| Grade : | 36KH2N2MFА ( 36Х2Н2МФА ) ( 36ХН1МФА ) |
| Substitute: | 37ХН3МФА |
| Classification : | Alloy structurall steel |
| Equivalent grades: | Go here |
Chemical composition in % for grade 36KH2N2MFА ( 36Х2Н2МФА )
| C | Si | Mn | Ni | S | P | Cr | Mo | V | Cu |
| 0.33 - 0.4 | 0.17 - 0.37 | 0.25 - 0.5 | 1.3 - 1.7 | max 0.025 | max 0.025 | 1.3 - 1.7 | 0.3 - 0.4 | 0.1 - 0.18 | max 0.3 |
Temperature of critical points for grade 36KH2N2MFА ( 36Х2Н2МФА ).
| Ac1 = 740 , Ac3(Acm) = 780 , Ar3(Arcm) = 400 , Ar1 = 300 |
Mechanical properties under Т=20oС for grade 36KH2N2MFА ( 36Х2Н2МФА )
| Assortment | Dimension | Direct. | sв | sT | d5 | y | KCU | Heat treatment |
| - | mm | - | MPa | MPa | % | % | kJ / m2 | - |
| Bar, GOST 4543-71 | Ø 25 | 1180 | 1080 | 12 | 50 | 780 | Guenching and drawing |
| Brinell hardness for 36KH2N2MFА ( 36Х2Н2МФА ) (annealing) , GOST 4543-71 | HB 10 -1 = 269 MPa |
Technological properties for grade 36KH2N2MFА ( 36Х2Н2МФА )
| Weldability: | hard weldability. |
| Flakes : | predisposed |
| Temper brittleness: | not predisposed |
Physical properties for grade 36KH2N2MFА ( 36Х2Н2МФА )
| 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 | 2.12 | 36 | 278 | |||
| 100 | 2.04 | 12.5 | 36 | 496 | 335 | |
| 200 | 1.98 | 12.8 | 35 | 508 | 432 | |
| 300 | 1.86 | 13.3 | 35 | 525 | 517 | |
| 400 | 1.73 | 13.5 | 34 | 538 | 613 | |
| 500 | 1.66 | 14 | 33 | 567 | 720 | |
| 600 | 1.56 | 14.3 | 31 | 601 | 825 | |
| 700 | 1.39 | 14.5 | 30 | 672 | 940 | |
| 800 | 1.27 | 11 | 29 | 697 | ||
| T | E 10- 5 | a 10 6 | l | r | C | R 10 9 |
Equivalent steels for grade 36KH2N2MFА ( 36Х2Н2МФА )
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| - | DIN,WNr | JIS | AFNOR | BS | EN | UNI | SS | PN | CSN | |||||||||||
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Types of delivery of grade 36KH2N2MFА ( 36Х2Н2МФА )
| B03 - Metal forming treatment. Forgings |
| В22 - Graded and shaped rolling |
| B23 - Sheets and Strips |
| В32 - Graded and shaped rolling |
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] |
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 |
36KH2N2MFА ( 36Х2Н2МФА ) - Alloy structurall steel: chemical composition, mechanical and physical properties, hardness
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