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

Characteristics of the material KHN77TYUR   ( HN77TJUR,   77 ).

Material : KHN77TYUR   ( HN77TJUR,   77 )
Classification : Hidh-temperature or heat-resistant alloy


Chemical composition in % of the material KHN77TYUR   ( HN77TJUR,   77 ) .
Fe C Si Mn Ni S P Cr Ce TiAl B
max   4max   0.07max   0.6max   0.469.078 - 78max   0.007max   0.01519 - 22max   0.022.4 - 2.80.6 - 1max   0.01
Comment: Ni is a basis; the percentage of Ni is given approximately.


Mechanical properties under =20o of the material KHN77TYUR   ( HN77TJUR,   77 ) .
Assortment Dimension Direct. s sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Sheet to 3.9   930   20   Guenching 1080 - 1120oC,Cooling water, Ageing 750oC, 5h,
Bar   longitudinal 950 620 15 15400Guenching 1080oC, 8h, air, Ageing 700oC, 16h, air,


    Brinell hardness of the material   KHN77TYUR   ( HN77TJUR,   77 )   (quenching) ,       HB 10 -1= 255 - 321   MPa


Physical properties of the material KHN77TYUR   ( HN77TJUR,   77 ) .
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 1.96   12.6 8200    
100   12.67 13.9 8180   1247
200   12.9 15.6 8140   1262
300   13.3 17.2 8110   1282
400   13.8 18.8 8070   1300
500   14.2 20.9 8040   1308
600 1.57 14.6 23.5 8000   1288
700 1.47 15.1 25.1 7960   1272
800 1.28 15.5 28.2 7920   1253
900   16.2 31.1 7870   1232
1000   16.8        
T E 10- 5 a 10 6 l r C R 10 9


Technological properties of the material KHN77TYUR   ( HN77TJUR,   77 ) .
  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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