Chinese
Available 24/7 at sales@steel-grades.com
SGSG
Post Your Request Now
Toggle menu

K438

Favorite Datasheet
K430 K438G
#K438

Description

China GBT K438 conventional cast superalloy and K438 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: K438
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy K438 GBT China conventional cast superalloy
K17G
K17L
K18
K18B
K19
K19H
K423
K423A
K424
K430

Chemical composition(mass fraction)(wt.%) of the K438

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％) W(%) Co(%) B(%) Nb(%) Al(%) Ti(%) Ta(%) Fe(%)
0.10-0.20 0.30 0.20 0.015 0.015000000000000000 15‘70-16-30 Bal 1.50-2.00 2.40-2.80 8.00-9.00 0.005-0.015 0.60-1.10 3.20-3.70 3.00-3.50 1.50-2.00 0.50

Mechanical Properties of steel grade K438

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)
824 (≥) 567 (≥) 32 32 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 143

Physical Properties of steel grade K438

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 - -     0.32 -  
768 152 - 13.3 211   -  
337 - 43 22.2   121 434

Heat Treatment of steel grade K438

Heat treated : 1851°C - 1251°C

Technological Curves of steel grade K438

Cross Reference Table (Equivalent Grade) of K438

Grade Standard Country Application
K438 GBT China Age hardening type Nickel base alloy
K438 GBT China conventional cast superalloy
K438G GBT China conventional cast superalloy
K430 K438G
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...

Rfq.: sales@longhaisteel.com
  • Do you supply this K438?
  • List your company on S&G now? Join
  • Non-paying users only
Top