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Metals -> Corrosion-resistant (stainless) steel -> Corrosion-resistant high-temperature steel

Characteristics of the material 12KH18N9T   ( 12H18N9T,   12189 ).

Material : 12KH18N9T   ( 12H18N9T,   12189 )
Substitute: 1014144, 121794, 121810
Classification : Corrosion-resistant high-temperature steel


Chemical composition in % of the material 12KH18N9T   ( 12H18N9T,   12189 ) .
C Si Mn Ni S P Cr Cu -
max   0.12max   0.8max   28 - 9.5max   0.02max   0.03517 - 19max   0.3 (5 - 0.8) Ti, Fe


Mechanical properties under =20o of the material 12KH18N9T   ( 12H18N9T,   12189 ) .
Assortment Dimension Direct. s sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Forging to 1000   510 216 35 40 Guenching 1050 - 1100oC,
Bars to 60   540 196 40 55 Guenching 1020 - 1100oC,Cooling air,
Sheet trick     530 215 38   Guenching 1030 - 1080oC,Cooling water,


    Brinell hardness of the material   12KH18N9T   ( 12H18N9T,   12189 )   ,     Forging HB 10 -1= 170   MPa


Physical properties of the material 12KH18N9T   ( 12H18N9T,   12189 ) .
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 1.95     7900   725
100 1.89 16.6 16 7860 469 792
200 1.82 17 18 7820 486 861
300 1.75 17.6 20 7780 498 920
400 1.67 18 21 7740 511 976
500   18.3 23 7690 519 1028
600 1.53 18.6 25 7650 528 1075
700 1.43 18.9 26 7600 532 1117
800 1.35 19.3 28 7560 544 1149
900   19.5 29 7510 548 1176
1000   20.1        
T E 10- 5 a 10 6 l r C R 10 9


Technological properties of the material 12KH18N9T   ( 12H18N9T,   12189 ) .
  Weldability: without limitations.



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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