KOBELCO WELDING ELECTRODE M/S LB-52-18 (E7018) Welding Accessories - KOBELCO Welding Electrode M/S LB-52-18 (E7018) LB 52-18 is an iron powder, low hydrogen type welding electrode used for welding 490 MPa class high tensile  steel. The weld metal has excellent mechanical porperties, toughness and crack resistibility. LB 52-18 contains mush ironpowder in its coating and highly efficient welding can be conducted. • Much iron powder contained in the coating gives high efficiency. • LB 52-18 produces the weld metal of excellent toughness and crack resistibility because of the characteristic peculiar to the low gydrogen type electrode. • Good with both AC and DC. • All position welding for 490 MPa class high tensile steel is performed, in the fields of ship building, machine and steel structural fabrications. Product is available in Size 2.6mm, 3.2mm, 4.0mm, 5.0mm. LB-52-18 is a low-hydrogen electrode with a high deposition rate for mild steel. L ” stands for low hydrogen, while “B” symbolizes a salg-shielding covered electrode.”52″ refers to the typical tensile strength of the deposited metal. “1” shows that it can be used in all positions, while “8” is the designation for “iron powder, low hydrogen ” as in the AWS E7018 specification. -Superior welding performance with either DC or AC. -Superior mechanical properties: constant tensile strength and high impact value. -Superior crack resistibility.