| Grade : | R6M5K5 ( Р6М5К5 ) |
| Classification : | High speed tool steel |
| Equivalent grades: | Go here |
Chemical composition in % for grade R6M5K5 ( Р6М5К5 )
| C | Si | Mn | Ni | S | P | Cr | Mo | W | V | Co | Cu |
| 0.86 - 0.94 | 0.2 - 0.5 | 0.2 - 0.5 | max 0.6 | max 0.03 | max 0.03 | 3.8 - 4.3 | 4.8 - 5.3 | 5.7 - 6.7 | 1.7 - 2.1 | 4.7 - 5.2 | max 0.25 |
Temperature of critical points for grade R6M5K5 ( Р6М5К5 ).
| Ac1 = 840 , Ac3(Acm) = 875 , Ar3(Arcm) = 805 , Ar1 = 765 |
Mechanical properties under Т=20oС for grade R6M5K5 ( Р6М5К5 )
| Assortment | Dimension | Direct. | sв | sT | d5 | y | KCU | Heat treatment |
| - | mm | - | MPa | MPa | % | % | kJ / m2 | - |
| 850 | 510 | 12 | 14 | 180 | As-delivered state |
| Brinell hardness for R6M5K5 ( Р6М5К5 ) (annealing) , GOST 19265-73 | HB 10 -1 = 269 MPa |
Physical properties for grade R6M5K5 ( Р6М5К5 )
| 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 | 2.2 | 8200 | 458 | |||
| 100 | 27 | |||||
| 200 | 28 | |||||
| 300 | 29 | |||||
| 400 | 30 | |||||
| 500 | 32 | |||||
| 600 | 36 | |||||
| 700 | 34 | |||||
| 800 | ||||||
| 900 | 29 | |||||
| T | E 10- 5 | a 10 6 | l | r | C | R 10 9 |
Equivalent steels for grade R6M5K5 ( Р6М5К5 )
| USA | Germany | Japan | France | England | European | Italy | Spain | China | Sweden | Bulgaria | Hungary | Poland | Czechia | Austria | South Korea | |||||||||||||||||||||||||||||||||
| - | DIN,WNr | JIS | AFNOR | BS | EN | UNI | UNE | GB | SS | BDS | MSZ | PN | CSN | ONORM | KS | |||||||||||||||||||||||||||||||||
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Types of delivery of grade R6M5K5 ( Р6М5К5 )
| В22 - Graded and shaped rolling |
| 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] |
R6M5K5 ( Р6М5К5 ) - High speed tool 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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