Metals -> Tool steel -> Die tool steel Characteristics of the material 3KH3M3F ( 3H3M3F, 3Õ3Ì3Ô ).
Material : 3KH3M3F ( 3H3M3F, 3Õ3Ì3Ô ) Classification : Die tool steel
Chemical composition in % of the material 3KH3M3F ( 3H3M3F, 3Õ3Ì3Ô ) . C Si Mn Ni S P Cr Mo V Cu 0.27 - 0.34 0.1 - 0.4 0.2 - 0.5 max 0.35 max 0.03 max 0.03 2.8 - 3.5 2.5 - 3 0.4 - 0.6 max 0.3
Temperature of critical points of the grade 3KH3M3F ( 3H3M3F, 3Õ3Ì3Ô ).
Ac1 = 815 , Ac3 (Acm ) = 875 , Ar3 (Arcm ) = 820 , Ar1 = 760 , Mn = 340
Mechanical properties under Ò=20o Ñ of the material 3KH3M3F ( 3H3M3F, 3Õ3Ì3Ô ) .
Assortment
Dimension
Direct.
s â
s T
d 5
y
KCU
Heat treatment - mm - MPa MPa % % kJ / m2 - Steel 1670 1470 50 220 Guenching 1040o C, oil, Drawing 600o C, 2h,
Brinell hardness of the material 3KH3M3F ( 3H3M3F, 3Õ3Ì3Ô ) (annealing) , HB 10 -1 = 229 - 241 MPa
Physical properties of the material 3KH3M3F ( 3H3M3F, 3Õ3Ì3Ô ) . 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 2.07 32 7828 314 100 34 7808 365 200 36 7783 430 300 1.77 36 7754 515 400 36 7721 600 500 36 7684 710 600 34 7642 835 700 34 7597 965 800 33 7565 1118 900 34 7525 1151 T E 10- 5 a 10 6 l r C R 10 9
Specification :
Mechanical properties :
s â - Tensile strength , [MPa]
s T - Yield stress, [MPa]
d 5 - 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]
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