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Grade : | 08KH22N6T ( 08Х22Н6Т ) ( 0Х22Н5Т ЭП53 ) |
Substitute: | 12Х18Н9Т, 12Х18Н10Т, 08Х18Н10Т |
Classification : | Corrosion-resistant steel for general purposes |
Equivalent grades: | Is absent |
C | Si | Mn | Ni | S | P | Cr | Cu | - |
max 0.08 | max 0.8 | max 0.8 | 5.3 - 6.3 | max 0.025 | max 0.035 | 21 - 23 | max 0.3 | (5 С - 0.65) Ti, остальное Fe |
Assortment | Dimension | Direct. | sв | sT | d5 | y | KCU | Heat treatment |
- | mm | - | MPa | MPa | % | % | kJ / m2 | - |
Pipe hot strain, GOST 9940-81 | 588 | 24 | ||||||
Pipe cooling strain, GOST 9941-81 | 588 | 20 | ||||||
Forging, GOST 25054-81 | 539 | 343 | 18-20 | 35-40 | 390-780 | |||
Sheet trick, GOST 7350-77 | 590 | 345 | 18 | 590 | Guenching 1000 - 1050oC,Cooling water, | |||
Sheet thin, GOST 5582-75 | 640 | 20 | Guenching 950 - 1050oC,Cooling water, |
Brinell hardness for 08KH22N6T ( 08Х22Н6Т ) , Forging GOST 25054-81 | HB 10 -1 = 140 - 200 MPa |
Weldability: | without limitations. |
Temper brittleness: | predisposed |
T | E 10- 5 | a 10 6 | l | r | C | R 10 9 |
Grade | MPa | 1/Grade | Watt/(m·Grade) | kg/m3 | J/(kg·Grade) | Ohm·m |
20 | 2.03 | 7600 | 740 | |||
100 | 2.01 | 9.6 | 14.6 | |||
200 | 1.93 | 13.8 | 15.9 | |||
300 | 1.81 | 16 | 18 | |||
400 | 1.65 | 16 | 19.6 | |||
500 | 1.62 | 16.4 | 21.3 | |||
600 | 1.54 | 16.2 | 22.6 | |||
700 | 1.41 | 16.5 | 23.8 | |||
800 | 1.39 | 16.7 | 26.3 | |||
900 | 17.1 | 29.7 | ||||
T | E 10- 5 | a 10 6 | l | r | C | R 10 9 |
B03 - Metal forming treatment. Forgings |
B23 - Sheets and Strips |
B33 - Sheets and Strips |
В62 - Steel pipes and connecting parts to them |
Mechanical properties : | |
sв | - 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/(m·Grade)] |
r | - Density , [kg/m3] |
C | - Specific heat ( range 20o - T ), [J/(kg·Grade)] |
R | - Electrical resistance , [Ohm·m] |
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 |
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