Database of Steel and Alloy (Marochnik)

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Metals -> Tool steel -> Alloy tool steel

Characteristics of the material 9KHS   ( 9HS,   9 ).

Material : 9KHS   ( 9HS,   9 )
Substitute: ,
Classification : Alloy tool steel


Chemical composition in % of the material 9KHS   ( 9HS,   9 ) .
C Si Mn Ni S P Cr Mo W V Ti Cu
0.85 - 0.951.2 - 1.60.3 - 0.6max   0.35max   0.03max   0.030.95 - 1.25max   0.2max   0.2max   0.15max   0.03max   0.3


Temperature of critical points of the grade 9KHS   ( 9HS,   9 ).
Ac1 = 770 ,      Ac3(Acm) = 870 ,       Ar1 = 730 ,       Mn = 160


Mechanical properties under =20o of the material 9KHS   ( 9HS,   9 ) .
Assortment Dimension Direct. s sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
      790 445 26 54390As-delivered state


    Brinell hardness of the material   9KHS   ( 9HS,   9 )   (annealing) ,       HB 10 -1= 241   MPa


Physical properties of the material 9KHS   ( 9HS,   9 ) .
T E 10- 5 a 10 6 l r C R 10 9
Grade MPa 1/Grade Watt/(mGrade) kg/m3 J/(kgGrade) Ohmm
20 1.9     7830   400


Technological properties of the material 9KHS   ( 9HS,   9 ) .
  Weldability: is not used.
 Flakes : not predisposed
Temper brittleness: predisposed



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/(mGrade)]
r - Density , [kg/m3]
C - Specific heat ( range 20o - T ), [J/(kgGrade)]
R - Electrical resistance , [Ohmm]

Weldability :
without limitations - welding is done without heating and subsequent heat treeting
limited weldability - welding is possible under heating up to 100-120 grade and subsequent heat treeting
hard weldability - obtaining the quality welding needs the additional operations:heating up to 200-300 grade; the heat treeting ia annealing

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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