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Grade : | 08KH21N6M2T ( 08Х21Н6М2Т ) ( 0Х21Н6М2Т ЭП54 ) |
Classification : | High alloy high-temperature steel |
Equivalent grades: | Go here |
C | Si | Mn | Ni | S | P | Cr | Mo | Ti |
max 0.08 | max 0.8 | max 0.8 | 5.5 - 6.5 | max 0.025 | max 0.035 | 20 - 22 | 1.8 - 2.5 | 0.2 - 0.4 |
Assortment | Dimension | Direct. | sв | sT | d5 | y | KCU | Heat treatment |
- | mm | - | MPa | MPa | % | % | kJ / m2 | - |
Forging, GOST 25054-81 | 539 | 343 | 18-22 | 35-40 | 390-780 | |||
Bars, GOST 5949-75 | 60 | 590 | 345 | 25 | 45 | Guenching 950 - 1050oC,Cooling air, | ||
Sheet trick, GOST 7350-77 | 590 | 345 | 20 | 590 | Guenching 1025 - 1075oC,Cooling water, | |||
Sheet thin, GOST 5582-75 | 590 | 22 | Guenching 1000 - 1080oC,Cooling air, |
Brinell hardness for 08KH21N6M2T ( 08Х21Н6М2Т ) , Forging GOST 25054-81 | HB 10 -1 = 140 - 200 MPa |
Weldability: | without limitations. |
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 | 1.93 | 7850 | 700 | |||
100 | 1.85 | 9.5 | 14.6 | |||
200 | 1.78 | 13.8 | 15.9 | |||
300 | 1.69 | 16 | 17.5 | |||
400 | 1.64 | 16 | 19.2 | |||
500 | 1.62 | 16.3 | 20.5 | |||
600 | 1.53 | 16.7 | 21.7 | |||
700 | 1.39 | 17.1 | 21.7 | |||
800 | 1.36 | 17.1 | 24.3 | |||
900 | 17.4 | 25.5 | ||||
T | E 10- 5 | a 10 6 | l | r | C | R 10 9 |
USA | Germany | Japan | ||||
- | DIN,WNr | JIS | ||||
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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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