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

China HB 18A 航空结构钢热处理工艺 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 18A / 18A
Category Grade Standard Region/Area Standard Content
Metals 18A HB/Z 136 China 航空结构钢热处理工艺

Chemical composition(mass fraction)(wt.%) of the 18A

Element Min Max Similar

Mechanical Properties of steel grade 18A

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)
499 (≥) 442 (≥) 12 33 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 342

Physical Properties of steel grade 18A

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
34 - -     0.13 -  
983 478 - 44.3 313   -  
876 - 23 43.2   412 232

Heat Treatment of steel grade 18A

Heat treated : 1493°C - 1134°C

Technological Curves of steel grade 18A

Cross Reference Table (Equivalent Grade) of 18A

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 18A?
  • List your company on S&G now? Join
  • Non-paying users only
Sidebar RFQs Menu My Account
Top