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 -> High alloy high-temperature steel

Characteristics of the material 18KH12VMBFR   ( 18H12VMBFR,   1812 ).

Material : 18KH12VMBFR   ( 18H12VMBFR,   1812 )
Classification : High alloy high-temperature steel


Chemical composition in % of the material 18KH12VMBFR   ( 18H12VMBFR,   1812 ) .
C Si Mn Ni S P Cr Mo W V Nb B
0.15 - 0.22max   0.5max   0.5max   0.06max   0.025max   0.0311 - 130.4 - 0.60.4 - 0.70.15 - 0.180.2 - 0.4max   0.003


Temperature of critical points of the grade 18KH12VMBFR   ( 18H12VMBFR,   1812 ).
Ac1 = 850 ,      Ac3(Acm) = 930


Mechanical properties under =20o of the material 18KH12VMBFR   ( 18H12VMBFR,   1812 ) .
Assortment Dimension Direct. s sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Pipe 30 x 6 dihedral 820 640 17 56900Normalizing 1050oC,Cooling air, Drawing 750oC, 3h,Cooling air,
Pipe 219 x 27 dihedral 750 590 15 43400Normalizing 1050oC,Cooling air, Drawing 750oC, 3h,Cooling air,
Bars 60   740 490 12 45390Guenching and drawing


    Brinell hardness of the material   18KH12VMBFR   ( 18H12VMBFR,   1812 )   (annealing) ,       HB 10 -1= 229   MPa


Physical properties of the material 18KH12VMBFR   ( 18H12VMBFR,   1812 ) .
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 2.28   27.6 7850    
100   11.15 21.8      
200 2.15 11.13 24      
300 2.09 11.42 25.1      
400 1.95 11.8 26.3      
500 1.88 12 27.2      
600 1.73 12.5 28      
700 1.55 12.65 28.9      
800   11.6        
T E 10- 5 a 10 6 l r C R 10 9


Technological properties of the material 18KH12VMBFR   ( 18H12VMBFR,   1812 ) .
  Weldability: is not used.



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-