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Description

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

Datasheet for: Steel Grades:Special Alloy: HK
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy HK ASTM USA Steel Castings, Iron-Chromium and Iron-Chromium-Nickel,Heat Resistant, for General Application
J91139
J91149
J91309
J91459
J91249
J91339
J91340
HF
HH
HI

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

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％)
0.20-0.60 2 2 0.04 0.04 24.0-28.0 18.0-22.0 0.5

Mechanical Properties of steel grade HK

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)
995 (≥) 448 (≥) 41 32 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 233

Physical Properties of steel grade HK

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
23 - -     0.14 -  
391 346 - 11.3 233   -  
494 - 22 43.2   434 444

Heat Treatment of steel grade HK

Heat treated : 1627°C - 1126°C

Technological Curves of steel grade HK

Cross Reference Table (Equivalent Grade) of HK

Grade Standard Country Application
ASTM HK AISI USA
ASTM HK30 AISI USA
ASTM HK40 AISI USA
HK1073 AS Australia Australia Structural steel
HK1042 AS Australia Australia Structural steel
EN 46CHKD EN Euronorm Euronorm Structural steel
HK ASTM USA Steel Castings, Iron-Chromium and Iron-Chromium-Nickel,Heat Resistant, for General Application
HK30 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
HK ASTM USA Steel Castings, Iron-Chromium and Iron-Chromium-Nickel,Heat Resistant, for General Application
HK30 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
HI HE
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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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