Oerlikon Tenax 58S description: TENAX 58S General purpose basic coated low hydrogen electrode containing iron powder additions, suitable for positional welding. The weld appearance is excellent and spatter levels minimal. The excellent mechanical properties also make this electrode suitable for critical applications. Very good x ray quality. Efficiency 120%. Available in Vacuum Pack Only. TENAX 58 S is suitable for unalloyed steels with low purity or higher carbon content, <0.4%C, and for buffer layers. Good welding characteristics, suitable for root passes and positional welding, welds are of X-ray quality. Material to be welded: EN 10025-3: S185, S235, S275, S355: P235, P265, P 335; S275, S 335, S420.