Database of Steel and Alloy (Marochnik)

en
HOME STANDARDS METALS SEARCH BULLETIN BOARD GRADING EDUCATION IN UKRAINE CONTACTS
 
(495)
(495)
Metals -> High-temperature or heat-resistant steel and alloy -> Hidh-temperature or heat-resistant alloy

Characteristics of the material KHN78T   ( HN78T,   78 ).

Material : KHN78T   ( HN78T,   78 )
Substitute: 38, 1225167, 202318
Classification : Hidh-temperature or heat-resistant alloy


Chemical composition in % of the material KHN78T   ( HN78T,   78 ) .
Fe C Si Mn Ni S P Cr Ti
max   6max   0.12max   0.8max   0.770.003 - 80.85max   0.012max   0.01519 - 220.15 - 0.35


Mechanical properties under =20o of the material KHN78T   ( HN78T,   78 ) .
Assortment Dimension Direct. s sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Sheet to 3.9   860   35   Guenching 980 - 1020oC,Cooling air,
Bar to 30   700 300 30 50  
Sheet 4 - 11   880   30   Guenching 980 - 1020oC,Cooling air,
Forging     588 196 25 35  


    Brinell hardness of the material   KHN78T   ( HN78T,   78 )   (quenching) ,       HB 10 -1= 200   MPa


Physical properties of the material KHN78T   ( HN78T,   78 ) .
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 2.24     8400   1090
100 2.19 12.2 14.6 8380   1099
200 2.13 13 16.7 8340   1108
300 2.06 13.4 18.5 8310   1117
400 2 13.8 20.6 8260   1127
500 1.93 14.1 22.7 8220   1153
600 1.84 14.7 24.8 8180   1135
700   15.4 26.8 8130   1126
800   15.5 28.9 8090   1123
900       8040    
T E 10- 5 a 10 6 l r C R 10 9


Technological properties of the material KHN78T   ( HN78T,   78 ) .
  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).
Helpfull for specialists in material technology, structural engineer, mechanical engineer, metallurgy and metal trader

Top

©   2003 - 2009   All rights reserved.       About program.
The entire risk as to use of the Database of Steel and Alloy (Marochnik) content is assumed by you the user



| | | |
© 2002 - 2009 .
 
-12345-