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K409

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K408 K412
#K9

Description

China GBT K409 conventional cast superalloy and K409 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: K409
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy K409 GBT China conventional cast superalloy
GH708
GH710
GH738(GH684)
GH742
GH188
GH605
GH941
GH159
GH783
K408

Chemical composition(mass fraction)(wt.%) of the K409

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％) W(%) Co(%) B(%) Nb(%) Al(%) Ti(%) Ta(%) Fe(%)
0.08-0.13 0.25 0.20 0.015 0.015000000000000000 7.50-8.50 Bal 5.75-6.25 ≤0.10 9.50-10.50 0.010-0.020 ≤0.10 5.75-6.25 0.80-1.20 4.00-4.50 ≤0.35

Mechanical Properties of steel grade K409

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)
695 (≥) 418 (≥) 42 13 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 432

Physical Properties of steel grade K409

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
11 - -     0.24 -  
844 382 - 14.3 232   -  
575 - 41 43.2   421 231

Heat Treatment of steel grade K409

Heat treated : 1368°C - 1851°C

Technological Curves of steel grade K409

Cross Reference Table (Equivalent Grade) of K409

Grade Standard Country Application
SK95 JIS Japan Carbon tool steel
SK90 JIS Japan Carbon tool steel
XK9258S AS Australia Australia Structural steel
XK9261S AS Australia Australia Structural steel
K409 GBT China conventional cast superalloy
K9 GBT China conventional cast superalloy
K91 GBT China conventional cast superalloy
K408 K412
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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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