A 541 Class 8A chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of A 541 Class 8A

SAE A 541 Class 8A

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This page is mainly introduced the A 541 Class 8A chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of A 541 Class 8A,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Quenched and Tempered Carbon and Alloy Steel Forgings for Pressure Vessel Components

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C   0.20
Si   0.50
Mn   1.00
P  
S  
Ni  
Cr   12.50
Al  
Cu  
Ti  
Fe   remaining
N  
Mo  
W   3.00

Mechanical Properties

Tensile strength 730~146 σb/MPa
Yield Strength 857 σ 0.2 ≥/MPa
Elongation 92 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 753~970 -
HRC 30 -

Physical Properties

Thermal expansion 50-73 e-6/K
Thermal conductivity 14-98 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 0303-7913 째C
Density 4218-1550 kg/m3
Resistivity 0.50-0.60 Ohm.mm2/m
     

Heat Treatment Regime

Annealing

Quenching

Tempering

Normalizing

Q & T

Size Availability

Steel Grade Specification Processing range(mm)
A 541 Class 8A Stainless Steels Round Bar and Hollow Bar Φ1 to Φ2000
Square and Flat Steel Φ10 to Φ100
Plate and Sheet 0.08-800(Thickness)*10-1500(Width)*Length
Tube or Pipe OD:Φ4-410; WT:1-35 mm; Lenght:10-12000
Coil and Strip Steel THK:0.1mm Width:1500mm
Forged Ring/Cylindrical/Disk

Technical specification/standard for download