Steel grades A515 GR.65 and A515 GR.60 are both in steel specification ASTM A515/A515M (This standard specification for pressure vessel plates, carbon steel,for Intermediate and Higher temperature service)

In mechanical property,steel plate grade A515 GR.65 owned a higher tensile strength within 450-585Mpa and yield strength above 240Mpa.However,steel grade A515 GR.60 owned a lower tensile strength than A515 Gr.65 within 415-550Mpa and minimum yield strength at 220Mpa.

In chemical composition,A515 gr.65 steel has a more range in Carbon contains than A515 gr.60 steel.So A515 gr.65 owned a higher strength in steel property.

General additional requirements for steel grades A515Gr70 and A515Gr60 and A515Gr65 shall be conform to ASTM specification A20/A20M.

                                                                                                                                XINSTEEL   TECHNICALS