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K408

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GH783 K409
#K8

Description

China GBT K408 conventional cast superalloy and K408 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: K408
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy K408 GBT China conventional cast superalloy
GH698
GH708
GH710
GH738(GH684)
GH742
GH188
GH605
GH941
GH159
GH783

Chemical composition(mass fraction)(wt.%) of the K408

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％) B(%) Al(%) Ti(%) Fe(%)
0.10-0.20 0.60 0.60 0.015 0.020000000000000000 14.90-17.00 Bal 4.50-6.00 0.060-0.080 2.50-3.50 1.80-2.50 8.00-12.50

Mechanical Properties of steel grade K408

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)
722 (≥) 787 (≥) 34 24 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 233

Physical Properties of steel grade K408

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
32 - -     0.31 -  
652 415 - 42.3 443   -  
978 - 31 21.2   222 442

Heat Treatment of steel grade K408

Heat treated : 1346°C - 1984°C

Technological Curves of steel grade K408

Cross Reference Table (Equivalent Grade) of K408

Grade Standard Country Application
SK85 JIS Japan Carbon tool steel
SK80 JIS Japan Carbon tool steel
XK8660S AS Australia Australia Structural steel
K8660HS AS Australia Australia Structural steel
K408 GBT China conventional cast superalloy
K8 GBT China conventional cast superalloy
K80 GBT China conventional cast superalloy
K825 GBT China conventional cast superalloy
GH783 K409
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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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