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Precedent 71A

Global 企业标准 Precedent71A and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Precedent71A / Precedent 71A
Category Grade Standard Region/Area Standard Content
Metals Precedent 71A -- Global

Chemical composition(mass fraction)(wt.%) of the Precedent 71A

Element Min Max Similar

Mechanical Properties of steel grade Precedent 71A

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)
224 (≥) 577 (≥) 11 23 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 344

Physical Properties of steel grade Precedent 71A

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
21 - -     0.23 -  
172 382 - 34.3 233   -  
324 - 21 22.2   134 241

Heat Treatment of steel grade Precedent 71A

Heat treated : 1696°C - 1292°C

Technological Curves of steel grade Precedent 71A

Cross Reference Table (Equivalent Grade) of Precedent 71A

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