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

Characteristics of the material 31KH19N9MVBT   ( 31H19N9MVBT,   31199 ).

Material : 31KH19N9MVBT   ( 31H19N9MVBT,   31199 )
Classification : High alloy high-temperature steel


Chemical composition in % of the material 31KH19N9MVBT   ( 31H19N9MVBT,   31199 ) .
C Si Mn Ni S P Cr Mo W Nb Ti
0.28 - 0.35max   0.80.8 - 1.58 - 10max   0.02max   0.03518 - 201 - 1.51 - 1.50.2 - 0.50.2 - 0.5


Mechanical properties under =20o of the material 31KH19N9MVBT   ( 31H19N9MVBT,   31199 ) .
Assortment Dimension Direct. s sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Bars   longitudinal 600 300 30 40 Heating 1140 - 1180oC, water, Ageing 750 - 800oC, 15h, air,
Forging   longitudinal 700 300 35 40600Heating 1180oC, water, Ageing 800oC, 15h, air,
Forging   tangent 700 300 27 30400Heating 1180oC, water, Ageing 800oC, 15h, air,


Physical properties of the material 31KH19N9MVBT   ( 31H19N9MVBT,   31199 ) .
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 2.05     7960    
100     15.1     850
200     16.3     900
300 1.9   18.4     980
400 1.85 16.02 20.05     1020
500 1.79 16.37 21.7     1080
550 1.75          
600 1.7 16.75 23.4     1100
650 1.65          
700 1.6 16.97 25.1     1150
800   17.94        
T E 10- 5 a 10 6 l r C R 10 9


Technological properties of the material 31KH19N9MVBT   ( 31H19N9MVBT,   31199 ) .
  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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