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  • A515 Grade 70
  • A515 Grade 70
  • A515 Grade 70

A515 Grade 70

  • Thickness: 6mm-400mm
  • Width: 1500mm-4200mm
  • Length: 3000mm-18000mm
  • Heat Treatment: As Rolled/Normalised
  • Rolling Type: Boiler steel plate,Pressure vessel steel plate
  • Steel Standard: ASTM A515/A515M
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■ Overview
ASTM A515 Grade 70 are carbon silicon steel plate for building boilers and pressure vessels in intermediate and higher temperature services.There are three steel grades A515 Grade 60 boiler steel plate,A515 Grade 65 boiler steel plate and A515 Grade 70 boiler steel plate owning to different yield strength and tensile strength.Pressure vessel steel plate A515Gr70 owned tensile strength within 485-620 Mpa,and the minimum yield strength shall be above 260 Mpa.The steel grade A515 Grade 70 contains a higher carbon contains comparing with A515 Grade 60 and A515 Grade 65.
■ 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 A515 Grade 70 boiler steel

Yield strength (Mpa) Tensile strength (Mpa) Elongation in ≥,%
260 485-620 200mm 50mm
17 21

Chemical composition for A515 Grade 70 boiler steel (Product Analysis Max%)

Main chemical elements composition of A515 Grade 60
Thickness(mm) C Si Mn P S
T≤25 0.24 0.13-0.45 0.98 0.025 0.025
25<T≤50 0.27
50<T≤100 0.29
T>100 0.31

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