... , pressure vessels 1.AWS E7018 IS A KIND OF LOW HYDROGEN IRON POWDER WELDING ELECTRODE. USED IN ALL POSITION WITH BOTH ... .035 P ≤0.0403.MECHANICAL PROPERTIES OF DEPOSITED METAL(%): σs ≥ 400Mpa σb ≥ 490Mpa AKV (J) -30 'C ≥ 27J 4.DIFFUSED HYDROGEN CONTENT ... --200 210--250 ABS, GL .BV approved low hydrogen carbon steel,good quality,low price, small spatter , low fume,Welding electrode AWS ...