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  • A455
  • A455

A455

  • Steel Standard: ASTM A455/A455M
  • Rolling Type: Boiler steel plate,Pressure vessel steel plate
  • Thickness: 6mm-300mm
  • Width: 1500mm-4200mm
  • Length: 3000mm-18000mm
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■ Overview
A455 and SA455 high strength carbon-manganese steel plate is mainly used for welded boiler and pressure vessel buildings.When rolling boiler steel plate A455,it usually made to a semi-killed or capped deoxidation,normally supplied in the as-rolled delivery condition.and also may be ordered under normalized or stress relieved or both.Besides the basic technical requirements for boiler steel plate SA455,the supplementary requirements such as simulated post welded heat treatment and bend test.
 
■ Full Data
Technical Requirements & Additional Services:
♦ High tension test
♦ Low temperature impacting test
♦ 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 A455 boiler steel:

Thickness(mm) Yield strength (≥Mpa) Tensile strength (Mpa) Elongation in ≥,%
T≤9.5 260 515-655 200mm 50mm
9.5<T≤15 255 505-640 15 22
15<T 240 485-620

Chemical composition for A455 boiler steel (Product Analysis Max%)

Main chemical elements composition of A455
C Si Mn P S
0.33 0.13 0.79-1.30 0.035 0.035
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