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

Characteristics of the material 12KH18N12T   ( 12H18N12T,   121812 ).

Material : 12KH18N12T   ( 12H18N12T,   121812 )
Substitute: 12189, 12189, 121810
Classification : Corrosion-resistant high-temperature steel


Chemical composition in % of the material 12KH18N12T   ( 12H18N12T,   121812 ) .
C Si Mn Ni S P Cr Cu -
max   0.12max   0.8max   211 - 13max   0.02max   0.03517 - 19max   0.3 (5 - 0.7) Ti, Fe


Mechanical properties under =20o of the material 12KH18N12T   ( 12H18N12T,   121812 ) .
Assortment Dimension Direct. s sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Bars   longitudinal 550 200 40 55 Heating 1050 - 1100oC,Cooling water,
Pipe hotrolled   longitudinal 540   40   Heating 1050 - 1100oC,Cooling water,
Pipe   longitudinal 540 220 35 55 Heating 1050 - 1100oC,Cooling water,
Sheet trick     530 235 38   Guenching 1030 - 1080oC,Cooling water,


Physical properties of the material 12KH18N12T   ( 12H18N12T,   121812 ) .
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 2.05   15.1 7900   761
100 2.02 16.6 16.3 7860 460 800
200 1.97 17 17.6 7820 482 865
300 1.9 17.2 18.7 7780 507 930
400 1.81 17.5 20.4 7740 525 982
500 1.73 17.9 22.2 7690 545 1038
600 1.6 18.2 24.1 7650 563 1070
700 1.5 18.6 25.9 7600 579 1120
800   18.9 27.4 7560 590 1155
900   19.3 29.1 7510 603 1210
1000     30.8   616 1245
1100     32.3   625 1275
1200     34.1   637 1315
T E 10- 5 a 10 6 l r C R 10 9


Technological properties of the material 12KH18N12T   ( 12H18N12T,   121812 ) .
  Weldability: limited 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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