AtomArc® 10018-M1 is a low hydrogen, iron powder all-position electrode specially formulated to meet the more stringent requirements of Military Specification MIL-E-0022200/10 for mechanical properties, low coating moisture and diffusible hydrogen content. Hydrogen coupons analyzed by the gas chromatography method showed an average of 0.03 ml/g of diffusible hydrogen. Atom Arc 10018-M1 electrode is intended for welding high tensile steels, such as HY-80, HSLA-80, A710 and T-1 steel.