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Characteristics for grade     40KH10S2M   ( 40Х10С2М )

      Grade :   40KH10S2M   ( 40Х10С2М ) (   4Х10С2М     ЭИ107   )
      Classification :   High alloy high-temperature steel
      Equivalent grades:   Go here



Chemical composition in % for grade   40KH10S2M   ( 40Х10С2М )
C Si Mn Ni S P Cr Mo Ti Cu
0.35 - 0.451.9 - 2.6max   0.8max   0.6max   0.025max   0.039 - 10.50.7 - 0.9max   0.2max   0.3


Temperature of critical points for grade   40KH10S2M   ( 40Х10С2М ).
Ac1 = 810 ,      Ac3(Acm) = 950 ,       Ar3(Arcm) = 845 ,       Ar1 = 700


Mechanical properties under Т=20oС for grade   40KH10S2M   ( 40Х10С2М )
Assortment Dimension Direct. sв sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Bar, GOST 5949-75 Ø 60   930 735 10 35200Guenching 1010 - 1050oC, air, Drawing 720 - 780oC, oil,


    Brinell hardness for     40KH10S2M   ( 40Х10С2М )   (annealing) ,     Bar GOST 5949-75 HB 10 -1 = 197 - 269   MPa


Technological properties for grade   40KH10S2M   ( 40Х10С2М )
  Weldability: hard weldability.
 Flakes : not predisposed
Temper brittleness: not predisposed


Physical properties for grade   40KH10S2M   ( 40Х10С2М )
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   17 7620    
100 2.11 10 18 7610   906
200 2.05 11 20     958
300 2.02 11 22     1010
400 1.96 11 22   532 1062
500 1.87   24   561 1114
600 1.72   25   586 1166
700 1.51   26     1216
800 1.29 11   7430    
T E 10- 5 a 10 6 l r C R 10 9


Equivalent steels for grade     40KH10S2M   ( 40Х10С2М )
Warning! Indicated both exact and nearest equivalents.
GermanyJapanFranceEnglandEuropeanItalySpainChinaBulgariaHungaryPolandSouth Korea
DIN,WNrJIS AFNORBSEN UNIUNEGBBDSMSZPNKS
1.4731
X40CrSiMo10-2
SUH3
Z40CSD10
0/4
X40CrSiMo10-2
X40CrSiMo10
VM12D
F.3221
X40CrSiMo10-02
1Cr18Mn8Ni5N
4Cr10Si2Mo
4Ch10S2M
X40CrSiMo10-2
SZ4
H10S2M
STR3


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

  40KH10S2M   ( 40Х10С2М ) - High alloy high-temperature 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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