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Description

China GBT K4648 conventional cast superalloy and K4648 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: K4648
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy K4648 GBT China conventional cast superalloy
K80
K91
K4002
K4130
K4163
K4169
K4202
K4242
K4536
K4537h

Chemical composition(mass fraction)(wt.%) of the K4648

C(%) Si(%) S(%) Cr(%) Ni(%) Mo(%) W(%) B(%) Nb(%) Al(%) Ti(%) Fe(%)
0.03-0.10 ≤0.30 0.010000000000000000 32. 00-35.00 Bal 2. 30-3. 50 4.30-5. 50 ≤0. 008 0. 70-1.30 0.70-1.30 0.70-1.30 ≤0.50

Mechanical Properties of steel grade K4648

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)
639 (≥) 697 (≥) 14 14 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 313

Physical Properties of steel grade K4648

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 - -     0.31 -  
754 555 - 21.3 431   -  
658 - 42 22.2   244 213

Heat Treatment of steel grade K4648

Heat treated : 1891°C - 1472°C

Technological Curves of steel grade K4648

Cross Reference Table (Equivalent Grade) of K4648

Grade Standard Country Application
K4648 GBT China conventional cast superalloy

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