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Characteristics for grade     40KH15N7G7F2MS   ( 40Х15Н7Г7Ф2МС )



      Grade :   40KH15N7G7F2MS   ( 40Х15Н7Г7Ф2МС ) (   ЭИ388     4Х15Н7Г7Ф2МС   )
      Classification :   High alloy high-temperature steel
      Equivalent grades:     Is absent



Chemical composition in % for grade   40KH15N7G7F2MS   ( 40Х15Н7Г7Ф2МС )
C Si Mn Ni S P Cr Mo W V Cu
0.38 - 0.470.9 - 1.46 - 86 - 8max   0.02max   0.03514 - 160.65 - 0.95max   0.21.5 - 1.9max   0.3


Mechanical properties under Т=20oС for grade   40KH15N7G7F2MS   ( 40Х15Н7Г7Ф2МС )
Assortment Dimension Direct. sв sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Bar, GOST 5949-75 Ø 60   880 590 15 15290Guenching 1170 - 1190oC, water, Ageing 780 - 820oC, 8 - 10h, air,


Physical properties for grade   40KH15N7G7F2MS   ( 40Х15Н7Г7Ф2МС )
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 1.85     7800    
100   17 14 7770    
200 1.87 17.7 16 7720    
300 1.57 18.4 18 7680    
400 1.47 19.1 20 7630    
500 1.47 20.5 22 7580    
600 1.47 20.8 24 7530    
700 1.18   26      
800 1.18          
T E 10- 5 a 10 6 l r C R 10 9



Types of delivery of grade   40KH15N7G7F2MS   ( 40Х15Н7Г7Ф2МС )
В22 - Graded and shaped rolling
B23 - Sheets and Strips
В32 - Graded and shaped rolling
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]

  40KH15N7G7F2MS   ( 40Х15Н7Г7Ф2МС ) - 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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