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K12

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K9 K17
#K12

Description

China GBT K12 conventional cast superalloy and K12 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: K12
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy K12 GBT China conventional cast superalloy
K412
K417
K417G
K417L
K418
K418B
K419
K419H
K8
K9

Chemical composition(mass fraction)(wt.%) of the K12

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％) V(%) W(%) B(%) Al(%) Ti(%) Fe(%)
0.11-0.16 0.60 0.60 0.015 0.008999999999999999 14.00-18.00 Bal 3.00-4.50 ≤0.300 4.50-6.50 0.005-0.010 1.60-2.20 1.60-2.30 ≤8.00

Mechanical Properties of steel grade K12

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)
265 (≥) 458 (≥) 33 34 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 134

Physical Properties of steel grade K12

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 - -     0.41 -  
475 559 - 13.3 423   -  
674 - 14 11.2   241 444

Heat Treatment of steel grade K12

Heat treated : 1327°C - 1129°C

Technological Curves of steel grade K12

Cross Reference Table (Equivalent Grade) of K12

Grade Standard Country Application
SK120 JIS Japan Carbon tool steel
K412 GBT China conventional cast superalloy
K12 GBT China conventional cast superalloy
K9 K17
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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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