The EST960 or EST890 is similar to an HY130. I don't know all the Q & T ASTM classes; however, it doesn't appear that the chemistry you mentioned meets the chemistry req'ts of the more common A514 or A517 QT material. EST 890 & EST 960 steels are available in North America through SSAB Hardox. It goes under the commercial name of Weldox 960 or 890 (www.weldox.com).