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America AISI AISIO-7 Tool Steels Alloy and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: AISIO-7 / AISI O-7
Category Grade Standard Region/Area Standard Content
Metals AISI O-7 ASTM A681 America Tool Steels Alloy

Chemical composition(mass fraction)(wt.%) of the AISI O-7

Element Min Max Similar

Mechanical Properties of steel grade AISI O-7

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)
814 (≥) 618 (≥) 44 32 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 132

Physical Properties of steel grade AISI O-7

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
32 - -     0.14 -  
818 563 - 43.3 111   -  
149 - 42 44.2   224 143

Heat Treatment of steel grade AISI O-7

Heat treated : 1771°C - 1942°C

Technological Curves of steel grade AISI O-7

Cross Reference Table (Equivalent Grade) of AISI O-7

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