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K708

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K648 K605
#K708

Description

China GBT K708 conventional cast superalloy and K708 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: K708
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy K708 GBT China conventional cast superalloy
K4708
K002
K130
K163
K4169
K202
K242
K536
K537
K648

Chemical composition(mass fraction)(wt.%) of the K708

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％) W(%) B(%) Al(%) Ti(%) Fe(%)
0.05-0.10 ≤0.60 ≤0.50 0.015 0.015000000000000000 17. 50-20.50 Bal 4.00-6. 00 5.50-7. 50 ≤0.008 1.90-2. 30 1.00-1.40 ≤4.00

Mechanical Properties of steel grade K708

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)
539 (≥) 934 (≥) 13 13 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 211

Physical Properties of steel grade K708

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 - -     0.22 -  
368 499 - 43.3 113   -  
771 - 13 34.2   414 341

Heat Treatment of steel grade K708

Heat treated : 1999°C - 1777°C

Technological Curves of steel grade K708

Cross Reference Table (Equivalent Grade) of K708

Grade Standard Country Application
K708 GBT China conventional cast superalloy
K648 K605
Available Suppliers
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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