ASTM A-514 can be welded with an E11018 electrode for anything under 2 1/2" thick. Over 2 1/2" use an E10018. As far as SAE number, I'm not sure but I have heard it called the trade name T1. It is often used in crane booms, truck frames and rail car frames. Low Hydrogen is a must when welding A-514. Use wet electrodes, and it WILL CRACK. Make sure they are baked properly. I don't have a D1.1 with me, but I beleive A-514 is listed in table 4.9. Table 4.9 should be the documentation you need.
Years ago in the USA, they (I don't know for sure who) published a list called Unified Numbering System, abbreviated UNS, in which the steels under different standards, but having the same chemical and mechanical properties (or at least approximately the same), were grouped into the same UNS number.
That list is available on most engineering handbooks, including Perry's Chemical Engineer Handbook.
Giovanni S. Crisi
Sao Paulo - Brazil