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Metals -> High-temperature or heat-resistant steel and alloy -> High alloy high-temperature steel

Characteristics of the material 15KH12VNMF   ( 15H12VNMF,   1512 ).

Material : 15KH12VNMF   ( 15H12VNMF,   1512 )
Classification : High alloy high-temperature steel


Chemical composition in % of the material 15KH12VNMF   ( 15H12VNMF,   1512 ) .
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 of the grade 15KH12VNMF   ( 15H12VNMF,   1512 ).
Ac1 = 800 - 810 ,      Ac3(Acm) = 860 - 880


Mechanical properties under =20o of the material 15KH12VNMF   ( 15H12VNMF,   1512 ) .
Assortment Dimension Direct. s sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Bar   longitudinal 690 510 18 57700Guenching 1050oC, oil, Drawing 740oC,Cooling air,
Bars 60   740 590 15 45590Annealing 900 - 950oC, oven, Guenching 1000 - 1020oC, oil, Drawing 600 - 700oC, air,


    Brinell hardness of the material   15KH12VNMF   ( 15H12VNMF,   1512 )   (annealing) ,       HB 10 -1= 229   MPa


Physical properties of the material 15KH12VNMF   ( 15H12VNMF,   1512 ) .
T E 10- 5 a 10 6 l r C R 10 9
Grade MPa 1/Grade Watt/(mGrade) kg/m3 J/(kgGrade) Ohmm
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


Technological properties of the material 15KH12VNMF   ( 15H12VNMF,   1512 ) .
  Weldability: hard weldability.



Specification :
Mechanical properties :
s - 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/(mGrade)]
r - Density , [kg/m3]
C - Specific heat ( range 20o - T ), [J/(kgGrade)]
R - Electrical resistance , [Ohmm]

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

Database of steels and alloys (Marochnik) contains information about chemical composition and properties of 1500 steels and alloys (stainless steel, alloy steel, carbone steel, structural steel, tool steel, cast iron, aluminum alloy, titanium alloy, copper alloy, nickel alloy, magnesium alloy and others).
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