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Characteristics for grade     35KH   ( 35Х )

      Grade :     35KH   ( 35Х )
      Substitute:   40Х, 35ХР
      Classification :   Alloy structurall steel
      Equivalent grades:   Go here
Grade   35KH   ( 35Х ):   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   35KH   ( 35Х )
C Si Mn Ni S P Cr Cu
0.31 - 0.390.17 - 0.370.5 - 0.8max   0.3max   0.035max   0.0350.8 - 1.1max   0.3


Temperature of critical points for grade   35KH   ( 35Х ).
Ac1 = 743 ,      Ac3(Acm) = 782 ,       Ar3(Arcm) = 730 ,       Ar1 = 693 ,       Mn = 360


Mechanical properties under Т=20oС for grade   35KH   ( 35Х )
Assortment Dimension Direct. sв sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Bar, GOST 4543-71 Ø 25   910 735 11 45690Guenching 860oC, oil, Drawing 500oC, water,
Forging to 100   655 490 16 45590Guenching and drawing
Forging 100 - 300   615 395 15 40540Guenching and drawing


    Brinell hardness for     35KH   ( 35Х )   (annealing) ,       GOST 4543-71 HB 10 -1 = 197   MPa
    Brinell hardness for     35KH   ( 35Х )   (cold-worked) ,       GOST 4543-71 HB 10 -1 = 255   MPa
    Brinell hardness for     35KH   ( 35Х )   ,     Bar GOST 10702-78 HB 10 -1 = 170   MPa


Technological properties for grade   35KH   ( 35Х )
  Weldability: limited weldability.
 Flakes : weakly predisposed
Temper brittleness: predisposed


Physical properties for grade   35KH   ( 35Х )
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          
100   11.3 47      
200   12 43      
300 2.07 12.9 40      
400   13.7 36      
500 1.76 14.2        
600   14.6        
T E 10- 5 a 10 6 l r C R 10 9


Equivalent steels for grade     35KH   ( 35Х )
Warning! Indicated both exact and nearest equivalents.
USAGermanyJapanFranceEnglandEuropeanItalyBelgiumSpainChinaBulgariaHungaryPolandAustraliaSouth Korea
-DIN,WNrJIS AFNORBSEN UNINBNUNEGBBDSMSZPNASKS
5132
5132H
5135
5135H
G51350
H51320
1.7033
34Cr
34Cr4
34CrS4
SCr430
SCr430H
SCr435
SCr435H
32C4
32C4FF
34Cr4
18C
34Cr4
530A32
530H32
530M32
1.7033
34Cr4
34Cr4KD
34Cr4
34Cr4KB
34Cr4
34Cr4
35Cr4
F.8221
35Cr
34Cr4
35Ch
34Cr4
Cr1Z
30H
5132
SCr430
SCr430H

Types of delivery of grade   35KH   ( 35Х )
B03 - Metal forming treatment. Forgings
В22 - Graded and shaped rolling
B23 - Sheets and Strips
В32 - Graded and shaped rolling
В71 - Low-carbon steel wire


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

  35KH   ( 35Х ) - 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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