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HK40

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HK30 HT30
#HK40

Description

USA ASTM HK40 Steel Castings, Iron-Chromium and Iron-Chromium-Nickel,Heat Resistant, for General Application and HK40 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: HK40
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy HK40 ASTM USA Steel Castings, Iron-Chromium and Iron-Chromium-Nickel,Heat Resistant, for General Application
CG8M
CK3MCuN
CK20
CH8
CH10
CH20
CN3MN
CN7M
CT15C
HK30

Chemical composition(mass fraction)(wt.%) of the HK40

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％)
0.35-0.45 1.75 1.5 0.04 0.04 23.0-27.0 19.0-22.0 ≤0.50

Mechanical Properties of steel grade HK40

Yield
Rp0.2 (MPa)		 Tensile
Rm (MPa)		 Impact
KV/Ku (J)		 Elongation
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition Brinell hardness (HBW)
736 (≥) 978 (≥) 43 44 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 342

Physical Properties of steel grade HK40

Temperature
(°C)		 Modulus of elasticity
(GPa)		 Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)		 Specific thermal capacity
(J/kg·°C)		 Specific electrical resistivity
(Ω mm²/m)		 Density
(kg/dm³)		 Poisson’s coefficient, ν
13 - -     0.11 -  
915 674 - 34.3 112   -  
159 - 41 31.2   431 433

Heat Treatment of steel grade HK40

Heat treated : 1351°C - 1398°C

Technological Curves of steel grade HK40

Cross Reference Table (Equivalent Grade) of HK40

Grade Standard Country Application
ASTM HK40 AISI USA
HK40 ASTM USA Steel Castings, Iron-Chromium and Iron-Chromium-Nickel,Heat Resistant, for General Application
HK40 ASTM USA Steel Castings, Iron-Chromium and Iron-Chromium-Nickel,Heat Resistant, for General Application
HK30 HT30
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Jiangyou Longhai Special Steel Co.,Ltd.
Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

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