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Characteristics for grade     33KHS   ( 33ХС )

      Grade :     33KHS   ( 33ХС )
      Classification :   Alloy structurall steel
      Equivalent grades:     Is absent



Chemical composition in % for grade   33KHS   ( 33ХС )
C Si Mn Ni S P Cr Cu
0.29 - 0.371 - 1.40.3 - 0.6max   0.3max   0.035max   0.0351.3 - 1.6max   0.3


Temperature of critical points for grade   33KHS   ( 33ХС ).
Ac1 = 755 ,      Ac3(Acm) = 830 ,       Ar1 = 715


Mechanical properties under Т=20oС for grade   33KHS   ( 33ХС )
Assortment Dimension Direct. sв sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Bar, GOST 4543-71 Ø 25   880 690 13 50780Guenching 920oC, water, Drawing 630oC, water,


    Brinell hardness for     33KHS   ( 33ХС )   (annealing) ,       GOST 4543-71 HB 10 -1 = 241   MPa


Technological properties for grade   33KHS   ( 33ХС )
  Weldability: hard weldability.
 Flakes : not predisposed
Temper brittleness: predisposed


Physical properties for grade   33KHS   ( 33ХС )
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 2.14   40 7640    
100 2.06 12 38   466  
200 1.96 12.8 37   508  
300 1.86 13.4 37   529  
400 1.76 13.7 35   563  
500 1.68 14.3 33   592  
600 1.57 14.7 31   622  
700 1.37 15 29   634  
800 1.27 12.4 27   664  
T E 10- 5 a 10 6 l r C R 10 9

Types of delivery of grade   33KHS   ( 33ХС )
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

  33KHS   ( 33ХС ) - 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

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