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

Australia AS H7A Cast steels and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: H7A / H7A
Category Grade Standard Region/Area Standard Content
Metals H7A AS/NZS 2074 Australia Cast steels

Chemical composition(mass fraction)(wt.%) of the H7A

Element Min Max Similar
Si - 1.0000 -
S - 0.0300 -
P - 0.0350 -
Ni 3.6000 4.6000 -
Nb 0.1500 0.3500 -
Mn - 0.7000 -
Cu 2.5000 3.2000 -
Cr 15.5000 17.7000 -
C - 0.0700 -

Mechanical Properties of steel grade H7A

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)
436 (≥) 643 (≥) 22 13 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 141

Physical Properties of steel grade H7A

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 - -     0.14 -  
427 215 - 44.3 212   -  
487 - 23 41.2   344 413

Heat Treatment of steel grade H7A

Heat treated : 1886°C - 1972°C

Technological Curves of steel grade H7A

Cross Reference Table (Equivalent Grade) of H7A

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 H7A?
  • List your company on S&G now? Join
  • Non-paying users only
Sidebar RFQs Menu My Account
Top