Naval Sea Systems Command (NAVSEA) S9074-AR-GIB-010/278, Aug 1995, Requirements for Fabrication Welding and Inspection, and Casting Inspection and Repair for Machinery, Piping, and Pressure Vessels
formerly Mil Std 278 IS almost exclusively used as a reference for Military and Government welding. It is very common to see government contracts state "All welding will accomplished IAW" this reference


with that in mind I have included this direct quote

6.2.4 Prohibited electrodes. Unless specifically approved. Types Mil 6010. 6012 or 6013 electrodes of AWS A5.1 shall not be used for M.P and A applications

By the way
M = Machinery
P = Pipe
A = Pressure vessels

I have never used any of these electrodes. All the shops I have worked in BAN ALL E-60xx electrodes. Many of you have mentioned doing qualifications of 6010 roots covered by 7018 , and a few of you have even mentioned a particular Approval of 6010 WHY