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Characteristics for grade     15KH12VNMF   ( 15Х12ВНМФ )

      Grade :   15KH12VNMF   ( 15Х12ВНМФ ) (   1Х12ВНМФ     ЭИ802   )
      Classification :   High alloy high-temperature steel
      Equivalent grades:   Go here




Chemical composition in % for grade   15KH12VNMF   ( 15Х12ВНМФ )
C Si Mn Ni S P Cr Mo W V Ti Cu
0.12 - 0.18max   0.40.5 - 0.90.4 - 0.8max   0.025max   0.0311 - 130.5 - 0.70.7 - 1.10.15 - 0.3max   0.2max   0.3


Temperature of critical points for grade   15KH12VNMF   ( 15Х12ВНМФ ).
Ac1 = 800 - 810 ,      Ac3(Acm) = 860 - 880


Mechanical properties under Т=20oС for grade   15KH12VNMF   ( 15Х12ВНМФ )
Assortment Dimension Direct. sв sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Bar, GOST 5949-75     740 590 15 45590 
Bar, GOST 18968-73     740 590-73515 50590Normalizing and drawing
Bars, GOST 5582-75 60   740 590 15 45590Annealing 900 - 950oC, oven, Guenching 1000 - 1020oC, oil, Drawing 600 - 700oC, air,


    Brinell hardness for     15KH12VNMF   ( 15Х12ВНМФ )   (annealing) ,     Bar GOST 5949-75 HB 10 -1 = 229   MPa
    Brinell hardness for     15KH12VNMF   ( 15Х12ВНМФ )   (normalize, tempering) ,     Bar GOST 18968-73 HB 10 -1 = 229 - 269   MPa


Technological properties for grade   15KH12VNMF   ( 15Х12ВНМФ )
  Weldability: hard weldability.


Physical properties for grade   15KH12VNMF   ( 15Х12ВНМФ )
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 2.16     7850    
100   10 24   477  
200   10.5 25.5   498  
300 2 10.7 25.9   545  
400 1.94 11 26.3   625  
500 1.84 11.2 26.8   741  
600 1.66 11.6 27.2   896  
700     27.2      
800     27.6      
T E 10- 5 a 10 6 l r C R 10 9



Equivalent steels for grade     15KH12VNMF   ( 15Х12ВНМФ )
Warning! Indicated both exact and nearest equivalents.
Poland
PN
15H12WMF


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

  15KH12VNMF   ( 15Х12ВНМФ ) - 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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