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

Characteristics of the material 15KH5M   ( 15H5M,   155 ).

Material : 15KH5M   ( 15H5M,   155 )
Classification : Low alloy high-temperature steel


Chemical composition in % of the material 15KH5M   ( 15H5M,   155 ) .
C Si Mn Ni S P Cr Mo W V Ti Cu
max   0.15max   0.5max   0.5max   0.6max   0.025max   0.034.5 - 60.45 - 0.6max   0.3max   0.05max   0.03max   0.2


Temperature of critical points of the grade 15KH5M   ( 15H5M,   155 ).
Ac1 = 815 ,      Ac3(Acm) = 848 ,       Ar3(Arcm) = 775 ,       Ar1 = 718


Mechanical properties under =20o of the material 15KH5M   ( 15H5M,   155 ) .
Assortment Dimension Direct. s sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Bar 90   390 215 22 501180Annealing 840 - 860oC,Cooling oven,
Sheet trick     470 235 18   Annealing 840 - 870oC,Cooling air,


    Brinell hardness of the material   15KH5M   ( 15H5M,   155 )   (heat treatment) ,       HB 10 -1= 170   MPa
    Brinell hardness of the material   15KH5M   ( 15H5M,   155 )   (hot-rolled, annealing) ,       HB 10 -1= 217   MPa


Physical properties of the material 15KH5M   ( 15H5M,   155 ) .
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 2.11     7750   430
100   11.3 37 7730 483  
200   11.6 36 7700    
300   11.9 35 7670    
400 1.78 12.2 34 7640    
500 1.45 12.3 33 7610    
600 1.02 12.5   7580    
T E 10- 5 a 10 6 l r C R 10 9


Technological properties of the material 15KH5M   ( 15H5M,   155 ) .
  Weldability: hard weldability.
 Flakes : predisposed
Temper brittleness: not predisposed



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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