E 7018 Low Hydrogen E 7018 Structural Grade Low Hydrogen structural applications where crack resistance and high tensile strength matter most. It delivers dense, low-hydrogen weld deposits that hold up under dynamic loading and demanding service conditions. Classification E7018 Type Low Hydrogen Sizes Available 2.5 & 4.0mm DiameterRecommended Amps3.20mm90 – 150 A4.00mm140 – 210 A