A9

This page provides A9 datasheet, A9 mechanical properties, chemical element A9, technical specifications of A9 steel material properties. A9 performance specifications.

ASTM A9
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel And Hard Alloy A9 ASTM USA Alloy tool steel
A4
T30104
A5
T30105
A6
T30106
A7
T30107
A8
T30108
Datasheet for:Steel Grades:Tool Steel And Hard Alloy:A9

Chemical composition(mass fraction)(wt.%) of the A9

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Mo(%) V(%)
0.45~0.55 0.95~1.15 0.20~0.50 ≤0.030 ≤0.030 4.75~5.50 1.25~1.75 1.30~1.80 0.80~1.40

Mechanical properties / Mechanische Eigenschaften / Caracteristiques mecaniques of grade A9

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)
599 (≥) 335 (≥) 21 34 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 313
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
41 - -     0.13 -  
624 715 - 33.3 413   -  
968 - 22 23.2   232 423
Heat treated : 1694°C - 1246°C
Directory is being updated.
The material does not have direct Metallography properties.
Directory is being updated.
The material does not have direct Metallography properties.
Directory is being updated.
Cross Reference Table(Equivalent Grade)
Grade Standard Country Application
A9 ASTM USA
Alloy tool steel
A9

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