Available 24/7 at sales@steel-grades.com

Description

12X21H5T Austenitic - Martensitic steel and 12X21H5T Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Heat-Resistant Steel: 12X21H5T
Category Type Steel Grade Standard Country Application
Steel GradesHeat-Resistant Steel 12X21H5T Austenitic - Martensitic steel
15X25T
15X28
20X13H4Γ9
09X15H8Ю
07X16H6
09X17H7Ю
08X17H5M3
08X20H14C2
20X20H14C2
08X22H6T

Chemical composition(mass fraction)(wt.%) of the 12X21H5T

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Mo(%) W(%) Al(%) Ti(%)
0.09-0.14 Max 0.80 Max 0.80 Max 0.035 Max 0.025 20.0-22.0 4.80-5.80 Max 0.30 Max 0.20 Max 0.08 0.25-0.50

Mechanical Properties of steel grade 12X21H5T

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)
726 (≥) 817 (≥) 11 33 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 224

Physical Properties of steel grade 12X21H5T

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
14 - -     0.23 -  
567 383 - 44.3 324   -  
631 - 11 42.2   144 243

Heat Treatment of steel grade 12X21H5T

Heat treated : 1139°C - 1879°C

Technological Curves of steel grade 12X21H5T

Cross Reference Table (Equivalent Grade) of 12X21H5T

Grade Standard Country Application
12X21H5T Austenitic - Martensitic steel

Available Suppliers

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 12X21H5T?
  • List your company on S&G now? Join
  • Non-paying users only
Top