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K188

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K40M K25
#K188

Description

China GBT K188 conventional cast superalloy and K188 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: K188
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy K188 GBT China conventional cast superalloy
K612
K640
K640M
K6188
K825
K605
K10
K612
K40
K40M

Chemical composition(mass fraction)(wt.%) of the K188

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) W(%) Co(%) B(%) Fe(%)
0.15 0.20-0.50 ≤1.50 0.020 0.015 20.00-24.00 20.00-24.00 13.00-16.00 Bal ≤0.015 3.00

Mechanical Properties of steel grade K188

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)
173 (≥) 542 (≥) 44 31 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 341

Physical Properties of steel grade K188

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
12 - -     0.34 -  
951 889 - 32.3 341   -  
141 - 12 21.2   444 214

Heat Treatment of steel grade K188

Heat treated : 1414°C - 1438°C

Technological Curves of steel grade K188

Cross Reference Table (Equivalent Grade) of K188

Grade Standard Country Application
K188 GBT China conventional cast superalloy
K40M K25
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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