| Grade : | R14F4 ( Р14Ф4 ) |
| Classification : | High speed tool steel |
| Equivalent grades: | Is absent |
Chemical composition in % for grade R14F4 ( Р14Ф4 )
| C | Si | Mn | Ni | S | P | Cr | Mo | W | V |
| 1.2 - 1.3 | max 0.5 | max 0.4 | max 0.4 | max 0.03 | max 0.03 | 4 - 4.6 | max 1 | 13 - 14.5 | 3.4 - 4.1 |
Temperature of critical points for grade R14F4 ( Р14Ф4 ).
| Ac1 = 825 , Ac3(Acm) = 885 |
| Brinell hardness for R14F4 ( Р14Ф4 ) (annealing) , | HB 10 -1 = 269 MPa |
Physical properties for grade R14F4 ( Р14Ф4 )
| 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 | 8400 |
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] |
R14F4 ( Р14Ф4 ) - High speed tool steel: chemical composition, mechanical and physical properties, hardness
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