This specification covers welding materials which, when deposited on the base metals specified in 4.5, will meet the mechanical properties specified herein in the as-welded condition.

MIL-EL8 electrode is intended for making welds where maximum ductility or minimum alloy content in the weld is desired, and is especially usable for heavy fillets and other welds subject to large shrinkage stresses.

MIL-EL12 electrode results in higher strength than MIL-EL8 and is intended for welding carbon steel.

MIL-EM12 electrode results in higher strength than MIL-EL12 and is intended for high speed welding of carbon steel.

MIL-EM12K has better deoxidation properties than MIL-EM12, and is used for high speed welding of carbon and low alloy steels.

MIL-EA1 electrode results in higher strength than MIL-EM12 and is intended for welding of low alloy steels.

Neutral fluxes covered in this specification are intended for multiple pass welding. Active fluxes are intended for single pass welds.