Metals -> Structural steel -> Alloy structurall steel Characteristics of the material 40KH ( 40H, 40Х ).
Material : 40KH ( 40H, 40Х ) Substitute: 45Х, 38ХА, 40ХН, 40ХС, 40ХФ, 40ХР Classification : Alloy structurall steel
Chemical composition in % of the material 40KH ( 40H, 40Х ) . C Si Mn Ni S P Cr Cu 0.36 - 0.44 0.17 - 0.37 0.5 - 0.8 max 0.3 max 0.035 max 0.035 0.8 - 1.1 max 0.3
Temperature of critical points of the grade 40KH ( 40H, 40Х ).
Ac1 = 743 , Ac3 (Acm ) = 782 , Ar3 (Arcm ) = 730 , Ar1 = 693
Mechanical properties under Т=20o С of the material 40KH ( 40H, 40Х ) .
Assortment
Dimension
Direct.
s в
s T
d 5
y
KCU
Heat treatment - mm - MPa MPa % % kJ / m2 - Disk tangent 570 320 17 35 400 Bar Ж 28 - 55 longitudinal 940 800 13 55 850 Bar Ж 25 980 785 10 45 590 Guenching 860o C, oil, Drawing 500o C, water,
Brinell hardness of the material 40KH ( 40H, 40Х ) (annealing) , HB 10 -1 = 217 MPa
Physical properties of the material 40KH ( 40H, 40Х ) . 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 2.14 7820 210 100 2.11 11.9 46 7800 466 285 200 2.06 12.5 42.7 7770 508 346 300 2.03 13.2 42.3 7740 529 425 400 1.85 13.8 38.5 7700 563 528 500 1.76 14.1 35.6 7670 592 642 600 1.64 14.4 31.9 7630 622 780 700 1.43 14.6 28.8 7590 634 936 800 1.32 26 7610 664 1100 900 26.7 7560 1140 1000 28 7510 1170 1100 28.8 7470 120 1200 7430 1230 T E 10- 5 a 10 6 l r C R 10 9
Technological properties of the material 40KH ( 40H, 40Х ) . Weldability: hard weldability. Flakes : predisposed Temper brittleness: predisposed
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]
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). Helpfull for specialists in material technology, structural engineer, mechanical engineer, metallurgy and metal traderTop
© 2003 - 2009 All rights reserved. About program.
The entire risk as to use of the Database of Steel and Alloy (Marochnik) content is assumed by you the user
Информация взята с сайта Марочник стали и сплавов
© 2002 - 2009 Мосспецсталь. Все права защищены