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K25

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K188 DZ404
#K25

Description

China GBT K25 conventional cast superalloy and K25 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: K25
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy K25 GBT China conventional cast superalloy
K640
K640M
K6188
K825
K605
K10
K612
K40
K40M
K188

Chemical composition(mass fraction)(wt.%) of the K25

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) V(%) W(%) Ti(%)
0.02-0.08 ≤0.50 ≤0.50 0.015 0.010 Bal 39.50-42.50 0.200-0.400 1.40-1.80 0.20-0.40

Mechanical Properties of steel grade K25

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)
471 (≥) 874 (≥) 24 43 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 211

Physical Properties of steel grade K25

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
21 - -     0.14 -  
532 533 - 34.3 331   -  
966 - 24 44.2   423 232

Heat Treatment of steel grade K25

Heat treated : 1171°C - 1395°C

Technological Curves of steel grade K25

Cross Reference Table (Equivalent Grade) of K25

Grade Standard Country Application
K25 GBT China conventional cast superalloy
K188 DZ404
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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