Metals -> Tool steel -> Die tool steel Characteristics of the material 4KH5MF1S ( 4H5MF1S, 4Х5МФ1С ).
Material : 4KH5MF1S ( 4H5MF1S, 4Х5МФ1С ) Classification : Die tool steel
Chemical composition in % of the material 4KH5MF1S ( 4H5MF1S, 4Х5МФ1С ) . C Si Mn Ni S P Cr Mo V Cu 0.37 - 0.44 0.9 - 1.2 0.2 - 0.5 max 0.35 max 0.03 max 0.03 4.5 - 5.5 1.2 - 1.5 0.8 - 1.1 max 0.3
Temperature of critical points of the grade 4KH5MF1S ( 4H5MF1S, 4Х5МФ1С ).
Ac1 = 875 , Ac3 (Acm ) = 935 , Ar3 (Arcm ) = 815 , Ar1 = 760 , Mn = 305
Mechanical properties under Т=20o С of the material 4KH5MF1S ( 4H5MF1S, 4Х5МФ1С ) .
Assortment
Dimension
Direct.
s в
s T
d 5
y
KCU
Heat treatment - mm - MPa MPa % % kJ / m2 - 1670 1470 10 40 390 Guenching 1020o C, oil, Drawing 580o C, 2h,
Brinell hardness of the material 4KH5MF1S ( 4H5MF1S, 4Х5МФ1С ) (annealing) , HB 10 -1 = 241 MPa
Physical properties of the material 4KH5MF1S ( 4H5MF1S, 4Х5МФ1С ) . 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 22 7716 553 100 25 7692 591 200 27 7660 649 300 1.87 29 7627 715 400 30 7593 793 500 31 7559 879 600 1.6 31 7523 970 700 31 7490 1077 800 31 7459 1189 900 32 7438 1229 T E 10- 5 a 10 6 l r C R 10 9
Specification :
Mechanical properties :
s в - 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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