| Grade : | 12Kh2MFSR ( 12Х2МФСР ) |
| Classification : | Low alloy high-temperature steel |
| Equivalent grades: | Is absent |
Chemical composition in % for grade 12Kh2MFSR ( 12Х2МФСР )
| C | Si | Mn | Ni | S | P | Cr | Mo | V | Cu | B |
| 0.08 - 0.15 | 0.4 - 0.7 | 0.4 - 0.7 | max 0.25 | max 0.025 | max 0.025 | 1.6 - 1.9 | 0.5 - 0.7 | 0.2 - 0.35 | max 0.25 | 0.002 - 0.005 |
Temperature of critical points for grade 12Kh2MFSR ( 12Х2МФСР ).
| Ac1 = 775 - 825 , Ac3(Acm) = 865 - 925 , Ar3(Arcm) = 770 - 820 , Ar1 = 715 - 765 |
Mechanical properties under Т=20oС for grade 12Kh2MFSR ( 12Х2МФСР )
| Assortment | Dimension | Direct. | sв | sT | d5 | y | KCU | Heat treatment |
| - | mm | - | MPa | MPa | % | % | kJ / m2 | - |
| Pipe | Ø 42 x 6 | 240 | 480 | 24 | 2700 | |||
| Pipe | Ø 32 x 5 | 530 | 330 | 22 | 2300 | |||
| Pipe | Ø 273 x 36 | 600 | 440 | 24 | 72 | 1900 |
Physical properties for grade 12Kh2MFSR ( 12Х2МФСР )
| 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 | 29.4 | 7800 | ||||
| 100 | 10.95 | |||||
| 200 | 11.95 | |||||
| 300 | 12.65 | |||||
| 400 | 13.15 | |||||
| 500 | 13.7 | |||||
| 600 | 14 | |||||
| 700 | 14.3 | |||||
| T | E 10- 5 | a 10 6 | l | r | C | R 10 9 |
Specification :
| 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] |
12Kh2MFSR ( 12Х2МФСР ) - Low alloy high-temperature steel: chemical composition, mechanical and physical properties, hardness
Database of steels and alloys (Marochnik) contains information about chemical composition and properties more then 3000 steels and alloys
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