| Grade : | 25Kh1M1F ( 25Х1М1Ф ) |
| Classification : | Relaxation-resistant steel |
| Equivalent grades: | Go here |
Chemical composition in % for grade 25Kh1M1F ( 25Х1М1Ф )
| C | Si | Mn | Ni | S | P | Cr | Mo | V | Cu |
| 0.22 - 0.29 | 0.17 - 0.37 | 0.4 - 0.7 | max 0.3 | max 0.025 | max 0.03 | 1.5 - 1.8 | 0.6 - 0.8 | 0.15 - 0.3 | max 0.2 |
Temperature of critical points for grade 25Kh1M1F ( 25Х1М1Ф ).
| Ac1 = 770 - 805 , Ac3(Acm) = 840 - 880 |
Mechanical properties under Т=20oС for grade 25Kh1M1F ( 25Х1М1Ф )
| Assortment | Dimension | Direct. | sв | sT | d5 | y | KCU | Heat treatment |
| - | mm | - | MPa | MPa | % | % | kJ / m2 | - |
| Forging | max thickness 300 | 650 | 450 | 16 | 50 | 600 | Normalizing and high drawing |
Physical properties for grade 25Kh1M1F ( 25Х1М1Ф )
| 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 | 2.16 | 7820 | 233 | |||
| 100 | 2.14 | 10.9 | 40.6 | 7800 | 283 | |
| 200 | 2.1 | 12 | 39.8 | 7770 | 349 | |
| 300 | 2.05 | 12.7 | 39 | 7740 | 428 | |
| 400 | 1.97 | 13.65 | 37.7 | 7700 | 519 | |
| 500 | 1.86 | 13.72 | 36 | 7670 | 633 | |
| 600 | 1.71 | 13.82 | 33.9 | 7640 | 746 | |
| 700 | 14 | 31 | 7600 | 862 | ||
| T | E 10- 5 | a 10 6 | l | r | C | R 10 9 |
Equivalent steels for grade 25Kh1M1F ( 25Х1М1Ф )
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Types of delivery of grade 25Kh1M1F ( 25Х1М1Ф )
| B03 - Metal forming treatment. Forgings |
| В22 - Graded and shaped rolling |
| B23 - Sheets and Strips |
| В32 - Graded and shaped rolling |
| B33 - Sheets and Strips |
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] |
25Kh1M1F ( 25Х1М1Ф ) - Relaxation-resistant steel: chemical composition, mechanical and physical properties, hardness
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