloy (Marochnik)

  Home     Steel and Alloy     Search     Equivalent Grades     GOST Standards     Grading     Contacts  
   
YOU HERE:   Steel and Alloy   ->   Structural steel

Characteristics for grade     30KHGT   ( 30ХГТ )

      Grade :     30KHGT   ( 30ХГТ )
      Substitute:   18ХГТ, 20ХН2М, 25ХГТ, 12Х2Н4А
      Classification :   Alloy structurall steel
      Equivalent grades:   Go here
Grade   30KHGT   ( 30ХГТ ):   supplier   Auremo   www.auremo.biz
Sale:   Russia +7 (812) 680-16-77 ,   Germany +49 (208) 205-83-073,     info [a] auremo.org



Chemical composition in % for grade   30KHGT   ( 30ХГТ )
C Si Mn Ni S P Cr Ti Cu
0.24 - 0.320.17 - 0.370.8 - 1.1max   0.3max   0.035max   0.0351 - 1.30.03 - 0.09max   0.3


Temperature of critical points for grade   30KHGT   ( 30ХГТ ).
Ac1 = 770 ,      Ac3(Acm) = 825 ,       Ar3(Arcm) = 740 ,       Ar1 = 665


Mechanical properties under Т=20oС for grade   30KHGT   ( 30ХГТ )
Assortment Dimension Direct. sв sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Bar, GOST 4543-71     1470 1275 9 40590Guenching and drawing
Forging to 100   835 685 13 42590Guenching and drawing


    Brinell hardness for     30KHGT   ( 30ХГТ )   (annealing) ,       GOST 4543-71 HB 10 -1 = 229   MPa


Technological properties for grade   30KHGT   ( 30ХГТ )
  Weldability: limited weldability.
 Flakes : not predisposed
Temper brittleness: predisposed


Physical properties for grade   30KHGT   ( 30ХГТ )
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   36      
100 2.02 10.5 37   495  
200 1.95 12 36   508  
300 1.89 12.7 34   525  
400 1.74 13.3 33   537  
500 1.69 13.8 31   567  
600 1.57 14 29   588  
700 1.38   28   626  
800 1.32   28   705  
T E 10- 5 a 10 6 l r C R 10 9


Equivalent steels for grade     30KHGT   ( 30ХГТ )
Warning! Indicated both exact and nearest equivalents.
GermanyCzechia
DIN,WNrCSN
30MnCrTi
14231

Types of delivery of grade   30KHGT   ( 30ХГТ )
В22 - Graded and shaped rolling
B23 - Sheets and Strips
В32 - Graded and shaped rolling


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

  30KHGT   ( 30ХГТ ) - Alloy structurall steel: 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

    ©   2003 - 2018         Database of Steel and Alloy (russian title is the Marochnik)
Administration of the Marochnik is not responsible for the content's use.
Previous address of this website was splav.kharkov.com
Рейтинг@Mail.ru