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Metals -> Tool steel -> High speed tool steel

Characteristics of the material R6M5K5   ( R6M5K5,   󖹻5 ).

Material : R6M5K5   ( R6M5K5,   󖹻5 )
Classification : High speed tool steel


Chemical composition in % of the material R6M5K5   ( R6M5K5,   󖹻5 ) .
C Si Mn Ni S P Cr Mo W V Co
0.84 - 0.92max   0.5max   0.5max   0.4max   0.03max   0.033.8 - 4.34.8 - 5.35.7 - 6.71.7 - 2.14.7 - 5.2


Temperature of critical points of the grade R6M5K5   ( R6M5K5,   󖹻5 ).
Ac1 = 840 ,      Ac3(Acm) = 875 ,       Ar3(Arcm) = 805 ,       Ar1 = 765


Mechanical properties under =20o of the material R6M5K5   ( R6M5K5,   󖹻5 ) .
Assortment Dimension Direct. s sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
      850 510 12 14180As-delivered state


    Brinell hardness of the material   R6M5K5   ( R6M5K5,   󖹻5 )   (annealing) ,       HB 10 -1= 269   MPa


Physical properties of the material R6M5K5   ( R6M5K5,   󖹻5 ) .
T E 10- 5 a 10 6 l r C R 10 9
Grade MPa 1/Grade Watt/(m稧rade) kg/m3 J/(kg稧rade) Ohm穖
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



Specification :
Mechanical properties :
s - 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稧rade)]
r - Density , [kg/m3]
C - Specific heat ( range 20o - T ), [J/(kg稧rade)]
R - Electrical resistance , [Ohm穖]

Database of steels and alloys (Marochnik) contains information about chemical composition and properties of 1500 steels and alloys (stainless steel, alloy steel, carbone steel, structural steel, tool steel, cast iron, aluminum alloy, titanium alloy, copper alloy, nickel alloy, magnesium alloy and others).
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