Database of Steel and Alloy (Marochnik)

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Metals -> Tool steel -> Die tool steel

Characteristics of the material 3KH2V8F   ( 3H2V8F,   3Õ2Â8Ô ).

Material : 3KH2V8F   ( 3H2V8F,   3Õ2Â8Ô )
Substitute: 4Õ5Â2ÔÑ, 4Õ2Â2ÌÔÑ, 5Õ3Â3ÌÔÑ
Classification : Die tool steel


Chemical composition in % of the material 3KH2V8F   ( 3H2V8F,   3Õ2Â8Ô ) .
C Si Mn Ni S P Cr Mo W V Cu
0.3 - 0.40.15 - 0.40.15 - 0.4max   0.35max   0.03max   0.032.2 - 2.7max   0.57.5 - 8.50.2 - 0.5max   0.03


Temperature of critical points of the grade 3KH2V8F   ( 3H2V8F,   3Õ2Â8Ô ).
Ac1 = 800 ,      Ac3(Acm) = 850 ,       Ar3(Arcm) = 750 ,       Ar1 = 690 ,       Mn = 380


Mechanical properties under Ò=20oÑ of the material 3KH2V8F   ( 3H2V8F,   3Õ2Â8Ô ) .
Assortment Dimension Direct. sâ sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Steel     1530 1390 12 36200Guenching 1130oC, oil, Drawing 650oC, 2h,


    Brinell hardness of the material   3KH2V8F   ( 3H2V8F,   3Õ2Â8Ô )   (annealing) ,       HB 10 -1= 241   MPa


Physical properties of the material 3KH2V8F   ( 3H2V8F,   3Õ2Â8Ô ) .
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 2.24          
100 2.18   25     250
200 2.11   27     200
300 2.04   29     170
400 1.96   40     140
500 1.87   46     120
600 1.77   50      
T E 10- 5 a 10 6 l r C R 10 9


Technological properties of the material 3KH2V8F   ( 3H2V8F,   3Õ2Â8Ô ) .
  Weldability: is not used.
 Flakes : predisposed
Temper brittleness: predisposed



Specification :
Mechanical properties :
sâ - 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]

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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