| Grade : | 2KH6V8M2K8 ( 2Х6В8М2К8 ) |
| Classification : | Die tool steel |
| Equivalent grades: | Is absent |
Chemical composition in % for grade 2KH6V8M2K8 ( 2Х6В8М2К8 )
| C | Si | Mn | S | P | Cr | Mo | W | V | Co |
| 0.22 - 0.3 | 0.3 - 0.6 | 0.15 - 0.4 | max 0.03 | max 0.03 | 6.5 - 7 | 1.8 - 2.3 | 7 - 8 | 0.1 - 0.25 | 7.5 - 8.5 |
Temperature of critical points for grade 2KH6V8M2K8 ( 2Х6В8М2К8 ).
| Ac1 = 827 , Ac3(Acm) = 890 , Mn = 180 |
Mechanical properties under Т=20oС for grade 2KH6V8M2K8 ( 2Х6В8М2К8 )
| Assortment | Dimension | Direct. | sв | sT | d5 | y | KCU | Heat treatment |
| - | mm | - | MPa | MPa | % | % | kJ / m2 | - |
| Bars | 15 | 1750 | 1450 | 2 | 6 | Guenching 1180oC, oil, Drawing |
| Brinell hardness for 2KH6V8M2K8 ( 2Х6В8М2К8 ) (high tempering) , | HB 10 -1 = 250 MPa |
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] |
2KH6V8M2K8 ( 2Х6В8М2К8 ) - Die tool steel: chemical composition, mechanical and physical properties, hardness
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