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A 541 Class 8A

Description

USA SAE A 541/A 541M (2010), A 541 Class 8A Specialsteel Quenched and Tempered Carbon and Alloy Steel Forgings for Pressure Vessel Components and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: A 541 Class 8A
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel A 541 Class 8A Precipitation-Hardening SAE USA Quenched and Tempered Carbon and Alloy Steel Forgings for Pressure Vessel Components

Chemical composition(mass fraction)(wt.%) of the A 541 Class 8A

C Si Mn P S Ni Cr Al Cu Ti Fe N Mo W
≤0.20 ≤0.50 ≤1.00 ≤ ≥ ≤ ≥ ≤ ≥ ≤12.50 ≤ ≥ ≤ ≥ ≤ ≥ ≤remaining ≤ ≥ ≤ ≥ ≤3.00

Mechanical Properties of steel grade A 541 Class 8A

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)
118 (≥) 387 (≥) 41 21 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 114

Physical Properties of steel grade A 541 Class 8A

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
24 - -     0.13 -  
483 864 - 23.3 233   -  
748 - 41 41.2   221 244

Heat Treatment of steel grade A 541 Class 8A

Heat treated : 1988°C - 1689°C

Technological Curves of steel grade A 541 Class 8A

Cross Reference Table (Equivalent Grade) of A 541 Class 8A

Relevant standard of A 541 Class 8A

A 541/A 541M (2010) Quenched and Tempered Carbon and Alloy Steel Forgings for Pressure Vessel Components A-541-A-541M-(2010).pdf

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