Tấm A299

Tấm A299


A299 Grade B,A299GrB

  • Steel Standard:ASTM A299/A299M
  • Rolling Type:Boiler steel plate,Pressure vessel steel plate
  • Thickness:6mm-300mm
  • Width:1500mm-4200mm
  • Length:3000mm-18000mm
  • Heat Treatment:AR/Stress Relieving/Normalized
    ■ Overview
    ASTM A299 Grade B boiler steel plate with minimum yield strength above 325 Mpa,and tensile strength within 550-690 Mpa.Comparing with pressure vessel steel plate A299 Grade A,yield strength above 290 Mpa and tensile strength within 515-655 Mpa,pressure vessel steel plate SA299 Grade B owned a higher values.Additional technical requirements for boiler steel plates SA299 Grade B such as simulated post-weld heat treatment,low temperature impcting test,drop weight test and high temperature tension test.Ultrasonice test have to be done for SA299 Grade B boiler steel plate when rolling in our steel mill.
    ■ Full Data
     Technical Requirements & Additional Services:
    ♦  High tension test
    ♦  Low temperature impacting test
    ♦  Normalised for thick plates over 40mm
    ♦  Simulated post-welded heat treatment (PWHT)
    ♦  Rolling under standard NACE MR-0175 (HIC+SSCC)
    ♦  Issued Orginal Mill test certificate under EN 10204 FORMAT 3.1/3.2
    ♦  Shot blasting and Painting,Cutting and welding as per end user’s demands
    ■ Techicals

     ►Mechnical property for A299 Grade B boiler steel:


    Thickness (mm) Yield strength (≥Mpa) Tensile strength (Mpa) Elongation in ≥,%
    T≤25 325 550-690 200mm 50mm
    25<T 310 16 19

     ►Chemical composition for A299 Grade B boiler steel (Product Analysis Max%)


    Main chemical elements composition of A299 Grade B
    Thickness(mm) C Si Mn P S
    T≤25 0.28 0.13-0.45 0.84-1.52 0.035 0.035
    25<T 0.30 0.84-1.62
    ► Inquiry 
    Email: thanhthuong@viscovietnam.vn
    Phone: 0904 342 689


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