Under ASTM A516/A516M specification for pressure vessel plates,carbon steel,for moderate and low temperature service,according to steel strength,there are four different boiler steel grades,A516 Grade 70,A516 Grade 65,A516 Grade 60 and A516 Grade 55.Among these grades,the higher tensile strength steel grades A516Gr70 and A516Gr65 are mainly used for boiler building end users.

Mechnical property for A516 Grade 65 and A516 Grade 70 pressure vessel steel

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